Diagnostic Fault Information
WARNING: This page is about a different car, the 2007 Pontiac G5 Pursuit, 2007 Pontiac G5, and 2007 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.
Perform the DIAGNOSTIC SYSTEM CHECK - VEHICLE prior to using this diagnostic procedure.
DTC P0641 or P0651
| Circuit | Short to Ground | Open/High Resistance | Short to Voltage | Signal Performance |
|---|---|---|---|---|
| Accelerator Pedal Position (APP) Sensor 1 5-Volt Reference 2 Circuit | P0651 | P2122 | P0651 | - |
| Accelerator Pedal Position (APP) Sensor 2 5-Volt Reference 1 Circuit | P0641 | P2127 | P0641 | - |
| Air Conditioning (A/C) Refrigerant Pressure Sensor 5-Volt Reference 1 Circuit | P0641 | P0532 | P0641 | - |
| Crankshaft Position Sensor 5-Volt Reference 2 Circuit | P0651 | P0335 | P0651 | - |
| Exhaust Camshaft Position Sensor 5-Volt Reference 1 Circuit | P0641 | P0365 | P0641 | - |
| Fuel Tank Pressure (FTP) Sensor 5-Volt Reference 1 Circuit | P0641 | P0452 | P0641 | - |
| Intake Camshaft Position Sensor 5-Volt Reference 1 Circuit | P0641 | P0340 | P0641 | - |
| Manifold Absolute Pressure (MAP) Sensor 5-Volt Reference 1 Circuit | P0641 | P0107 | P0641 | - |
| Throttle Position (TP) Sensor 1 5-Volt Reference 2 Circuit | P0651 | P0122 | P0651 | - |
| Throttle Position (TP) Sensor 2 5-Volt Reference 2 Circuit | P0651 | P0222 | P0651 | - |