Test A: The Courtesy Lamps Are Inoperative

PINPOINT TEST A: THE COURTESY LAMPS ARE INOPERATIVE

Normal Operation
The central junction box (CJB) fuse 18 (15A) provides power through circuit 54 (LG/YE) to the lighting control module (LCM). The driver door module (DDM) monitors the LH front door ajar switch on circuit 867 (DB), and the remaining door ajar switches on circuit 627 (BK/OG). The door ajar switches provide a path to ground through circuit 57 (BK), indicating an open door. The DDM then signals the LCM to supply power to the courtesy lamps on circuit 53 (BK/LB).

This pinpoint test intended to diagnose the following
- Fuse
- Wiring, terminals or connectors
- LCM

A1-A5:

A6-A7: