184000499 - K141 MODE BUTTON NOT WORKING

The Instrument Panel Node receives information directly from the 'Mode', '+' and '-' panel
Results of the tests
1CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Connect the Examiner diagnostic equipment and check, in the Instrument Panel Node ambient, that there are no errors and the following parameters are present.Continue to Step 8Impossible to connect with the NQS control unitContinue to Step 2
There are errorsContinue to Step 5
2ELECTRIC POWER SUPPLY CHECKAll OKProblems metOperation
Check that the Instrument Panel Node electrical power supply is correct See E4010 INSTRUMENT PANEL Continue to Step 3Positive and/or earth electrical power supply faultyPositive and/or earth electrical power supply faulty.
3CHECK ELECTRICAL CONNECTIONSAll OKProblems metOperation
Check the wiring/electrical connections for the Instrument Panel Node and between the node and the control panel, in particular that each pin is correctly connected and inserted in its housing.Continue to Step 4Wiring and/or electrical connections not working.Restore the wiring and/or damaged electrical connections.
4CHECK WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Using the Examiner, check whether it is possible to connect with the Instrument Panel Node.Continue to Step 1Impossible to connect with the control unit.Replace the instrument panel control unit Op. 5560B11
5ERRORS CHECKAll OKProblems metOperation

Using the Examiner in the Instrument Panel Node ambient, check that one or more of the following errors is not present:

  • CAN line
  • EEPROM.
End of diagnosisNo additional information and/or BUS off detected.Continue according to the instructions for the diagnostic equipment.
EEPROM faultyReplace the instrument panel control unit Op. 5560B11
6ELECTRICAL CIRCUIT CHECKAll OKProblems metOperation

Check that the following components are working properly:

  • Wiring between node and control panel
  • Control panel See E4010 INSTRUMENT PANEL
Continue to Step 7Wiring faultyRenew the wiring.
Control panel not working properly.Replace the control panel Op. 7040A56
7CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentEnd of diagnosisFault persistsContinue to Step 1