Test C: The Courtesy Lamps Stay On Continuously

PINPOINT TEST C: THE COURTESY LAMPS STAY ON CONTINUOUSLY

Normal Operation
When any door or the liftgate is opened, the ajar switch or the liftgate/trunk module (LTM) opens the circuit to the smart junction box (SJB). When the instrument panel dimmer switch is rotated to the dome detent ground is supplied on circuit CLN28 (GN/BU) to the SJB. The SJB monitors the ajar circuits and the dome input circuit. Based on the inputs, the SJB supplies voltage to the courtesy lamps on circuit VLN33 (GY/VT).







This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Instrument panel dimmer switch
- Ajar switch
- Liftgate ajar switch
- Liftgate glass ajar switch
- LTM
- SJB

C1-C2:

C2-C5:

C6-C8:

C9-C10:

C11-C14:

C14-C16:

C16-C18:

C18-C20: