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