Test A: The Courtesy Lamps Are Inoperative
PINPOINT TEST A: THE COURTESY LAMPS ARE INOPERATIVENormal Operation
Power is supplied to the courtesy lamps through the smart junction box (SJB) fuse 9 (15A). When any door or the liftgate is opened, the ajar switch opens, signaling the SJB. The SJB monitors the ajar circuits and IKT input. Based on the input status, the SJB supplies voltage to the courtesy lamps on circuit VLN33 (GY/VT). Ground is supplied through circuits GD133 (BK) and GD147 (BK/VT) for the courtesy lamps.
DTC B2A35 (Interior Lighting Output Circuit Open) - is an on-demand DTC that sets when the SJB detects an open from the interior lighting circuit.
DTC B2A36 (Interior Lighting Output Circuit Short To Ground) - is a continuous and on-demand DTC that sets when the SJB detects a short to ground from the interior lighting circuit.
This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- SJB
A1-A2:
