Possible Causes
| Possible Causes |
|---|
| IAT SIGNAL CIRCUIT SHORTED TO GROUND |
| IAT SIGNAL CIRCUIT SHORTED TO THE SENSOR GROUND CIRCUIT |
| MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .