Driver Power Window Does Not Operate

DRIVER POWER WINDOW DOES NOT OPERATE

CIRCUIT DISCRIPTION

With the ignition switch ON and the window lock switch NORMAL (except the driver's side), the door ECU monitors a signal via the regulator switch and drives the power window motor.

NOTE: The power window system has a function with large-scale body multiplex communications. First of all, inspect the communication function depending on the "how to proceed with troubleshooting", and check there is no abnormality in the communication system. Then, finally proceed with the troubleshooting. Also, if the power window system has a malfunction in the jam protection function, the AUTO operations are prohibited. Because of this, confirm that the diagnosis code is normal before the troubleshooting.

Wiring Diagram:

Step 1 - 3:

Step 4 - 5:

Step 6:

Step 7:

INSPECTION PROCEDURE