Diagnostic Fault Information
WARNING: This page is about a different car, the 2022 Cadillac CT4. 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 |
|---|---|---|---|---|
| B+ | U221A | U221A | - | - |
| Ignition | U221A | U221A | - | - |
| Private Serial Data Active Safety CAN Bus [+] Serial Data (circuit 8977) | U221A | U221A | U221A | - |
| Private Serial Data Active Safety CAN Bus [-] Serial Data (circuit 8976) | U221A | U221A | U221A | - |
| Ground | - | U221A | - | - |