Possible Causes
| Possible Causes |
|---|
| 5-VOLT SUPPLY CIRCUIT OPEN |
| 5-VOLT SUPPLY CIRCUIT SHORTED TO GROUND |
| TPS 1 SIGNAL CIRCUIT SHORTED TO GROUND |
| TPS 1 SIGNAL CIRCUIT SHORTED TO THE TPS RETURN CIRCUIT |
| TPS 1 SIGNAL CIRCUIT OPEN/HIGH RESISTANCE |
| THROTTLE POSITION SENSOR/THROTTLE BODY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .