DTC Descriptors
WARNING: This page is about a different car, the 2013 Cadillac XTS. However, it is still accessible from the selected car via links, so may be relevant.
- DTC B3121
-
Keyless Entry Antenna 3 Short to Ground
- DTC B3121
-
Keyless Entry Antenna 3 High Voltage/Open
For symptom byte information, refer to Symptom Byte List .