M01 Front window winder not working
- Make
- Alfa Romeo
- Model
- 147 Factory Service Manual
- Year
- 2000–2002
- Section
- Window winders › M01 Front window winder not working
M01 Front window winder 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
| Step | Test procedure | Result | Action |
|---|---|---|---|
| 0 | PRELIMINARY CHECKS Check that there are no obstacles preventing the travel of the window Operating the switches, check that the electric windows fail to work in all conditions (manual and/or automatic operation) | OK | |
| There are obstacles |
End of diagnosis | ||
| The electric windows are not working |
End of diagnosis | ||
| 1 | CHECK ON CONTROL UNIT SUPPLY (Driver's Door Node) With diagnostic equipment (Examiner) - CAN line - check whether there are errors in the control unit | OK | |
| It is not possible to dialogue with the control unit |
End of diagnosis | ||
| Right and left motor line found to have short circuit/broken circuit |
End of diagnosis | ||
| 2 | CHECK MOTOR OPERATION Disconnect the motor wiring and check operation with direct supply | OK | |
| Motors do not work |
End of diagnosis | ||
| 3 | CONTROL UNIT CHECK Check correct operation of control unit | OK | |
| Fault persists |
End of diagnosis | ||
| 4 | CHECK ON CORRECT OPERATION Check that the fault is no longer present | OK | Incorrect selection of diagnostic procedure |
| Fault persists | Incorrect selection of diagnostic procedure |
Parts & tools for this job For 2000 Alfa Romeo 147
- TOOLTrim removal tool kitSearch: trim removal tool kit
- PARTTouch-up paintSearch: Alfa Romeo touch up paint
- PARTPanel clip assortmentSearch: Alfa Romeo panel clips assortment
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