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 |
|---|---|---|---|---|
| BECM B+ (circuit 4240) | U0146* in PSCM | U1888* in HPCM, U0111 in SDGM | - | - |
| BECM Ground (circuit 2751) | - | U1888* in HPCM, U0111 in SDGM | - | - |
| BECM Communication Enable Signal (circuit 5986) | U1888* in HPCM, U2099 in BCM | U1888* in HPCM, U0111 in SDGM | - | - |
| HSGMLAN + (circuit 2500) | 1* | U1888* in HPCM, U0111 in SDGM | 1* | - |
| HSGMLAN - (circuit 2501) | 1* | U1888* in HPCM, U0111 in SDGM | 1* | - |
| HPCM Ignition (circuit 2139) | P2534 | P2534 | U1888* in HPCM, B1453 in SDGM | - |
| * Other modules/DTCs will set with this fault. 1. Scan tool does not communicate with high speed GMLAN device. |
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