Power Window Control System

This system uses the multiplex communication system, so check diagnosis system of the multiplex communication system before you proceed with troubleshooting.

PROBLEM SYMPTOMS TABLE - POWER WINDOW CONTROL SYSTEM

Symptom

Suspect Area

All the power windows do not operate. (Power door lock system is normal.)

POWER MAIN Relay
Driver Door ECU (Power Window Master Switch)
Body ECU
Wire Harness

Only the driver's window does not operate.

Power Window Motor
Power Window Pulse Sensor Circuit
Power Window Limit Switch Circuit
Driver Door ECU (Power Window Master Switch)

"Window lock function" does not operate.

Driver Door ECU (Power Window Master Switch)

Only the rear LH window does not operate.

Power Window Motor
Power Window Switch
Body ECU

Only the rear RH window does not operate.

Power Window Motor
Power Window Switch
Body ECU

Only the front passenger's window does not operate.

Power Window Motor
Power Window Pulse Sensor Circuit
Power Window Limit Switch Circuit
Passenger Door ECU

The Key related power window operations do not operate with driver side door key cylinder.
(Master switch operation is normal.)

Door Key Lock and Unlock Switch Circuit
Driver Door ECU (Power Window Master Switch)

" Auto up " or" Auto down " does not operate. ⁽¹⁾

Power Window Pulse Sensor Circuit
Power Window Limit Switch Circuit
Driver Door ECU (Power Window Master Switch)

⁽¹⁾

"Auto up" or "Auto down" may not function when the manual switch is pressed and held for 2 sec. or more with the window glass fully open or closed. In this case, by performing a sequence of the window glass operations (full open, fully close and then half open), the function can be restored. If not, replace the driver door ECU or passenger door ECU.