Diagnostic Fault Information
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, 2009 Chevrolet Silverado, and 2009 Chevrolet Cab & Chassis Silverado. 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+ From 200 A Mega fuse |
U182A* | U182A* | - | |
| PTLAN + 2 circuits at EBCM |
U0074* | U182A* | U0074* | - |
| PTLAN - 2 circuits at EBCM |
U0074* | U182A* | U0074* | - |
| Wake Up Signal circuit 932 |
B137B* | U182A* | U189A* | - |
| * Other modules/DTCs will set with this fault. | ||||