Possible Causes
| Possible Causes |
|---|
| IAT SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| IAT SENSOR SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| IAT SENSOR GROUND CIRCUIT OPEN OR HIGH RESISTANCE |
| INTAKE AIR TEMPERATURE (IAT) SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .