312000644 - K066 HANDBRAKE WARNING LIGHT DOES NOT COME ON (WITH HANDBRAKE APPLIED)

The command to switch on the handbrake warning light is sent by the switch on the lever to the Body Computer Node which makes it available on the B-CAN to the Instrument Panel Node
Test results
0PRELIMINARY CHECKSAll OKProblems encounteredOperation
Check that the warning light comes on during the check when the panel is switched onMove on to Step 3The warning light does not come on.Move on to Step 1
1CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Connect the Examiner diagnostic equipment and check at the Instrument Panel Node that the handbrake warning light is working through active diagnosisMove on to Step 2The warning light does not come on / go out on command.Replace the instrument panel    Op. 5560B10 CONTROL PANEL - R+R
2ELECTRICAL SYSTEM CHECKAll OKProblems encounteredOperation

Check:

  • the continuity of the wiring between the handbrake lever switch and the Body Computer.
    See E4010 INSTRUMENT PANEL
Move on to Step 3Wiring broken.Restore correct wiring    See E4010 INSTRUMENT PANEL
3HANDBRAKE SWITCH CHECKAll OKProblems encounteredOperation
Switch operation checkMove on to Step 4Switch defectiveReplace the switch    Op. 5550D18 HANDBRAKE ON WARNING LIGHT SWITCH - R+R
4CHECK USING DIAGNOSTIC EQUIPMENTAll OKProblems encounteredOperation
Using the Examiner, check that the body computer is working properlyEnd of diagnosisBody Computer defective.Replace Body Computer    Op. 5505A32 BODY COMPUTER - R.R