Possible Causes
- EGR POSITION SENSOR SWEEP
- INTERMITTENT CONDITION
- 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND
- 5 VOLT SUPPLY CIRCUIT OPEN
- EGR POSITION INTERNAL FAILURE
- EGR POSITION SENSOR SIGNAL CIRCUIT SHORTED TO GROUND
- EGR POSITION SENSOR SIGNAL CIRCUIT SHORTED TO SENSOR GROUND CIRCUIT
- PCM 5 VOLT SUPPLY CIRCUIT
- PCM EGR POSITION SENSOR SIGNAL