C1783
DTC C1783/83 Door Courtesy Switch CircuitDESCRIPTION
DTC Detecting Condition:
The door courtesy light switch turns on when the door is opened and turns off when the door is closed. The signal is sent from the body ECU and the back door ECU into the DOOR terminal of the suspension control ECU when all the doors are open.
Wiring Diagram:
Step 1:
Step 2-3:
INSPECTION PROCEDURE