Diagnostic Fault Information
WARNING: This page is about a different car, the 2009 GMC Sierra, 2009 GMC Cab & Chassis Sierra, and 2009 Chevrolet 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 |
| Mode Select A |
P251A |
P251A |
P251A |
P258E, P251A |
| Mode Select B |
P251A |
P251A |
P251A |
P258E, P251A |
| Mode Select C |
P251A |
P251A |
P251A |
P258E, P251A |
| PTO Engine Shutdown Signal |
P251E |
P251F |
P251F |
P251E, P251F |