125000548 - I57 INTERIOR LIGHTS NOT WORKING WITH DOORS UNLOCKED BY REMOTE CONTROL

The interior timed lights work if controlled manually and when the doors are opened, but the time period is not activated when the remote control is operated (the door lock/unlock works normally)
When one of the side doors is opened, the courtesy light is turned on for a period of 3 minutes When the car is unlocked after activation of the remote control, the courtesy light is switched on for a period of 15 seconds, which is interrupted by the ignition ON signal. If the ignition ON signal is present following the opening of a door, the courtesy lights come on.
Results of the tests
1CHECK ON COURTESY LIGHTSAll OKProblems metOperation
Check the condition and function of the courtesy light switchesContinue to Step 2Courtesy light bulb faultyChange the bulb
Front courtesy light faultyRestore or replace the courtesy light Op.    Op. 7040E40 MODULAR FRONT COURTESY LIGHT - R R
Rear courtesy light faultyRestore or replace the courtesy light Op.    Op. 7040E16 REAR COURTESY LIGHT - R+R
2CHECK ON INTERIOR LIGHTING ELECTRICAL CIRCUITAll OKProblems metOperation

Check, in order:

  • connections between courtesy lights and Body Computer;
  • connection to +30 courtesy lights;
  • Courtesy light earth connection See    See E2510 COURTESY LIGHTS
Continue to Step 3Connections not correctRestore the connections See    See E2510 COURTESY LIGHTS
Faulty earth on courtesy lightsRestore the correct earth connection See    See E2510 COURTESY LIGHTS
3CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Connect the diagnostic equipment (Examiner Plus or Smart) to the diagnostic socket.Check that there are no errors in the Body Computer (e.g. remote control receiver not recognized)Continue to Step 4There are errors in the Body ComputerRestore the correct operation. If necessary, replace the Body Computer Op.    Op. 5505A32 BODY COMPUTER - R R
4CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosis.