Diagnostic Fault Information
WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2008 GMC Yukon XL, 2008 GMC Yukon, 2008 Chevrolet Tahoe, 2008 Chevrolet Suburban, and 2008 Chevrolet Avalanche. 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 |
|---|---|---|---|---|
| Ignition Voltage (circuit 948) | U1820*, U189A in HPCM, U1818 in SDGM | U1820*, U189A in HPCM, U1818 in SDGM | - | |
| Ground (circuit 950) | - | U1820*, U189A in HPCM, U1818 in SDGM | - | |
| PTLAN + (circuit 6105) | U0074* | U1820*, U189A in HPCM, U1818 in SDGM | U0074* | - |
| PTLAN - (circuit 6106) | U0074* | U1820*, U189A in HPCM, U1818 in SDGM | U0074* | - |
| * Other modules/DTCs will set with this fault. | ||||