368

TEST

5. Power Supply

Circuit

6. Ignition Primary Circuit

IGNITION SYSTEM

Trouble-shooting (Cont'd)

TEST METHOD

CONDITIONS

RESULT

ACTION

Positiwe terminal

(Black/white wire)

Voltmeter

SEL773D

1.    Connect voltmeter as illustrated and set to appropriate scalę.

2.    Turn ignition key to "ON" position.

11.5 - 12.5 volts

Below 11.5 volts

Proceed to Step 6.

Check wiring from ignition switch to IC unit.

Negative terminal (Blue wire)

SEL7740

1.    Connect voltmeter as illustrated and set to appropriate scalę.

2.    Ignition key in "ON" position.

11.5-12.5 volts

3elow 11.5 volts

Proceed to Step 8.

Proceed to Step 7.

id ts -

7. Ignition Coil Primary Circuit

n i

>V

8. I.C. Unit Ground Circuit

Resistance: x 1 rangę

EES67

1.    Ignition key in "OFF" position.

2.    Coil wire removed from coil.

3.    Connect ohmmeter as illustrated.

Refer to "Ignition coil resistance".

Ignition coil primary winding O.K.

Check/ignition switch and wiring from ignition switch to coii and IC unit.

Not in the specified vaiue

Faulty ignition coil — replace.

ii

Battery (On vehicle)

pil-

i*JL

1.    Connect voltmeter as illustrated and set to appropriate scalę.

2.    Puli out coil wire from distributor cap and ground it.

3.    Tum key to "START” position and obserye yoltmeter while engine is cranking.

0.5 yolts or less

Morę than 0.5 volts

Replace IC ignition unit assembly.

Check distributor ground, wiring from chassis ground to battery including battery cable connections.

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