2529-EGR Airflow Control Valve Circuit Short To Ground: Notes
For complete wiring diagrams, refer to SYSTEM WIRING DIAGRAMS .
- When Monitored:
With the ignition on.
- Set Condition:
The ECM detects that the EGR Airflow Control Valve Position Sensor Signal circuit is below 0.07 volt for 0.30 seconds.
| Possible Causes |
|---|
| INTERMITTENT DTC |
| EGR AIRFLOW CONTROL VALVE SUPPLY CIRCUIT SHORTED TO GROUND |
| EGR AIRFLOW CONTROL VALVE POSITION SENSOR SIGNAL CIRCUIT SHORTED TO GROUND |
| EGR AIRFLOW CONTROL VALVE SUPPLY CIRCUIT SHORTED TO EGR AIRFLOW CONTROL VALVE RETURN CIRCUIT |
| EGR AIRFLOW CONTROL VALVE POSITION SENSOR SIGNAL CIRCUIT SHORTED TO EGR AIRFLOW CONTROL VALVE RETURN CIRCUIT |
| EGR AIRFLOW CONTROL VALVE SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE |
| EGR AIRFLOW CONTROL VALVE POSITION SENSOR SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| EGR AIRFLOW CONTROL VALVE |
| ENGINE CONTROL MODULE (ECM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Engine Control (ECM) - Standard Procedure