2427597 - O05 FRONT SEAT HEIGHT ADJUSTMENT NOT WORKING

When the switch is pressed the seat height adjustment does not work.
Results of the tests
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect the Examiner diagnostic equipment and check for the following at the CAN:

  • inactive control units;
  • control unit errors;
  • control units with errors in CAN line.
Continue to Step 2Faults presentContinue according to the instructions for the diagnostic equipment
2CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Keep the Examiner diagnostic equipment connected and check for errors:

  • at the seat height adjustment control switch;
  • at the seat height adjustment operating relay.
Continue to Step 4Seat height adjustment control switch error.Continue to Step 8
Seat height adjustment operating relay error.Continue to Step 3
3ELECTRICAL CIRCUIT CHECKAll OKProblems metOperation
Check continuity/insulation of the electrical connection between the seat height adjustment operating relay and the driver's position node/passenger position node See E3076 ELECTRICALLY-ADJUSTABLE SEATS.Continue to Step 6Electrical conection broken or not insulated.Restore electrical connection continuity/insulation See E3076 ELECTRICALLY-ADJUSTABLE SEATS.
4CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation
Check that the seat height adjustment motor is working properly using active diagnosis.Continue to Step 8Seat height adjustment motor not working.Continue to Step 5
5ELECTRICAL CIRCUIT CHECKAll OKProblems metOperation
Check continuity/insulation of the electrical connection between the seat height adjustment operating relay and the driver's position node/passenger position node See E3076 ELECTRICALLY-ADJUSTABLE SEATS.Continue to Step 7Electrical conection broken or not insulated.Restore electrical connection continuity/insulation See E3076 ELECTRICALLY-ADJUSTABLE SEATS.
6CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer present.End of diagnosisFault persistsReplace the seat height adjustment operating relay.
7CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer present.End of diagnosisFault persistsReplace the seat height adjustment motor.
8CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer present.End of diagnosisFault persists

Replace:

  • if the driver's seat is involved: driver's position node
  • if the front passenger seat is involved: passegner position node