Test G: The Liftgate Latch Release Is Inoperative/Does Not Operate Correctly

PINPOINT TEST G: THE LIFTGATE LATCH RELEASE IS INOPERATIVE/DOES NOT OPERATE CORRECTLY

Normal Operation
The SJB does not release the liftgate latch unless the doors have been unlocked electronically.

The SJB sends a voltage signal to the liftgate latch release switch through circuit CPL45 (BN). When the switch is activated, the signal is routed to ground through circuit GD149 (BK/GY). When the SJB detects a request from the liftgate release switch, the SJB provides voltage through circuit CPL10 (BN/WH) to the liftgate latch release motor (integral to the liftgate latch). Ground for the liftgate latch is provided through circuit GD182 (BK/GY).

The signal circuit CPL45 (BN) and the ground circuit GD149 (BK/GY), both change to CPL45 (LG) in the applique jumper harness.

DTC B2666 (Liftgate Release Switch Circuit Failure) - is a continuous and on-demand DTC that sets when the SJB detects a short to ground on the liftgate release switch input circuit. This DTC may also set if the liftgate release switch is pressed for longer than 2 minutes.

DTC B273A (Liftgate Release Output Circuit Shorted to Ground) - is a continuous DTC that sets when the SJB detects a short to ground on the liftgate latch release output circuit.

DTC B273B (Liftgate Release Output Circuit Open or Shorted to Battery Voltage) - is a continuous and on-demand DTC that sets when the SJB detects an open or short to voltage on the liftgate latch release output circuit.

This pinpoint test is intended to diagnose the following:
- Wiring, terminals or connectors
- Liftgate latch release switch
- Liftgate latch
- SJB

G1-G5:

G5-G7:

G7-G9:

G9-G11:

G11-G13:

G14: