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+ | U1603 | U1603 | - | - |
| Ignition | U1603 | U1603 | - | - |
| CAN 4 Serial Data [+] (circuit 4101) | U0079* | U0079, U1603* | U0079* | - |
| CAN 4 Serial Data [-] (circuit 4100) | U0079* | U0079, U1603* | U0079* | - |
| Ground | - | U1603 | - | - |
| * Other DTCs may set with this fault. | ||||