125000524 - G10 NO ACOUSTIC WARNING FOR HANDBRAKE APPLIED WITH VEHICLE MOVING

When the vehicle is moving, the accidental operation of the handbrake is not indicated by the acoustic signal.
The instrument panel node acquires from the network the signal indicating the status of the handbrake switch and the vehicle speed. If the handbrake is operated and the vehicle speed exceeds 4 km/h, an acoustic signal is emitted.Warning: This function can be enabled/disabled via the MODE +/- keys on the controls switch panel unit. Make sure that the function has not been disabled incorrectly by the user
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation
Connect the Examiner Plus or Smart diagnostic instrument and check, in the active diagnosis environment, that the buzzer is working properlyContinue to Step 1The buzzer is not workingReplace the Instrument Panel Node Op.    Op. 5560B11 ANALOGUE CONTROL PANEL - R+R OR REPLACE
1CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Connect an Examiner and check the handbrake switch status has been correctly downloaded while in parameter modeContinue to Step 3Malfunction in downloading of handbrake switch statusesContinue to Step 2
2ELECTRICAL CONNECTIONS CHECKAll OKProblems metOperation
Check the electrical connections between handbrake switch and Body Computer See    See E4010 INSTRUMENT PANELAlso check that the handbrake switch is not faultyContinue to Step 3Connections faultyRestore the correct connections See    See E4010 INSTRUMENT PANEL
Handbrake switch faultyReplace the handbrake switch Op.    Op. 5550D18 HANDBRAKE ON WARNING LIGHT SWITCH - R+R
3CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect the Examiner and check on the body computer node:

  • that there are no errors on the C-CAN line;
  • that there are no speedometer signal errors.
Continue to Step 4Error in the C-CAN line.Continue following the instructions for the diagnostic equipment
Error found in speedometer signal.Continue according to the instructions inSee table    See table K03 SPEEDOMETER NOT WORKING
4CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Keep the Examiner connected and check the body computer node for:

  • errors in the B-CAN line;
  • errors in the speedometer signal.
Continue to Step 5Error found in the B-CAN line.Continue following the instructions for the diagnostic equipment
Error found in speedometer signal.Continue according to the instructions inSee table    See table K03 SPEEDOMETER NOT WORKING
5ELECTRICAL CONNECTIONS CHECKAll OKProblems metOperation
Check the electrical connections between the instrument panel and Body Computer See    See E4010 INSTRUMENT PANELContinue to Step 6Connections faultyRestore the correct connections See    See E4010 INSTRUMENT PANEL
6CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer present.End of diagnosisThe fault persistsReplace the Body Computer Op.    Op. 5505A32 BODY COMPUTER - R R