Test D: The Interior Lamps Do Not Turn On With One Door Open

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

D1:

D1-D2:

D2-D4:

D4-D5:

Normal Operation
The instrument cluster monitors the door ajar switch status on circuits 159 (RD/PK), 1034 (BK/WH) and 628 (WH). The door ajar switches supply a ground through the switch contacts to circuit 57 (BK). When the instrument cluster detects a door ajar input, the instrument cluster then energizes both the battery saver relay and interior lamp relay. When the relays are energized, voltage is supplied to circuit 53 (BK/LB) for the interior lamps.

Possible Causes
- Circuit 57 (BK) open
- Circuit 159 (RD/PK) open
- Circuit 628 (WH) open
- Circuit 1034 (BK/WH) open
- Instrument cluster
- Door ajar switch