Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| B+ | U0121, U0129, U1833 | U0121, U0129, U1833 | - | - |
| Ignition | U0121, U0129, U1833 | U0121, U0129, U1833 | - | - |
| Accessory Wake-Up Serial Data (circuit 5985) | U1814 | U0121, U0129, U1833 | - | - |
| Serial Data Communication Enable (circuit 5986) | U2099 | U0121, U0129, U1833 | - | - |
| Chassis High Speed GMLAN Serial Data [ + ] (circuit 6105) | U0077* | U0077* | U0077* | - |
| Chassis High Speed GMLAN Serial Data [ - ] (circuit 6106) | U0077* | U0077* | U0077* | - |
| Ground | - | U0121, U0129, U1833 | - | - |
| * Other DTCs may set with this fault. | ||||