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Home >> Toyota >> 2004 >> Highlander Base, 3.3 P, AWD >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System - Diagnostics >> DTC B1221/21 Power Window Switch Circuit On Driver Door >> Circuit Description
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Circuit Description

This DTC is output when any switch of the power window regulator master switch assy (door ECU) is ON.

POWER WINDOW REGULATOR MASTER SWITCH DTC

DTC No. DTC Detecting Condition Trouble Area
B1221/21 Any switch of the power window regulator master switch is ON Power window regulator master switch assy (door ECU)
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