Circuit Description

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: Power window system has a function with a 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 the diagnosis code is normal before the troubleshooting.