Re-Programming remote transmitters. This one is become more popular and we are being increasingly being asked "how do I re-programme my key fobs on my XJ40". So here are our tried and tested instructions.

1990-92 XJ40 system

Make sure you have the radio security code (if so equipped).

Disconnect negative battery cable.

Reconnect negative battery cable; The security system should start responding with a "beeping" noise.

Press each transmitter so a total of 5 confirmation tones are heard.

Test operation.

Enter the radio code if needed and re-set the clock.

1993-94 XJ40 system

Turn ignition key to the "on" position so that the dash warning lights come on but do not start the car.

Turn security switch "off" found inside the centre console cubby box.

Turn ignition key "off".

Turn security switch back "on".

Cycle security system switch "ON and OFF" rapidly 4 times (within 5 seconds of each other).

Press each transmitter so a total of 5 confirmations tones are heard from the security system.