3360322 - N46 PARKING DEVICE BUZZER NOT WORKING

The Parking Sensor Node (NSP) receives a reversing signal from the body computer node via the B-CAN line
Results of the tests
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect a tester (Examiner) to the body computer node and check CAN network information:

  • absence of inactive control unit
  • absence of control with error
  • absence of control unit with error in CAN line
Continue to Step 5Control unit with CAN line errorContinue to Step 2
Control unit with CAN line errorContinue according to the instructions for the diagnostic equipment
Control unit with CAN line errorRepair short-circuit - open circuit in a B-CAN line wire
2CHECKING ELECTRICAL EQUIPMENTAll OKProblems metOperation
Check efficiency of the NSP earthContinue to Step 3Faulty earthRenew the wiring See   E3090  PARKING SENSOR
3CHECKING ELECTRICAL EQUIPMENTAll OKProblems metOperation
Check efficiency of the NSP positive power supplyContinue to Step 4Power source inefficientRenew the wiring See   E3090  PARKING SENSOR
4CHECK B-CAN LINEAll OKProblems metOperation
Check that the two NSP B-CAN wires are not brokenContinue to Step 5B-CAN line brokenRestore the connection See   E3090  PARKING SENSOR
5CHECKING ELECTRICAL EQUIPMENTAll OKProblems metOperation
Check the continuity and insulation of the wiring connecting the Buzzer to the NSPContinue to Step 6Wiring short-circuited or circuit openRenew the wiring See   E3090  PARKING SENSOR
6CHECKING BUZZER EFFICIENCYAll OKProblems metOperation
Check the buzzer is working properly.Continue to Step 7Buzzer not workingReplace buzzer See   E3090  PARKING SENSOR
7CHECKING CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentFault persistsChange parking sensor node Op.   5580H10  Search for the fault starting from another symptom'