Possible Causes
| POSSIBLE CAUSES |
|---|
| POWERTRAIN CONTROL MODULE (PCM) SOFTWARE UPDATE |
| LOW BATTERY VOLTAGE |
| INTERMITTENT LOSS OF CONNECTION AT THE THROTTLE BODY HARNESS CONNECTOR |
| ETC MOTOR (+) CIRCUIT OPEN/HIGH RESISTANCE |
| ETC MOTOR (-) CIRCUIT OPEN/HIGH RESISTANCE |
| COKING OR DEBRIS BLOCKING THE THROTTLE BODY PLATE |
| THROTTLE BODY PLATE BINDING INSIDE THE BORE |
| ETC MOTOR/THROTTLE BODY ASSEMBLY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE