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Home >> Toyota >> 2003 >> Highlander Limited, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 547 (Power Window Control System - Diagnostics) >> Driver Power Window Does Not Operate >> Circuit Description
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Circuit Description

WARNING: This page is about a different car, the 2004 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.

The power window regulator master switch assy (door ECU) controls the driver side power window by itself and drives the driver side power window motor.

NOTE: The power window system has a function with a large-scale multiplex communication. First of all, inspect the communication function depending on "how to proceed with troubleshooting" and confirm that the communication system has no abnormality. Then finally perform the troubleshooting.
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