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Home >> Lexus >> 2002 >> SC 430 >> Repair and Diagnosis (Single Page) >> Body & Frame >> Windows >> Power Window Control System - Diagnosis >> DTC B1231/31 Jam Protection Limit Switch Circuit On Driver Door & DTC B1232/32 Jam Protection Pulse Switch Circuit On Driver Door >> Circuit Discretion

Circuit Discretion

This DTC is output when the power window regulator motor assembly malfunctions.

DTC CHART

DTC DTC detecting condition Trouble area
B1231/31 Open in power window regulator motor assembly LH limit switch system
  • Power window regulator motor assembly LH
  • Wire harness
B1232/32 Open or short in power window regulator motor assembly LH pulse sensor system
  • Power window regulator motor assembly LH
  • Wire harness
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