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), which supplies voltage to the courtesy lamps solid-state relay in the SJB. When any door is opened, the ajar switch opens, signaling the SJB. The SJB monitors the ajar circuits, and based on the ajar status, the SJB energizes the solid-state relay supplying voltage to the courtesy lamps on circuit VLN33 (GY/VT). The SJB also monitors the dome defeat output through circuit CLN27 (WH/BN). A short to ground on circuit CLN27 (WH/BN) will cause the courtesy lamps to be inoperative. Ground for the courtesy lamps is supplied through circuit GD182 (BK/GY).
DTC B2A35 (Courtesy Lighting Output Circuit Open) - is an on-demand DTC that sets when the SJB detects an open from the courtesy lighting circuit.
DTC B2A36 (Courtesy 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 courtesy lighting circuit.
This pinpoint test is intended to diagnose the following:
- Fuse
- Wiring, terminals or connectors
- Dimmer switch
- SJB
A1-A3:
A3-A5:
A6-A7:
