3022678 - M01 ELECTRIC FRONT WINDOWS / NOT WORKING

With the ignition key in the ON position, when the buttons on the doors are operated, the electric front windows do not work at all.
Results of the tests
0PRELIMINARY CHECKSAll OKProblems metOperation

Verify:

  • Fuses on dashboard and engine compartment junction units.
Continue to Step 1Fuses damagedRenew fuses
1CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Connect the diagnostic equipment (Examiner or Examiner plus) to the diagnostic socket and check:

  • that there are no errors in the Driver's Door Node unit
Continue to Step 2There are errors in the Driver's Door Node unitContinue according to the instructions for the diagnostic equipment
Lack of dialogue with the control unitCheck the Driver's Door Node unit earth and supply See   E3050  ELECTRIC FRONT WINDOWS
2CHECKING WITH DIAGNOSTIC EQUIPMENTAll OKProblems metOperation

Keeping the diagnostic equipment (Examiner or Examiner plus) to the diagnostic socket, check:

  • That there are no errors in the Body Computer control unit
  • The operation of the services relay via active diagnosis of the Body Computer.
Continue to Step 4There are errors in the Body Computer control unitContinue according to the instructions for the diagnostic equipment
Services relay does not workContinue to Step 3
3CHECK SERVICES RELAY ELECTRICAL CIRCUITAll OKProblems metOperation
Check relay supply and earthContinue to Step 4Connections brokenRestore connections See   E3050  ELECTRIC FRONT WINDOWS
Connections correct: Faulty relayReplace services relay
4CHECK ELECTRIC WINDOW DEVICEAll OKProblems metOperation
Check the mechanics and any impediments in the electric window device.Continue to Step 5Electric window device faultyReplace the electric window device Op. 7035J13
Impediments are foundRemove the obstacle and check correct operation
5CHECK ON CORRECT OPERATIONAll OKProblems metOperation
Check that the fault is no longer presentFault persistsSearch for the fault starting from another symptom'