Possible Causes
| Possible Causes |
|---|
| 5-VOLT SUPPLY CIRCUIT OPEN OR SHORTED TO GROUND |
| TPS 1 SIGNAL CIRCUIT SHORTED TO ANOTHER VOLTAGE SUPPLY CIRCUIT |
| TPS 1 SIGNAL CIRCUIT OPEN/HIGH RESISTANCE |
| SENSOR GROUND CIRCUIT OPEN/HIGH RESISTANCE |
| THROTTLE BODY ASSEMBLY |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .