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Home >> Lexus >> 2003 >> GX 470 >> Repair and Diagnosis >> Suspension >> Electronic Suspension >> Electronic Modulated Suspension & Rear Air Suspension System - Diagnosis >> DTC C1783/83: Door Courtesy Switch Circuit >> Circuit Description

Circuit Description

The door courtesy switch assy turns on when the door is opened and turns off when the door is closed. The signal is sent from the multiplex network body ECU into the DOOR terminal of the suspension control ECU when all the doors are open.

DTC

DTC No. DTC Detecting Condition Trouble Area
C1783/83 Door courtesy switch signal does not change.
  • Door courtesy switch assy
  • Back door courtesy switch assy
  • Door courtesy switch circuit
  • Multiplex network body ECU
  • Suspension control ECU
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