Diesel Data: Automotive Repair

Illumination (Door Courtesy Switch Signal) Circuit

CIRCUIT DESCRIPTION

Receiving the courtesy signal from either of the door ECU, the passenger side J/B ECU makes the front personal light, interior right rear light, center console spot light, foot light, inside handle illumination and ignition key cylinder light come on.




Installation Function List:

Wiring Diagram:






Step 1 - 3:




INSPECTION PROCEDURE