Diagnostic Fault Information
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| B+ | U185C | U185C | - | - |
| Ignition | U185C | U185C | - | - |
| Wake-Up Signal | U1814, U2099 | U185C | - | - |
| High Voltage Energy High Speed GMLAN Serial Data (+) | U007A* | U185C | U007A* | - |
| High Voltage Energy High Speed GMLAN Serial Data (-) | U007A* | U185C | U007A* | - |
| Ground | - | U185C | - | - |
| * Scan Tool Does Not Communicate With High Voltage Energy High Speed GMLAN Device | ||||