WARNING: This page is about a different car, the 2016 Cadillac ATS. 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
Signal
B2730 00
1
1
-
Ground
-
1
-
-
1. Interior Rear Compartment Lid Release Switch Inoperative