Diagnostic Fault Information
WARNING: This page is about a different car, the 2008 GMC Sierra, 2008 GMC Cab & Chassis Sierra, 2008 Chevrolet Silverado, and 2008 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 |
| Exhaust Gas Temperature Sensor 1 Signal |
P0545 |
P0546 |
P20E2 |
P0546* |
P20E2 |
| Exhaust Gas Temperature Sensor 1 Low Reference |
- |
P0546 |
P20E2 |
P0546* |
P20E2 |
| *Internal ECM or Sensor damage may occur if the circuit is shorted to B+ |