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