WARNING: This page is about a different car, the 2016 GMC Acadia, 2016 Chevrolet Traverse, and 2016 Buick Enclave. However, it is still accessible from the selected car via links, so may be relevant.
Circuit
Short to Ground
Open/High Resistance
Short to Voltage
Signal Performance
Ratchet Switch Signal
1
B153A 08
2
-
1. Liftgate Ajar Indicator Always On 2. Power Liftgate Inoperative