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Home >> Lexus >> 2003 >> GX 470 >> Repair and Diagnosis >> Body & Frame >> Windows >> Power Window Control System - Diagnosis >> DTC B1231 Jam Protection Limit Switch Circuit On Driver Door, DTC B1232 Jam Protection Pulse Switch Circuit On Driver Door >> Circuit Description
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Circuit Description

The power window master switch monitors the condition of the power window motor to detect the position of the door glass by using pulse signals output from the 2 pulse sensors in the power window motor.

DTC DETECTION CONDITION

DTC No. DTC Detection Condition Trouble Area
B1231
B1232		 Pulse sensor circuit in power window motor malfunctions
  • Power window regulator motor assy LH (Driver side)
  • Wire harness
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