Possible Causes
| Possible Causes |
|---|
| EXCESSIVE RESISTANCE IN THE TPS 1 SIGNAL CIRCUIT |
| EXCESSIVE RESISTANCE IN THE TPS 2 SIGNAL CIRCUIT |
| EXCESSIVE RESISTANCE IN THE 5-VOLT SUPPLY CIRCUIT |
| EXCESSIVE RESISTANCE IN THE TPS RETURN CIRCUIT |
| TPS 1 SIGNAL CIRCUIT SHORTED TO THE TPS 2 SIGNAL CIRCUIT |
| THROTTLE POSITION SENSOR/THROTTLE BODY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .