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+ | U18D2 | U18D2 | - | - |
| Ignition | U18D2 | U18D2 | - | - |
| Powertrain Sensor Bus Enable (circuit 4320) | U100B* | U18D2 | - | - |
| Powertrain CAN Bus [+] Serial Data (circuit 4055) | U0076* | U0076, U18D2* | U0076* | - |
| Powertrain CAN Bus [-] Serial Data (circuit 4054) | U0076* | U0076, U18D2* | U0076* | - |
| Ground | - | U18D2 | - | - |
| * Other DTCs may set with this fault. | ||||