Component Tests and General Diagnostics

Electric window lift inoperative

Cause:
Disconnection and reconnection of the vehicle battery, of the power window module, or of Fuse F33 (electronic power protection) can cause the power window module to shut off, due to power being supplied by the circuit breaker (F56) before power is supplied by Fuse F33.

Correction:
Switch the circuit breaker (F56) off, then on again. Replacement of the power window module is not a remedy.

Procedure:
While other faults could cause the drivers window lift to become inoperative, before beginning any troubleshooting, proceed as follows:

- Switch automatic circuit breaker F56 off, then on again.
Reinitialize the power window module by performing the following sequence:
1. Lower the window glass by pressing the "down" button fully (to second detent) and hold the "down" button for approximately 3 seconds after the window glass is fully down.
2. Raise the window glass by pressing the "up" button fully (to second detent) and hold the "up" button for approximately 3 seconds after the window glass is fully up.
3. Verify operation of the "one-touch" feature.