125000608 - K62 ABS AND HANDBRAKE WARNING LIGHTS BOTH ON

The handbrake lever is released
The handbrake warning light also indicates that the brake fluid level is low and, if it is on at the same time as the ABS warning light, the malfunction of the EBD system. A parking brake warning light activation command is sent by the switch on the lever to the Body Computer Node, which makes it available to the Instrument Panel Node via the B-CAN
Results of the tests
1PRELIMINARY CHECKSAll OKProblems metOperation

Connect the EXAMINER diagnostic equipment and check the CAN NETWORK INFORMATION:

  • For inactive control units
  • For control units with errors
  • For control units with CAN errors
Continue to Step 2Presence of faults in the CANContinue as instructed by the tester
Impossible to converse with the Body ComputerContinue to Step 8
2CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Keeping the diagnostic equipment connected, check that there are no CAN errors at the BRAKE NODEContinue to Step 2Presence of C-CAN faultsContinue to Step 10
3CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Using the Examiner check, in the Instrument Panel Node ambient, that there are no errors and the following parameters are present.Continue to Step 4There are errorsContinue in accordance with the instructions for the diagnostic equipment
4ELECTRIC POWER SUPPLY CHECKAll OKProblems metOperation
Check that the Instrument Panel Node electrical power supply is correct.Continue to Step 5Positive and/or earth electrical power supply fault.Replace the defective component (if a fuse is involved, search for the cause of the problem)
5CHECK ELECTRICAL CONNECTIONSAll OKProblems metOperation
Check the electrical connections between the Body Computer and the Instrument Panel, in particular that each individual pin is correctly connected.Continue to Step 6Electrical connections not working.Restore damaged electrical connections.
6CHECK WITH ACTIVE DIAGNOSISAll OKProblems metOperation
With the Examiner in the Instrument Panel Node ambient, check, in active diagnosis, that the failure warning lights are correctly activatedContinue to Step 7The warning lights do not flashReplace the instrument panel Op.    Op. 5560B11 ANALOGUE CONTROL PANEL - R+R OR REPLACE
7CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Using the Examiner check, in the Body Computer Node ambient, that there are no errorsContinue to Step 10Impossible to connect with the Body Computer control unit.Continue to Step 8
There are errorsContinue in accordance with the instructions for the diagnostic equipment
8ELECTRIC POWER SUPPLY CHECKAll OKProblems metOperation
Check that the Body Computer Node electrical power supply is correctContinue to Step 9Positive and/or earth electrical power supply fault.Replace the defective component (if a fuse is involved, search for the cause of the problem)
9CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Using the Examiner, check the possibility of connecting with the Body Computer NodeContinue to Step 7Impossible to connect with the Body Computer control unit.Replace the Body Computer Op.    Op. 5505A32 BODY COMPUTER - R R
10CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisThe fault persistsReplace the Body Computer Op.    Op. 5505A32 BODY COMPUTER - R R