| DIAGNOSTIC MANUAL FOR TATA MOTORS 1.4L & 2.2L COMMON RAIL APPLICATIONS | |||||||||||
| S.No | FAULT CODE | FAULT DESCRIPTION | CHECK 1 / RECTIFY 1 | CHECK 2 / RECTIFY 2 | CHECK 3 / RECTIFY 3 | CHECK 4 / RECTIFY 4 | CHECK 5 / RECTIFY 5 | CHECK 6 / RECTIFY 6 | CHECK 7 / RECTIFY 7 | CHECK 8 / RECTIFY 8 | CHECK 9 / RECTIFY 9 |
| 1 | P0087 | P0087 - Rail pressure low during cranking | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. Check if there are any physical damages or improper fittments.If there are any Replace the Sensor - Rail assembly | ECU connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the electrical continuity and insulation of the lines of all the sensors supplied by vext1 and vext2. Perform neccesary repair in case of any line problem | If the problem still persists, Replace the Sensor rail assembly | If the problem still persists. Replace the ECU | |||
| 2 | P0088 | P0088 - Rail pressure error (over pressure) | Perform diagnostics on the IMV (Fault chart of P0251). In case of electrical problem perform necessary repairs | Perform the diagnostics on the HP sensor to find faults P0192 and P0193. Do necessary repairs if the problem is with HP sensor | Check the LP circuit. Refer LP check procedure. Perform the neccesary repairs in case of any problem | Check the HP circuit. Refer HP check procedure. Perform neccesary repairs in case of any problem | Check the Injector. Perform neccesary repairs in case of any problem | Check the HP pump. Perform neccesary repairs in case of any problem | If the problem still persists. Replace the ECU | ||
| 3 | P0101 | P0101 - AMF plausibility fault | Check is electrical fault for AMF sensor present. If present, follow sensor check procedure | check air inlet circuit. Check for tightness of clips, clogging, inverted assembly | If problem persists, replace AMF sensor | ||||||
| 4 | P0102 | P0102 - AMF sensor fault - signal Low | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | ECU connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | If problem still persists. Replace AMF sensor | If problem still persists. Replace ECU | ||||
| 5 | P0103 | P0103 - AMS sensor fault - signal High | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | ECU connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | If problem still persists. Replace AMF sensor | If problem still persists. Replace ECU | ||||
| 6 | P0104 | AMF sensor - after air filter - gradiant fault | Check is electrical fault for AMF sensor present. If present, follow sensor check procedure | Check air inlet circuit. Check for tightness of clips, clogging, inverted assembly | If problem persists, replace AMF sensor | ||||||
| 7 | P0107 | P0107 - Atmospheric Pressure signal - low | Replace the ECU | ||||||||
| 8 | P0108 | P0108 - Atmospheric Pressure signal - High | Replace the ECU | ||||||||
| 9 | P0109 | P0109 - Atmospheric pressure sensor - electrical fault | Replace the ECU | ||||||||
| 10 | P1100 | P1100 - AMF sensor VEXT fault | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | ECU connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | If problem still persists. Replace AMF sensor | If problem still persists. Replace ECU | ||||
| 11 | P0112 | P0112 - Air Temperature Signal Low | check for vext 1 fault or If P0110 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Sensor Characteristics.Measure Voltage (5v) & Resistance at sensor terminals,If not ok Replace sensor | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | If the problem still persists. Replace the ECU | |||
| 12 | P0113 | P0113 - Air Temperature signal High | check for vext 1 fault or If P0110 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Sensor Characteristics.Measure Voltage (5v) & Resistance at sensor terminals,If not ok Replace sensor | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | If the problem still persists. Replace the ECU | |||
| 13 | P0115 | P0115 - Coolant Temperature Signal - Generic | Check whether fault code P1115 is present ! First deal with fault codes P1115, P0117, P0118 ( Refer Diagnostic tree in group coolant temperature signal -1 ) | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Sensor Characteristics. Measure Resistance at sensor terminals,If not ok Replace sensor | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | If still the problem persists, Replace the ECU | |||
| 14 | P0116 | P0116 - Coolant Temperature Signal - Plausibility | Check whether fault code P1115 is present ! First deal with fault codes P1115, P0117, P0118 ( Refer Diagnostic tree in group coolant temperature signal -1 ) | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Sensor Characteristics. Measure Resistance at sensor terminals,If not ok Replace sensor | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | If still the problem persists, Replace the ECU | |||
| 15 | P0117 | P0117 - Coolant temperature Signal - low | check for vext 1 fault or If P0115 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Sensor Characteristics. Measure Voltage (5v) & Resistance at sensor terminals,If not ok Replace sensor | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace ECU. If fault pertains still change the ECU | |||
| 16 | P0118 | P0118 - Coolant temperature signal - High | check for vext 1 fault or If P0115 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Sensor Characteristics. Measure Voltage (5v) & Resistance at sensor terminals,If not ok Replace sensor | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace ECU. If fault pertains still change the ECU | |||
| 17 | P0119 | P0119 - Coolant temperature signal - GRAD | check for vext 1 fault or If P0115 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Sensor Characteristics. Measure Voltage (5v) & Resistance at sensor terminals,If not ok Replace sensor | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace ECU. If fault pertains still change the ECU | |||
| 18 | P0120 | P0120 - Limp Home Mode activated | Deal with all faults present with the "LIMP HOME" . IMV drive fault, Pedal limp fault, Pedal stuch fault, vext2 fault, p_l_nvm fault, water-in-fuel | ||||||||
| 19 | P0122 | P0122 - Pedal sensor Track1 signal - low | Check for vext 1 fault or If P1120 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Intermediate connector. Remove Intemediate connector between EMS harness and vehicle wiring harness.Check for terminal back out.Do necessary repairs reconnect and check the fault. | Visually check sensor. If there are any physical damages replace the sensor and read the errors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace the sensor. Replace the sensor and ensure fault vanishes with new sensor | If fault pertains still change the ECU | |
| 20 | P0123 | P0123 - Pedal sensor track 1 signal - High | Check for vext 1 fault or If P0120 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Intermediate connector. Remove Intemediate connector between EMS harness and vehicle wiring harness.Check for terminal back out.Do necessary repairs reconnect and check the fault. | Visually check sensor. If there are any physical damages replace the sensor and read the errors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace the sensor. Replace the sensor and ensure fault vanishes with new sensor | If fault pertains still change the ECU | |
| 21 | P0182 | P0182 - Fuel temperature signal - low | check for vext 1 fault or If P1180 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Sensor Characteristics. Measure Voltage (5v) & Resistance at sensor terminals,If not ok Replace sensor | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace ECU. If fault pertains still change the ECU | |||
| 22 | P0183 | P0183 - Fuel temperature signal - High | check for vext 1 fault or If P0180 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Sensor Characteristics. Measure Voltage (5v) & Resistance at sensor terminals,If not ok Replace sensor | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace ECU. If fault pertains still change the ECU | |||
| 23 | P0192 | P0192 - Rail pressure signal - low | check for vext 1 fault or If P1190 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Check the high pressure circuit for Leak. Check for leak individually in rail, Hp pipes..Replace the part on any leaks detected. | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. If there are any physical damages replace the sensor - rail assembly and read the errors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Problem still persists !. Replace the sensor - Rail assembly and check for faults. | Problem still persists! Replace the ECU | |
| 24 | P0193 | P0193 - Rail pressure signal - High | check for vext 1 fault or If P1190 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Check the high pressure circuit for Leak. Check for leak individually in rail, Hp pipes..Replace the part on any leaks detected. | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. If there are any physical damages replace the sensor - rail assembly and read the errors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Problem still persists !. Replace the sensor - Rail assembly and check for faults. | Problem still persists! Replace the ECU | |
| 25 | P0194 | P0194 - Rail pressure signal - Pressure Drop | check for vext 1 fault or If P1190 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Check the high pressure circuit for Leak. Check for leak individually in rail, Hp pipes..Replace the part on any leaks detected. | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. If there are any physical damages replace the sensor - rail assembly and read the errors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Problem still persists !. Replace the sensor - Rail assembly and check for faults. | Problem still persists! Replace the ECU | |
| 26 | P0201 | P0201 - Cylinder no.1 Injector - open circuit | Switch off the ignition.wait for ten seconds.Remove the injector connector check the connection.Connect it properly again. The problem should vanish after the reconnection. Note: Limit the number of times injector connection is disconnected | Check the electrical continuity between the two injector terminals using a multimeter. If the continuity is not there then replace the respective injector with proper care and precaution. Write new Injector I2C values into ECU | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1) Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | If the problem still persists. Replace the Injector and check if the problem is solved. Write new Injector I2C values into ECU | If the problem still persists. Replace the ECU and check if the problem is solved | |||
| 27 | P0202 | P0202 - Cylinder no.2 Injector - open circuit | Switch off the ignition.wait for ten seconds.Remove the injector connector check the connection.Connect it properly again. The problem should vanish after the reconnection. Note: Limit the number of times injector connection is disconnected | Check the electrical continuity between the two injector terminals using a multimeter. If the continuity is not there then replace the respective injector with proper care and precaution. Write new Injector I2C values into ECU | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1) Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | If the problem still persists. Replace the Injector and check if the problem is solved. Write new Injector I2C values into ECU | If the problem still persists. Replace the ECU and check if the problem is solved | |||
| 28 | P0203 | P0203 - Cylinder no.3 Injector - open circuit | Switch off the ignition.wait for ten seconds.Remove the injector connector check the connection.Connect it properly again. The problem should vanish after the reconnection. Note: Limit the number of times injector connection is disconnected | Check the electrical continuity between the two injector terminals using a multimeter. If the continuity is not there then replace the respective injector with proper care and precaution. Write new Injector I2C values into ECU | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1) Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | If the problem still persists. Replace the Injector and check if the problem is solved. Write new Injector I2C values into ECU | If the problem still persists. Replace the ECU and check if the problem is solved | |||
| 29 | P0204 | P0204 - Cylinder no.4 Injector - open circuit | Switch off the ignition.wait for ten seconds.Remove the injector connector check the connection.Connect it properly again. The problem should vanish after the reconnection. Note: Limit the number of times injector connection is disconnected | Check the electrical continuity between the two injector terminals using a multimeter. If the continuity is not there then replace the respective injector with proper care and precaution. Write new Injector I2C values into ECU | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1) Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | If the problem still persists. Replace the Injector and check if the problem is solved. Write new Injector I2C values into ECU | If the problem still persists. Replace the ECU and check if the problem is solved | If problem persists, replace wiring harness | If problem persists replace ECU | |
| 30 | P0216 | P0216 - current too high on Bank 1 | Check injector connections for open or short circuit | Disconnect injectors and key on. If problem still present check wiring harness connections | If fault dissapears, clear memory and reconnect injectors one by one | If problem appears on connecting any injector, replace injector | If problem repeats, perform previous steps on other injectors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1) Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | ||
| 31 | P0222 | P0222 - Pedal sensor Track2 signal - low | Check for vext 1 fault or If P1120 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensor | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Intermediate connector. Remove Intemediate connector between EMS harness and vehicle wiring harness.Check for terminal back out.Do necessary repairs reconnect and check the fault. | Visually check sensor. If there are any physical damages replace the sensor and read the errors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace the sensor. Replace the sensor and ensure fault vanishes with new sensor | Replace the ECU. If fault pertains still change the ECU | |
| 32 | P0223 | P0223 - Pedal sensor track 2 signal - High | Check for vext 1 fault or If P1120 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensor | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Intermediate connector. Remove Intemediate connector between EMS harness and vehicle wiring harness.Check for terminal back out.Do necessary repairs reconnect and check the fault. | Visually check sensor. If there are any physical damages replace the sensor and read the errors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace the sensor. Replace the sensor and ensure fault vanishes with new sensor | Replace the ECU. If fault pertains still change the ECU | |
| 33 | P0236 | P0236 - Boost Pressure Plausibility | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. If there are any physical damages replace the sensor and read the errors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | If problem still persists, Replace the Sensor | If problem still persists, Replace the ECU | |||
| 34 | P0237 | P0237 - Boost Pressure Signal - low | check for vext 1 fault or If P0105 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | check air inlet circuit. Check for tightness of clips, clogging, inverted assembly | Check sensor connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. If there are any physical damages. Replace the sensor and read the errors. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | If the problem still persists. Replace the sensor and ensure fault vanishes with new sensor | If the problem still persists. Change the ECU | |
| 35 | P0238 | P0238 - Boost Pressure Signal - High | check for vext 1 fault or If P0105 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | check air inlet circuit. Check for tightness of clips, clogging, inverted assembly | Check sensor connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. If there are any physical damages. Replace the sensor and read the errors. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | If the problem still persists. Replace the sensor and ensure fault vanishes with new sensor | If the problem still persists. Change the ECU | |
| 36 | P0245 | P0245 - VGT drive short to Ground | Check actuator connection. Remove and check for oxidation of damage. If so do necessary repair | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | If problem persists replace actuator | If problem persists, Replace ECU | ||||
| 37 | P0246 | P0246 - VGT drive short to Vbatt | Check actuator connection. Remove and check for oxidation of damage. If so do necessary repair | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | If problem persists replace actuator | If problem persists, Replace ECU | ||||
| 38 | P0251 | P0251 - IMV drive - short circuit | Check the IMV connection. Remove the IMV connector and fit it again,Check for loose connection or connector broken.Rectify if loose connection.Change wiring harness if the connector is broken. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace the IMV. Replace the IMV and ensure fault vanishes with new sensor | Replace the ECU. If fault pertains still change the ECU | ||||
| 39 | P0253 | P0253 - IMV drive - short circuit to ground | Check the IMV connection. Remove the IMV connector and fit it again,Check for loose connection or connector broken.Rectify if loose connection.Change wiring harness if the connector is broken. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace the IMV. Replace the IMV and ensure fault vanishes with new sensor | Replace the ECU. If fault pertains still change the ECU | ||||
| 40 | P0255 | P0255 - IMV drive - open circuit. | Check the IMV connection. Remove the IMV connector and fit it again,Check for loose connection or connector broken.Rectify if loose connection.Change wiring harness if the connector is broken. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace the IMV. Replace the IMV and ensure fault vanishes with new sensor | Replace the ECU. If fault pertains still change the ECU | ||||
| 41 | P0263 | P0263 - Cylinder 1 Combustion imbalance | Check the cylinder for leaks. Perform necessary repairs | Check the inlet ducts. If the inlet ducts are clogged, clean the inlet ducts and check the EGR operation | Check tappet condition & valve settting. Perform the neccesary repairs in case of any problem | Check the pressure checking fault section for the injector diagnostics. Replace if the Injector is faulty | Still the problem persists! Change the ECU | ||||
| 42 | P0266 | P0266 - Cylinder 2 combustion imbalance | Check the cylinder for leaks. Perform necessary repairs | Check the inlet ducts. If the inlet ducts are clogged, clean the inlet ducts and check the EGR operation | Check tappet condition & valve settting. Perform the neccesary repairs in case of any problem | Check the pressure checking fault section for the injector diagnostics. Replace if the Injector is faulty | Still the problem persists! Change the ECU | ||||
| 43 | P0269 | P0269 - Cylinder 3 combustion imbalance | Check the cylinder for leaks. Perform necessary repairs | Check the inlet ducts. If the inlet ducts are clogged, clean the inlet ducts and check the EGR operation | Check tappet condition & valve settting. Perform the neccesary repairs in case of any problem | Check the pressure checking fault section for the injector diagnostics. Replace if the Injector is faulty | Still the problem persists! Change the ECU | ||||
| 44 | P0272 | P0272 - Cylinder 4 combustion imbalance | Check the cylinder for leaks. Perform necessary repairs | Check the inlet ducts. If the inlet ducts are clogged, clean the inlet ducts and check the EGR operation | Check tappet condition & valve settting. Perform the neccesary repairs in case of any problem | Check the pressure checking fault section for the injector diagnostics. Replace if the Injector is faulty | Still the problem persists! Change the ECU | ||||
| 45 | P0299 | P0299 - Boost control error | Check boost sensor connection. Remove and check for oxidation of damage. If so do necessary repair | Check correct connection of boost pressure VSV. Should not be connected to EGR VSV controller | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check boost leakage. Check tightness of hoses and connections | Check blockage in air inlet circuit - inlet manifold, airfilter. If blockage is noticed, rectify | Check turbocharger. If found faulty replace | |||
| 46 | P0325 | P0325 - Accelerometer - No signal when idling | Sensor Connection . Remove the Sensor connection.connect again and ensure proper fittment. | Sensor fittment. Check the tightening torque and the direction of sensor fittment | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out. If any electrical isolation is found do the necessary repair. | If problem still persists. Replace the Sensor | If problem still persists. Check the ECU | |||
| 47 | P0335 | P0335 - Engine Speed Signal- loss of signal | Sensor Connection. Remove the Sensor connection.connect again and ensure proper fittment. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | Check for metallic particles/burr in sensor tip and flywheel teeth. Clean the sensor and flywheel | If problem still persists. Replace the Sensor | If problem still persists. Check the Target | If problem still persists. Replace the ECU | ||
| 48 | P0336 | P0336 - Engine Speed Signal - loss of gap | Sensor Connection. Remove the Sensor connection.connect again and ensure proper fittment. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | Check for metallic particles/burr in sensor tip and flywheel teeth. Clean the sensor and flywheel | If problem still persists. Replace the Sensor | If problem still persists. Check the Target | If problem still persists. Replace the ECU | ||
| 49 | P0337 | P0337 - Engine Speed Signal - Engine stalled | Sensor Connection. Remove the Sensor connection.connect again and ensure proper fittment. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | Check for metallic particles/burr in sensor tip and flywheel teeth. Clean the sensor and flywheel | If problem still persists. Replace the Sensor | If problem still persists. Check the Target | If problem still persists. Replace the ECU | ||
| 50 | P0340 | P0340 - Cam shaft signal - loss of signal | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. If there are any physical damages replace the sensor and read the errors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | If problem still persists. Check the Target,If target is the problem Replace it | Check the setting of the timing/pump. If the timing is not proper adjust the timing | If problem still persists. Replace the ECU | ||
| 51 | P0341 | P0341 - Cam Shaft signal - Synchronisation | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. If there are any physical damages replace the sensor and read the errors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | If problem still persists. Check the Target,If target is the problem Replace it | Check the setting of the timing/pump. If the timing is not proper adjust the timing | If problem still persists. Replace the ECU | ||
| 52 | P0371 | P0371 - Engine speed signal - too early | Sensor Connection. Remove the Sensor - connect again and ensure proper fittment. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1) Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins. If any electrical isolation is found do the necessary repair | Check crank sensor to flywheel air gap to be between 0.7 to 1.3 mm. In case of any deviation do corrective action. | If problem still persists. Replace the Sensor | If problem still persists. Replace the ECU | |||
| 53 | P0372 | P0372 - Engine speed signal - loss of teeth | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | If problem still persists. Replace the Sensor | If problem still persists. Check the Target | If problem still persists. Replace the ECU | |||
| 54 | P0380 | P0380 - glowplug driver fault (module) | Check connection of glowplug relay. If connection problem, do necessary repair | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If problem persiste, replace glowplug relay | If problem persists, Replace ECU | ||||
| 55 | P0400 | P0400 - EGR Air error | Check for EGR electrical fault P1405. If present, rectify the fault | Vacuum hose connections. Check correct and proper connections of vacuum hose to modulator/VSV and EGR valve | Vacuum hose condition. Check vacuum hose for pinching, bending or leakage and rectify | Check correctness of software - progressive or on-off EGR software corresponding to vehicle. If found to mismatch with vehicle configuration, replace with correct ECU | Check blockage in air inlet circuit - inlet manifold, airfilter. If blockage is noticed, rectify | If problem still persists. Replace modulator / VSV | If problem still persists. Replace EGR valve | If problem still persists. Replace AMF sensor | If problem still persists, check vacuum pump efficiency |
| 56 | P0489 | P0489 - EGR solenoid valve control - OC SC- | Check the EGR vacuum solenoid valve connection. Perform the necessary repairs if the problem is with the connection | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | If problem still persists. Replace Modulator / VSV | If the problem still persists, Replace the ECU | ||||
| 57 | P0490 | P0490 - EGR solenoid valve control - SC+ | Check the EGR vacuum solenoid valve connection. Perform the necessary repairs if the problem is with the connection | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | If problem still persists. Replace Modulator / VSV | If the problem still persists, Replace the ECU | ||||
| 58 | P0500 | P0500 - Vehicle speed signal - Generic | Confirm vehicle speed is displayed in dash board. If not check continuity from Vehicle speed sensor to dashboard | If electrical continuity is Ok. Replace vehicle speed sensor | If problem persists. Replace Cluster | If vehicle speed is displayed in dashboard. check electrical connection between dashboard and ECU | Remove intermediate connector, check pin connection, oxidation or rust. If found to have problem, rectify | If problem still persists. Replace ECU | |||
| 59 | P0501 | P0501 -Vehicle speed signal - Plausibility | Confirm vehicle speed is displayed in dash board. If not check continuity from Vehicle speed sensor to dashboard | If electrical continuity is Ok. Replace vehicle speed sensor | If problem persists. Replace Cluster | If vehicle speed is displayed in dashboard. check electrical connection between dashboard and ECU | Remove intermediate connector, check pin connection, oxidation or rust. If found to have problem, rectify | If problem still persists. Replace ECU | |||
| 60 | P0502 | P0502 -Vehicle speed signal loss | Confirm vehicle speed is displayed in dash board. If not check continuity from Vehicle speed sensor to dashboard | If electrical continuity is Ok. Replace vehicle speed sensor | If problem persists. Replace Cluster | If vehicle speed is displayed in dashboard. check electrical connection between dashboard and ECU | Remove intermediate connector, check pin connection, oxidation or rust. If found to have problem, rectify | If problem still persists. Replace ECU | |||
| 61 | P0503 | P0503 - Vehicle speed signal - excessive | Confirm vehicle speed is displayed in dash board. If not check continuity from Vehicle speed sensor to dashboard | If electrical continuity is Ok. Replace vehicle speed sensor | If problem persists. Replace Cluster | If vehicle speed is displayed in dashboard. check electrical connection between dashboard and ECU | Remove intermediate connector, check pin connection, oxidation or rust. If found to have problem, rectify | If problem still persists. Replace ECU | |||
| 62 | P0562 | P0562 - Battery Voltage Signal - Low | Check the battery voltage with the ignition switch on. If the voltage is too low then recharge the battery | Check whether the battery terminal's are connected properly and they are tight. If not proper do the necessary repair | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the charging circuit. In case of any problems in charging do the necessary repair | If problem still persists, Replace the ECU | ||||
| 63 | P0563 | P0563 - Battery Voltage Signal - High | Check the battery voltage with the ignition switch on. If the voltage is too low then recharge the battery | Check whether the battery terminal's are connected properly and they are tight. If not proper do the necessary repair | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the charging circuit. In case of any problems in charging do the necessary repair | If problem still persists, Replace the ECU | ||||
| 64 | P0571 | P0571 - Brake switch sensor-Brake pedal - signal error | Check switch connection. If connection problem, do necessary rectification | Check 12V switch supply. Check continuity and corresponding fuse | Check contact functionality. If contact problem do necessary repair. Otherwise replace brake switch | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem still persists, Replace the ECU | |||
| 65 | P0606 | P0606 - Watch dog - ECU Reset | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | If Problem persists, Replace the ECU | |||||||
| 66 | P0642 | P0642 - 5v sensor supply(vext 1) - low | Check the connection of sensors supplied by vext 1and vext 2 (air flow meter, boost pressure sensor, boost temperature sensor, pedal sensor, cam sensor) . Check the individual connection.Correct in case of any problem. | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the electrical continuity and insulation of the lines of all the sensors supplied by vext1 and vext2. Perform neccesary repair in case of any line problem | Apply the diagnostic charts to the sensors supplied by vext1 and vext2 | ||||
| 67 | P0643 | P0643 - 5v sensor supply(vext 1) - high | Check the connection of sensors supplied by vext 1and vext 2 (air flow meter, boost pressure sensor, boost temperature sensor, pedal sensor, cam sensor) . Check the individual connection.Correct in case of any problem. | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the electrical continuity and insulation of the lines of all the sensors supplied by vext1 and vext2. Perform neccesary repair in case of any line problem | Apply the diagnostic charts to the sensors supplied by vext1 and vext2 | ||||
| 68 | P0646 | P0646 - Air conditioning relay control - short circuit to ground | Check the compressor control relay connection. If there is some problem in the connection perform the necessary repair. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem persists. Replace the relay and start the actuator test | If the problem still persists, Replace the ECU | ||||
| 69 | P0647 | P0647 - Air conditioning relay control - short circuit | Check the compressor control relay connection. If there is some problem in the connection perform the necessary repair. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem persists. Replace the relay and start the actuator test | If the problem still persists, Replace the ECU | ||||
| 70 | P0650 | P0650 - MI lamp fault | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check instument cluster | ||||||
| 71 | P0652 | P0652 - 5v sensor supply (vext 1) - low | Check the connection of sensors supplied by vext 1and vext 2 (air flow meter, boost pressure sensor, boost temperature sensor, pedal sensor, cam sensor) . Check the individual connection.Correct in case of any problem. | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the electrical continuity and insulation of the lines of all the sensors supplied by vext1 and vext2. Perform neccesary repair in case of any line problem | Apply the diagnostic charts to the sensors supplied by vext1 and vext2 | ||||
| 72 | P0653 | P0653 - 5v sensor supply (vext 2) - high | Check the connection of sensors supplied by vext 1and vext 2 (air flow meter, boost pressure sensor, boost temperature sensor, pedal sensor, cam sensor) . Check the individual connection.Correct in case of any problem. | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the electrical continuity and insulation of the lines of all the sensors supplied by vext1 and vext2. Perform neccesary repair in case of any line problem | Apply the diagnostic charts to the sensors supplied by vext1 and vext2 | ||||
| 73 | P0685 | P685 - ECU supply control - Relay Stuck | Check the connection of the supply relay. Perform necessary repairs | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1) Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins. If any electrical isolation is found do the necessary repair | If problem still persists. Replace the Relay | If problem still persists. Replace the ECU | ||||
| 74 | P0691 | P0691 - Low speedfan control - short circuit to earth | Check the fan control relay connection. If there is some problem in the connection perform the necessary repair. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem persists. Replace the relay and start the actuator test | If the problem still persists. Replace the ECU | ||||
| 75 | P0692 | P0692 - Low speed fan control - short circuit | Check the fan control relay connection. If there is some problem in the connection perform the necessary repair. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem persists. Replace the relay and start the actuator test | If the problem still persists. Replace the ECU | ||||
| 76 | P0693 | P0693 - Electrical fan drive fault - short to ground | Check the fan control relay connection. If there is some problem in the connection perform the necessary repair. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem persists. Replace the relay and start the actuator test | If the problem still persists. Replace the ECU | ||||
| 77 | P0694 | P0694 - Electrical fan drive fault - short circuit | Check the fan control relay connection. If there is some problem in the connection perform the necessary repair. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem persists. Replace the relay and start the actuator test | If the problem still persists. Replace the ECU | ||||
| 78 | P0698 | P0698 - 2.5V sensor Supply 2Aux fault - High | Check the connection of sensors supplied by vext 1and vext 2 (air flow meter, boost pressure sensor, boost temperature sensor, pedal sensor, cam sensor) . Check the individual connection.Correct in case of any problem. | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the electrical continuity and insulation of the lines of all the sensors supplied by vext1 and vext2. Perform neccesary repair in case of any line problem | Apply the diagnostic charts to the sensors supplied by vext1 and vext2 | ||||
| 79 | P0699 | P0699 - 2.5V sensor Supply 2Aux fault - ADC | Check the connection of sensors supplied by vext 1and vext 2 (air flow meter, boost pressure sensor, boost temperature sensor, pedal sensor, cam sensor) . Check the individual connection.Correct in case of any problem. | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the electrical continuity and insulation of the lines of all the sensors supplied by vext1 and vext2. Perform neccesary repair in case of any line problem | Apply the diagnostic charts to the sensors supplied by vext1 and vext2 | ||||
| 80 | P0704 | P0704 - Clutch switch electrical fault | Check switch connection. If connection problem, do necessary rectification | Check 12V switch supply. Check continuity and corresponding fuse | Check contact functionality. If contact problem do necessary repair. Otherwise replace brake switch | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem still persists, Replace the ECU | |||
| 81 | P1101 | P1101 - AMF sensor electrical fault | Check for faults P0102, P0103, P1100. If present follow rectification procedure | check air inlet circuit. Check for tightness of clips, clogging, inverted assembly | |||||||
| 82 | P1105 | P1105 - Atmospheric Pressure sensor supply - Vext | Replace the ECU | ||||||||
| 83 | P1107 | P1107 - Atmospheric pressure signal - generic | Replace the ECU | ||||||||
| 84 | P1110 | P1110 - Air Temperature sensor supply - vext | check for vext 1 fault or If P0110 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Sensor Characteristics.Measure Voltage (5v) & Resistance at sensor terminals,If not ok Replace sensor | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | If the problem still persists. Replace the ECU | |||
| 85 | P1115 | P1115 - Coolant temperature sensor supply - vext | check for vext 1 fault or If P0115 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Sensor Characteristics. Measure Voltage (5v) & Resistance at sensor terminals,If not ok Replace sensor | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace ECU. If fault pertains still change the ECU | |||
| 86 | P1120 | P1120 - Pedal sensor track 1_supply | Check for vext 1 fault or If P1120 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Intermediate connector. Remove Intemediate connector between EMS harness and vehicle wiring harness.Check for terminal back out.Do necessary repairs reconnect and check the fault. | Visually check sensor. If there are any physical damages replace the sensor and read the errors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace the sensor. Replace the sensor and ensure fault vanishes with new sensor | If fault pertains still change the ECU | |
| 87 | P1121 | P1121 - Reduced flow mode activated | Deal with all faults present with the "Reduced torque recovery mode". battery fault, egr drive fault, IMV drive fault, pedal fault, rail pr. Electrical fault, vext2 fault, egr feedback fault, egr air error | ||||||||
| 88 | P1123 | P1123 - Pedal sensor - track 1&2 correlation ( 1 > 2) | Check faults P0120 , P0122, P0123 & P0220, P0222, P0223 and rectify | ||||||||
| 89 | P1171 | P1171 - Cylinder 1 Injector - MDP Drift | Check whether I2C values are entered in ECU. If values show 80 in all the cells, write values found on injectors into ECU using diagnostic tool | Check whether I2C entered in ECU matches with sticker on injectors. If values mismatch, write correct values found on injector into the ECU | I2C Checking. Write the I2C of the corresponding Injector using the Diagnostic tool, Erase the Fault. switch the Ignition off and on again | If the fault is still present, Replace the Injector and write the new I2C into the ECU | If the Problem still persists! Replace the ECU | ||||
| 90 | P1172 | P1172 - Cylinder 2 Injector - MDP Drift | Check whether I2C values are entered in ECU. If values show 80 in all the cells, write values found on injectors into ECU using diagnostic tool | Check whether I2C entered in ECU matches with sticker on injectors. If values mismatch, write correct values found on injector into the ECU | I2C Checking. Write the I2C of the corresponding Injector using the Diagnostic tool, Erase the Fault. switch the Ignition off and on again | If the fault is still present, Replace the Injector and write the new I2C into the ECU | If the Problem still persists! Replace the ECU | ||||
| 91 | P1173 | P1173 - Cylinder 3 Injector - MDP Drift | Check whether I2C values are entered in ECU. If values show 80 in all the cells, write values found on injectors into ECU using diagnostic tool | Check whether I2C entered in ECU matches with sticker on injectors. If values mismatch, write correct values found on injector into the ECU | I2C Checking. Write the I2C of the corresponding Injector using the Diagnostic tool, Erase the Fault. switch the Ignition off and on again | If the fault is still present, Replace the Injector and write the new I2C into the ECU | If the Problem still persists! Replace the ECU | ||||
| 92 | P1174 | P1174 - Cylinder 3 Injector - MDP Drift | Check whether I2C values are entered in ECU. If values show 80 in all the cells, write values found on injectors into ECU using diagnostic tool | Check whether I2C entered in ECU matches with sticker on injectors. If values mismatch, write correct values found on injector into the ECU | I2C Checking. Write the I2C of the corresponding Injector using the Diagnostic tool, Erase the Fault. switch the Ignition off and on again | If the fault is still present, Replace the Injector and write the new I2C into the ECU | If the Problem still persists! Replace the ECU | ||||
| 93 | P1180 | P1180 - Fuel temperature sensor supply - vext | check for vext 1 fault or If P1180 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Sensor Characteristics. Measure Voltage (5v) & Resistance at sensor terminals,If not ok Replace sensor | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace ECU. If fault pertains still change the ECU | |||
| 94 | P1190 | P1190 - Rail pressure sensor supply - vext | check for vext 1 fault or If P1190 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | Check the high pressure circuit for Leak. Check for leak individually in rail, Hp pipes..Replace the part on any leaks detected. | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. If there are any physical damages replace the sensor - rail assembly and read the errors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Problem still persists !. Replace the sensor - Rail assembly and check for faults. | Problem still persists! Replace the ECU | |
| 95 | P1191 | P1191 - Rail Pressure sensor fault(at key on) | Perform diagnostics on the IMV (Fault chart of P0251), In case of electrical problem perform necessary repairs | Perform the diagnostics on the HP sensor to find faults P0192 and P0193. Do necessary repairs if the problem is with HP sensor | Check the LP circuit. Refer LP check procedure, Perform the neccesary repairs in case of any problem | Check the HP circuit. Refer HP check procedure. Perform neccesary repairs in case of any problem | Check the Injector. Perform neccesary repairs in case of any problem | Check the HP pump. Perform neccesary repairs in case of any problem | If the problem still persists, Replace the ECU | ||
| 96 | P1192 | P1192 - Rail pressure - low - when ignition switched on | Sensor Connection. Remove the Sensor - connect again and ensure proper fittment. | Visually check sensor. Check if there are any physical damages or improper fittments.If there are any Replace the Sensor - Rail assembly | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the electrical continuity and insulation of the lines of all the sensors supplied by vext1 and vext2. Perform neccesary repair in case of any line problem | If the problem still persists, Replace the rail | If the problem still persists, Replace the ECU | |||
| 97 | P1193 | P1193 - Rail pressure - High - when ignition switched on | Sensor Connection. Remove the Sensor - connect again and ensure proper fittment. | Visually check sensor. Check if there are any physical damages or improper fittments.If there are any Replace the Sensor - Rail assembly | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the electrical continuity and insulation of the lines of all the sensors supplied by vext1 and vext2. Perform neccesary repair in case of any line problem | If the problem still persists, Replace the rail | If the problem still persists, Replace the ECU | |||
| 98 | P1201 | P1201 - Cylinder 1 Injector - Short circuit | Switch off the ignition and check the Injector connection. Perform neccesary repairs if the problem is with the connection | Disconnect the injector and check for the fault. If the fault does nt exist then the Injector is faulty - Replace the Injector. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | If the problem still persists. Replace the ECU | ||||
| 99 | P1202 | P1202 - Cylinder 2 Injector - Short circuit | Switch off the ignition and check the Injector connection. Perform neccesary repairs if the problem is with the connection | Disconnect the injector and check for the fault. If the fault does nt exist then the Injector is faulty - Replace the Injector. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | If the problem still persists. Replace the ECU | ||||
| 100 | P1203 | P1203 - Cylinder 3 Injector - Short Circuit | Switch off the ignition and check the Injector connection. Perform neccesary repairs if the problem is with the connection | Disconnect the injector and check for the fault. If the fault does nt exist then the Injector is faulty - Replace the Injector. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | If the problem still persists. Replace the ECU | ||||
| 101 | P1204 | P1204 - Cylinder 4 Injector - Short circuit | Switch off the ignition and check the Injector connection. Perform neccesary repairs if the problem is with the connection | Disconnect the injector and check for the fault. If the fault does nt exist then the Injector is faulty - Replace the Injector. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out . If any electrical isolation is found do the necessary repair | If the problem still persists. Replace the ECU | ||||
| 102 | P1216 | P1216 - current too high on bank 2 | Check injector connections for open or short circuit | Disconnect injectors and key on. If problem still present check wiring harness connections | If fault dissapears, clear memory and reconnect injectors one by one | If problem appears on connecting any injector, replace injector | If problem repeats, perform previous steps on other injectors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1) Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | ||
| 103 | P1220 | P1220 - Pedal sensor track 2 - electrical VEXT | Check for vext 1 fault or If P1120 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensor | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Intermediate connector. Remove Intemediate connector between EMS harness and vehicle wiring harness.Check for terminal back out.Do necessary repairs reconnect and check the fault. | Visually check sensor. If there are any physical damages replace the sensor and read the errors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | Replace the sensor. Replace the sensor and ensure fault vanishes with new sensor | Replace the ECU. If fault pertains still change the ECU | |
| 104 | P1223 | P1223 - Pedal sensor - track 1&2 correlation ( 2 > 1) | Check faults P0120 , P0122, P0123 & P0220, P0222, P0223 and rectify | ||||||||
| 105 | P1235 | P1235 - Boost Pressure sensor supply | check for vext 1 fault or If P0105 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | check air inlet circuit. Check for tightness of clips, clogging, inverted assembly | Check sensor connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. If there are any physical damages. Replace the sensor and read the errors. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | If the problem still persists. Replace the sensor and ensure fault vanishes with new sensor | If the problem still persists. Change the ECU | |
| 106 | P1236 | P1236 - Boost Pr (electrical) | check for vext 1 fault or If P0105 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | check air inlet circuit. Check for tightness of clips, clogging, inverted assembly | Check sensor connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. If there are any physical damages. Replace the sensor and read the errors. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | If the problem still persists. Replace the sensor and ensure fault vanishes with new sensor | If the problem still persists. Change the ECU | |
| 107 | P1237 | P1237 - Boost pressure signal - low -( when Ignition on) | check for vext 1 fault or If P0105 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | check air inlet circuit. Check for tightness of clips, clogging, inverted assembly | Check sensor connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. If there are any physical damages. Replace the sensor and read the errors. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | If the problem still persists. Replace the sensor and ensure fault vanishes with new sensor | If the problem still persists. Change the ECU | |
| 108 | P1238 | P1238 - Boost Pressure Signal High ( When ignition on ) | check for vext 1 fault or If P0105 is present. Disconnect the sensors supplied by VEXT one by one and check if fault disappears.If the fault no longer appears then the sensor which is removed is faulty,If the fault still persists after changing all sensors than check Electrical continuity and SC in all resp sensors | check air inlet circuit. Check for tightness of clips, clogging, inverted assembly | Check sensor connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Visually check sensor. If there are any physical damages. Replace the sensor and read the errors. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check for Electrical Isolation. 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins | If the problem still persists. Replace the sensor and ensure fault vanishes with new sensor | If the problem still persists. Change the ECU | |
| 109 | P1253 | P1253 - Rail pressure control - Negative error | Perform diagnostics on the IMV (Fault chart of P0251). In case of electrical problem perform necessary repairs | Perform the diagnostics on the HP sensor to find faults P0192 and P0193. Do necessary repairs if the problem is with HP sensor | Check the LP circuit. Refer LP check procedure. Perform the neccesary repairs in case of any problem | Check the HP circuit. Refer HP check procedure. Perform neccesary repairs in case of any problem | Check the Injector. Perform neccesary repairs in case of any problem | Check the HP pump. Perform neccesary repairs in case of any problem | If the problem still persists. Replace the ECU | ||
| 110 | P1254 | P1254 - Rail pressure control - Positive error | Perform diagnostics on the IMV (Fault chart of P0251). In case of electrical problem perform necessary repairs | Perform the diagnostics on the HP sensor to find faults P0192 and P0193. Do necessary repairs if the problem is with HP sensor | Check the LP circuit. Refer LP check procedure. Perform the neccesary repairs in case of any problem | Check the HP circuit. Refer HP check procedure. Perform neccesary repairs in case of any problem | Check the Injector. Perform neccesary repairs in case of any problem | Check the HP pump. Perform neccesary repairs in case of any problem | If the problem still persists. Replace the ECU | ||
| 111 | P1256 | P1256 - Rail pressure control - Trim low and flow low | Perform diagnostics on the IMV (Fault chart of P0251). In case of electrical problem perform necessary repairs | Perform the diagnostics on the HP sensor to find faults P0192 and P0193. Do necessary repairs if the problem is with HP sensor | Check the LP circuit. Refer LP check procedure. Perform the neccesary repairs in case of any problem | Check the HP circuit. Refer HP check procedure. Perform neccesary repairs in case of any problem | Check the Injector. Perform neccesary repairs in case of any problem | Check the HP pump. Perform neccesary repairs in case of any problem | If the problem still persists. Replace the ECU | ||
| 112 | P1257 | P1257 - Rail pressure control - Trim low and flow high | Perform diagnostics on the IMV (Fault chart of P0251). In case of electrical problem perform necessary repairs | Perform the diagnostics on the HP sensor to find faults P0192 and P0193. Do necessary repairs if the problem is with HP sensor | Check the LP circuit. Refer LP check procedure. Perform the neccesary repairs in case of any problem | Check the HP circuit. Refer HP check procedure. Perform neccesary repairs in case of any problem | Check the Injector. Perform neccesary repairs in case of any problem | Check the HP pump. Perform neccesary repairs in case of any problem | If the problem still persists. Replace the ECU | ||
| 113 | P1258 | P1258 - Rail pressure control - Trim high and flow low | Perform diagnostics on the IMV (Fault chart of P0251). In case of electrical problem perform necessary repairs | Perform the diagnostics on the HP sensor to find faults P0192 and P0193. Do necessary repairs if the problem is with HP sensor | Check the LP circuit. Refer LP check procedure. Perform the neccesary repairs in case of any problem | Check the HP circuit. Refer HP check procedure. Perform neccesary repairs in case of any problem | Check the Injector. Perform neccesary repairs in case of any problem | Check the HP pump. Perform neccesary repairs in case of any problem | If the problem still persists. Replace the ECU | ||
| 114 | P1259 | P1259 - Rail pressure control - Trim high and flow high | Perform diagnostics on the IMV (Fault chart of P0251). In case of electrical problem perform necessary repairs | Perform the diagnostics on the HP sensor to find faults P0192 and P0193. Do necessary repairs if the problem is with HP sensor | Check the LP circuit. Refer LP check procedure. Perform the neccesary repairs in case of any problem | Check the HP circuit. Refer HP check procedure. Perform neccesary repairs in case of any problem | Check the Injector. Perform neccesary repairs in case of any problem | Check the HP pump. Perform neccesary repairs in case of any problem | If the problem still persists. Replace the ECU | ||
| 115 | P1286 | P1286 - Cylinder 1 Injector - resistance too low | Switch off the ignition.wait for ten seconds.Remove the injector and check the injector connection.Connect it properly again. The problem should vanish after the reconnection, If still problem persists identify the defective part and perform the neccesary repairs. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | If the problem still persists. Replace the Injector and check if the problem is solved | If the problem still persists. Replace the ECU and check if the problem is solved | ||||
| 116 | P1287 | P1287 - Cylinder 1 Injector - resistance too high | Switch off the ignition.wait for ten seconds.Remove the injector and check the injector connection.Connect it properly again. The problem should vanish after the reconnection, If still problem persists identify the defective part and perform the neccesary repairs. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | If the problem still persists. Replace the Injector and check if the problem is solved | If the problem still persists. Replace the ECU and check if the problem is solved | ||||
| 117 | P1288 | P1288 - Cylinder 2 Injector - resistance too low | Switch off the ignition.wait for ten seconds.Remove the injector and check the injector connection.Connect it properly again. The problem should vanish after the reconnection, If still problem persists identify the defective part and perform the neccesary repairs. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | If the problem still persists. Replace the Injector and check if the problem is solved | If the problem still persists. Replace the ECU and check if the problem is solved | ||||
| 118 | P1289 | P1289 - Cylinder 2 Injector - resistance too high | Switch off the ignition.wait for ten seconds.Remove the injector and check the injector connection.Connect it properly again. The problem should vanish after the reconnection, If still problem persists identify the defective part and perform the neccesary repairs. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | If the problem still persists. Replace the Injector and check if the problem is solved | If the problem still persists. Replace the ECU and check if the problem is solved | ||||
| 119 | P1290 | P1290 - Cylinder 3 Injector - resistance too low | Switch off the ignition.wait for ten seconds.Remove the injector and check the injector connection.Connect it properly again. The problem should vanish after the reconnection, If still problem persists identify the defective part and perform the neccesary repairs. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | If the problem still persists. Replace the Injector and check if the problem is solved | If the problem still persists. Replace the ECU and check if the problem is solved | ||||
| 120 | P1291 | P1291 - Cylinder 3 Injector - resistance too high | Switch off the ignition.wait for ten seconds.Remove the injector and check the injector connection.Connect it properly again. The problem should vanish after the reconnection, If still problem persists identify the defective part and perform the neccesary repairs. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | If the problem still persists. Replace the Injector and check if the problem is solved | If the problem still persists. Replace the ECU and check if the problem is solved | ||||
| 121 | P1292 | P1292 - Cylinder 4 Injector - Resistance too low | Switch off the ignition.wait for ten seconds.Remove the injector and check the injector connection.Connect it properly again. The problem should vanish after the reconnection, If still problem persists identify the defective part and perform the neccesary repairs. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | If the problem still persists. Replace the Injector and check if the problem is solved | If the problem still persists. Replace the ECU and check if the problem is solved | ||||
| 122 | P1293 | P1293 - Cylinder 4 Injector - Resistance too high | Switch off the ignition.wait for ten seconds.Remove the injector and check the injector connection.Connect it properly again. The problem should vanish after the reconnection, If still problem persists identify the defective part and perform the neccesary repairs. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | If the problem still persists. Replace the Injector and check if the problem is solved | If the problem still persists. Replace the ECU and check if the problem is solved | ||||
| 123 | P1526 | P1526 - High speed fan control - open circuit | Check the fan control relay connection. If there is some problem in the connection perform the necessary repair. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem persists, Replace the relay and start the actuator test | If the problem still persists, Replace the ECU | ||||
| 124 | P1560 | P1560 - Battery Voltage Signal - A/D converter | Check the battery voltage with the ignition switch on. If the voltage is too low then recharge the battery | Check whether the battery terminal's are connected properly and they are tight. If not proper do the necessary repair | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the charging circuit. In case of any problems in charging do the necessary repair | If problem still persists, Replace the ECU | ||||
| 125 | P1571 | P1571 - Brake safety signal fault | Check switch connection. If connection problem, do necessary rectification | Check 12V switch supply. Check continuity and corresponding fuse | Check contact functionality. If contact problem do necessary repair. Otherwise replace brake switch | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem still persists, Replace the ECU | |||
| 126 | P1572 | P1572 - Brake light signal fault | Check switch connection. If connection problem, do necessary rectification | Check 12V switch supply. Check continuity and corresponding fuse | Check contact functionality. If contact problem do necessary repair. Otherwise replace brake switch | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem still persists, Replace the ECU | |||
| 127 | P1600 | P1600 - Watchdog interference on injector cut off signal | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | If Problem persists. Replace the ECU | |||||||
| 128 | P1601 | P1601 - CPU or CPU clock | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | If Problem persists. Replace the ECU | |||||||
| 129 | P1602 | P1602 - TPU or TPU clock | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | If Problem persists. Replace the ECU | |||||||
| 130 | P1603 | P1603 - ECU RAM - CODE | Check the ECU Earth, Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | If Problem persists, Replace the ECU | |||||||
| 131 | P1604 | P1604 - ECU RAM - CALIBRATION | Check the ECU Earth, Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | If Problem persists, Replace the ECU | |||||||
| 132 | P1605 | P1605 - ECU RAM | Check the ECU Earth, Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | If Problem persists, Replace the ECU | |||||||
| 133 | P1606 | P1606 - Non Volatile memory - Can or KW | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | If Problem persists, Replace the ECU | |||||||
| 134 | P1607 | P1607 - Watchdog - Injector cutoff impossible | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | If Problem persists, Replace the ECU | |||||||
| 135 | P1608 | P1608 - Watchdog - Injector unlock during startup | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | If Problem persists, Replace the ECU | |||||||
| 136 | P1614 | P1614 - Non volatile memory - I2C, MDP | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | Check I2C values are present in ECU. If all values read 80, enter correct I2C value | If problem persists. Replace ECU | ||||||
| 137 | P1615 | P1615 - Non volatile memory - configuration | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | Check I2C values are present in ECU. If all values read 80, enter correct I2C value | If problem persists. Replace ECU | ||||||
| 138 | P1616 | P1616 - Non volatile memory - rail pressure | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | Check I2C values are present in ECU. If all values read 80, enter correct I2C value | If problem persists. Replace ECU | ||||||
| 139 | P1617 | P1617 - Non volatile memory - SMC cut off | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | Check I2C values are present in ECU. If all values read 80, enter correct I2C value | If problem persists. Replace ECU | ||||||
| 140 | P1618 | P1618 - Cylinder 2-3 injector HSD | Check the Injector connections. If there is some problem in the connection perform the necessary repair. | Ign off,Disconnect the injector and check for the fault and switch on the ignition | Ignition off.Connect another injector and key on the ingition.Write the corresponding new I2C to the ECU | Ignition off.Connect another injector and key on the ingition.Write the corresponding new I2C to the ECU | Replace the ECU | ||||
| 141 | P1619 | P1619 - Cylinder 2-3 injector HSD | Check the Injector connections. If there is some problem in the connection perform the necessary repair. | Ign off,Disconnect the injector and check for the fault and switch on the ignition | Ignition off.Connect another injector and key on the ingition.Write the corresponding new I2C to the ECU | Ignition off.Connect another injector and key on the ingition.Write the corresponding new I2C to the ECU | Replace the ECU | ||||
| 142 | P1620 | P1620 - Non volatile memory - SC | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | Do fan actuator test. If test fails, replace ECU | If problem persists, Replace ECU | ||||||
| 143 | P1621 | P1621 - Non volatile memory - Fault manager | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | Do fan actuator test. If test fails, replace ECU | If problem persists, Replace ECU | ||||||
| 144 | P1622 | P1622 - Non volatile memory | Check the ECU Earth. Check whether the ECU earth is proper.( Check star washer, check whether the earthing is not fully covered by Body paint) | Do fan actuator test. If test fails, replace ECU | If problem persists, Replace ECU | ||||||
| 145 | P1641 | P1641 - 5v supply (vext 1) - A/D converter | Check the connection of sensors supplied by vext 1and vext 2 (air flow meter, boost pressure sensor, boost temperature sensor, pedal sensor, cam sensor) . Check the individual connection.Correct in case of any problem. | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the electrical continuity and insulation of the lines of all the sensors supplied by vext1 and vext2. Perform neccesary repair in case of any line problem | Apply the diagnostic charts to the sensors supplied by vext1 and vext2 | ||||
| 146 | P1646 | P1646 - Air conditioning relay control - open circuit | Check the compressor control relay connection. If there is some problem in the connection perform the necessary repair. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem persists. Replace the relay and start the actuator test | If the problem still persists, Replace the ECU | ||||
| 147 | P1650 | P1650 - Check Engine Lamp | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check instument cluster | ||||||
| 148 | P1651 | P1651 - 5v supply (vext 2) - A/D converter | Check the connection of sensors supplied by vext 1and vext 2 (air flow meter, boost pressure sensor, boost temperature sensor, pedal sensor, cam sensor) . Check the individual connection.Correct in case of any problem. | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the electrical continuity and insulation of the lines of all the sensors supplied by vext1 and vext2. Perform neccesary repair in case of any line problem | Apply the diagnostic charts to the sensors supplied by vext1 and vext2 | ||||
| 149 | P1678 | P1678 - Glowplug driver fault - open circuit | Check connection of glowplug relay. If connection problem, do necessary repair | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If problem persiste, replace glowplug relay | If problem persists, Replace ECU | ||||
| 150 | P1679 | P1679 - Glowplug driver fault - short circuit | Check connection of glowplug relay. If connection problem, do necessary repair | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If problem persiste, replace glowplug relay | If problem persists, Replace ECU | ||||
| 151 | P1680 | P1680 - Glowplug driver fault - Short to GND | Check connection of glowplug relay. If connection problem, do necessary repair | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If problem persiste, replace glowplug relay | If problem persists, Replace ECU | ||||
| 152 | P1685 | P1685 - ECU supply control - Relay Open | Check the supply relay connections. If there is some problem in the connection perform the necessary repair. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out .If any electrical isolation is found do the necessary repair | Replace the Relay | Replace the ECU | ||||
| 153 | P1691 | P1691 - Low speed fan control - open circuit | Check the fan control relay connection. If there is some problem in the connection perform the necessary repair. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem persists. Replace the relay and start the actuator test | If the problem still persists. Replace the ECU | ||||
| 154 | P1693 | P1693 - Fan2 control - open circuit | Check the fan control relay connection. If there is some problem in the connection perform the necessary repair. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | If the problem persists. Replace the relay and start the actuator test | If the problem still persists. Replace the ECU | ||||
| 155 | P1697 | P1697 - 2.5V sensor Supply 2Aux fault - Low | Check the connection of sensors supplied by vext 1and vext 2 (air flow meter, boost pressure sensor, boost temperature sensor, pedal sensor, cam sensor) . Check the individual connection.Correct in case of any problem. | Sensor Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the electrical continuity and insulation of the lines of all the sensors supplied by vext1 and vext2. Perform neccesary repair in case of any line problem | Apply the diagnostic charts to the sensors supplied by vext1 and vext2 | ||||
| 156 | P2009 | P2009 - Swirl actuator - short to ground | Swirl actuator Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | If problem still persists. Replace Swirl actuator | If the problem still persists, Replace the ECU | ||||
| 157 | P2010 | P2010 - Swirl actuator - short to Vbatt | Swirl actuator Connection. Remove the Sensor - Check for oxidation - rust, clean and fit it properly again. | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | If problem still persists. Replace Swirl actuator | If the problem still persists, Replace the ECU | ||||
| 158 | P2015 | P2015 - Swirl feedback fault | Erase fault. Key off and wait for 15 seconds. Key on and check | If fault persists, replace ECU | |||||||
| 159 | P2141 | P2142 - Intake throttle actuator fault - Short to ground | Check the Intake throttle vacuum solenoid valve connection. Perform the necessary repairs if the problem is with the connection | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | If problem still persists. Replace Modulator / VSV | If the problem still persists, Replace the ECU | ||||
| 160 | P2142 | P2142 - Intake throttle actuator fault - Short to VBatt | Check the Intake throttle vacuum solenoid valve connection. Perform the necessary repairs if the problem is with the connection | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | If problem still persists. Replace Modulator / VSV | If the problem still persists, Replace the ECU | ||||
| 161 | P2147 | Injector Bank 1 fault (electrical) - Low | Check injector connections for open or short circuit | Disconnect injectors and key on. If problem still present check wiring harness connections | If fault dissapears, clear memory and reconnect injectors one by one | If problem appears on connecting any injector, replace injector | If problem repeats, perform previous steps on other injectors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1) Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | ||
| 162 | P2148 | Injector Bank 1 fault (electrical) - High | Check injector connections for open or short circuit | Disconnect injectors and key on. If problem still present check wiring harness connections | If fault dissapears, clear memory and reconnect injectors one by one | If problem appears on connecting any injector, replace injector | If problem repeats, perform previous steps on other injectors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1) Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | ||
| 163 | P2150 | Injector Bank 2 fault (electrical) - Low | Check injector connections for open or short circuit | Disconnect injectors and key on. If problem still present check wiring harness connections | If fault dissapears, clear memory and reconnect injectors one by one | If problem appears on connecting any injector, replace injector | If problem repeats, perform previous steps on other injectors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1) Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | ||
| 164 | P2151 | Injector Bank 2 fault (electrical) - High | Check injector connections for open or short circuit | Disconnect injectors and key on. If problem still present check wiring harness connections | If fault dissapears, clear memory and reconnect injectors one by one | If problem appears on connecting any injector, replace injector | If problem repeats, perform previous steps on other injectors | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1) Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in sensor or connector pins. If any electrical isolation is found replace the wiring harness and check for the fault | ||
| 165 | P2269 | P2269 - Water in fuel detected | Drain Sedimenter contents in a bowl and look for water presence in diesel. If water is present, drain complete fuel from sedimenter and filter | Check electrical short circuit in wiring from water sensor to ECU. If short circuit is found, rectify the problem | If problem persists, Replace sensor | If problem still persists, Replace wiring harness | If problem still persists, Replace ECU | ||||
| 166 | P2299 | P2299 - Accelerator pedal - stuck - correlation with brake pedal | Check whether the accelerator pedal is free to move. If the pedal is jammed replace the Pedal module and recheck | Check the brake switch setting . If the problem is with the setting perform the neccesary repairs. | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | Check the electrical continuity and insulation of line connected to terminal (2) pin 58 of the ECU. If the problem is with the line perform neccesary repairs. | If problem still persists. Replace accelerator pedal | If the problem still persists. Replace the Brake switch | If the problem still persists. Replace The ECU | ||
| 1 | LP CHECK | Check tank for sufficient quantity of fuel. If tank is empty, fill diesel and check (Do not go by the dash board indication. Check physically) | Check hand priming pump (state & functionality). If priming pump is not getting hard, check for fuel leaks / air entry | Visually check low pressure lines for leakage, confirmity, connections. If LP line problem, rectify | Check inlet and outlet connection correctness. If found problem, correct | Check tank strainer for contamination / air entry. Clean the strainer / fix air entry problem | Check venting of fuel tank. Open the fuel tank cap and run vehicle to check | Check filter for contamination. Drain filter and sedimenter and if heavy contamination is present, replace both. | |||
| 2 | HP CHECK | Perform High Pressure diagnostic method as indicated by Launch team. Do necessary repair after problem is detected | |||||||||
| 3 | INJECTOR CONNECTION CHECK | Check ECU Connection. 1 ) Key off 2) Remove the ECU Connector 3) Connect ECU connector Properly 4) Key on and Read the faults | 1)Check electrical open circuit 2) Check for electrical short circuit 3) Check for any Terminal back out in Injector or connector pins. If any electrical isolation is found repair the wiring harness and check for the fault | Does the problem persists, Replace the ECU |