Possible Causes
| Possible Causes |
|---|
| EGR VALVE MOTOR (+) (CONTROL 1) CIRCUIT OPEN/HIGH RESISTANCE |
| EGR VALVE MOTOR (-) (CONTROL 2) CIRCUIT OPEN/HIGH RESISTANCE |
| EGR VALVE CONTROL 1 CIRCUIT SHORTED TO VOLTAGE |
| EGR VALVE CONTROL 2 CIRCUIT SHORTED TO VOLTAGE |
| EGR VALVE CONTROL 1 CIRCUIT SHORTED TO THE EGR VALVE CONTROL 2 CIRCUIT |
| EGR VALVE ASSEMBLY |
| POWERTRAIN CONTROL MODULE |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .