Action Taken When the DTC Sets

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

If a short to ground is present on the liftgate lock relay control circuit, the liftgate lock relay will be energized and the liftgate lock actuator will be held in the lock position and will not unlock.
If an open condition is present on the liftgate lock relay control circuit, the liftgate will unlock but not lock.
The BCM will send a class 2 message to the driver information center (DIC) indicating that a fault has been detected and the DIC will display REPLACE LIFTGATE FUSE.