198001749 - I002 PARKING LIGHTS NOT WORKING

The parking lights do not work under any circumstances.
The switching on signal for the parking lights (side lights and the no. plate lights) is supplied directly by the Body Computer Node.

The driver turns on the parking lights using the steering column switch unit. With the ignition OFF, the side lights are activated:

  • steering column switch unit in neutral position, all the side lights come on
  • steering column switch unit turned to the left or right, all the left or right side lights respectively come on
Test results
0PRELIMINARY CHECKAll OKProblems encounteredOperation

Check whether the side lights come on as follows when the ring nut and the lights control lever on the steering column switch unit are activated:

  • Ring nut on side lights and steering column switch unit in neutral position: all the lights
  • Ring nut on side lights and steering column switch unit turned to the left: left lights
  • Ring nut on side lights and steering column switch unit turned to the right: right lights
End of diagnosisThe side lights do not come onMove on to Step 1
1CHECK ON OPERATION OF SIDE LIGHTSAll OKProblems encounteredOperation
Turn the key to the ON position, operate the ring nut on the steering column switch unit and check that the side lights come on correctlyMove on to Step 2The side lights do not come onProceed as instructed    See table I001 SIDE LIGHTS/NO. PLATE LIGHTS NOT WORKING
2CHECK USING DIAGNOSTIC EQUIPMENT.All OKProblems encounteredOperation
Connect the Examiner to the diagnostic socket and check that there are no faults in the Body Computer NodeMove on to Step 3Presence of faults.Proceed as instructed by the diagnostic tester
3CHECK USING DIAGNOSTIC EQUIPMENT.All OKProblems encounteredOperation
Keeping the Examiner connected to the diagnostic socket, check the operation of the lamps in active diagnosisMove on to Step 4No lights come onReplace body computer    Op. 5505A35 MAIN BODY COMPUTER/JUNCTION UNIT - R.R.
No lights come onReplace the bulb    Op. 5540B26 BULB (ONE) FOR SIDE LIGHT FOR ONE HEADLAMP/LIGHT CLUSTER, L/H OR R/H - R+R
No lights come onReplace the bulb    Op. 5540A50 BULB FOR REAR LIGHT CLUSTER (ONE), LEFT OR RIGHT - REPLACE
4CORRECT OPERATION CHECKAll OKProblems encounteredOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsReplace the steering column switch unit    Op. 5550A10 STALK UNIT ASSEMBLY - R+R