Test E: The Courtesy Lamps Do Not Turn On With The Liftgate Or The Liftgate Glass Open
PINPOINT TEST E: THE COURTESY LAMPS DO NOT TURN ON WITH THE LIFTGATE OR THE LIFTGATE GLASS OPENNormal Operation
When the liftgate or the liftgate glass is opened, the ajar switch or liftgate/trunk (LTM) module opens the circuit to the smart junction box (SJB). The SJB monitors the ajar circuits, and based on the ajar status, the SJB will supply voltage to the courtesy lamps on circuit VLN33 (GY/VT).
- DTC B2721 (Liftgate/Decklid Ajar Output Short to Ground or Open) - is a continuous and on-demand DTC that sets when the power liftgate module detects a short to ground on the liftgate ajar circuit.
This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Liftgate ajar switch
- Liftgate glass ajar switch
- Power liftgate module
- SJB
E1-E5:
E5-E10:
E11-E13:
