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 | High Resistance | Open | Short to Voltage | Signal Performance |
|---|---|---|---|---|---|
| EGR 5-Volt Reference Voltage | P0107, P0698, P2564 | P0102, P0401, P046C | P0405 | P0106, P0699 | - |
| EGR Sensor Signal | P0405 | P0101, P0405 | P0405 | P0406, P2457 | - |
| EGR Low Reference | - | P0401, P046C | P0406 | - | - |
| EGR MTR High Control | P0403 | P0401, P046C | P0403 | P0403 | - |
| EGR MTR Low Control | P0403, P046C | P0401, P046C | P0403 | P0403 | - |