Component Testing

WARNING: This page is about a different car, the 2013 GMC Acadia, 2013 Chevrolet Traverse, and 2013 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.

Liftgate Latch Assembly

Ignition OFF, disconnect the harness connector at the liftgate latch assembly.
Install a A5 fused jumper wire between the control terminal 1 and 12V. Briefly install a jumper wire between the ground terminal 3 and ground. Verify the liftgate latch assembly activates.
- If the actuator does not perform as specified, replace the liftgate latch assembly.

Exterior Liftgate Control Switch

Ignition OFF, disconnect the harness connector at the exterior liftgate control switch.
Test for infinite resistance between the signal terminal 1 and the ground terminal 2 with the switch in the open position.
- If not the specified value, replace the exterior liftgate control switch.
Test for less than 2 Ω between the signal terminal 1 and the ground terminal 2 with the switch in the closed position.
- If greater than the specified range, replace the exterior liftgate control switch.

Relay Test

Ignition OFF, disconnect the L/GATE relay.
Test for 60-200 Ω between terminals 85 and 86.
- If not within the specified range, replace the relay.
Test for infinite resistance between the following terminals:
- 30 and 86
- 30 and 87
- 30 and 85
- 85 and 87
- If not the specified value, replace the L/GATE relay.
Install a 3A fused jumper wire between relay terminal 85 and 12V. Install a jumper wire between relay terminal 86 and ground. Test for less than 2 Ω between terminals 30 and 87.
- If greater than the specified range, replace the L/GATE relay.