Test D: The Courtesy Lamps Do Not Turn on With One Door Open

PINPOINT TEST D: THE COURTESY LAMPS DO NOT TURN ON WITH ONE DOOR OPEN

D1-D4:

D4-D7:

D7-D8:

Normal Operation
When any door is open, the ajar switch opens the circuit to the smart junction box (SJB). In contrast, when the luggage compartment lid is opened, the switch closes the circuit to the SJB. The SJB monitors the ajar circuits, and based on the ajar status, the SJB will supply voltage to the courtesy lamps on circuit CLN26 (BU).

Possible Causes
- Circuit CPL26 (GN/VT) short to ground
- Circuit CPL31 (WH) short to ground
- Circuit CPL36 (GN) short to ground
- Circuit CPL39 (YE) short to ground
- Circuit CPL44 (YE/OG) open
- Circuit GD171 (BK/GY) open
- Door ajar switch
- Luggage compartment lid ajar switch
- SJB