Possible Causes
WARNING: This page is about a different car, the 2014 Dodge Journey. However, it is still accessible from the selected car via links, so may be relevant.
| POSSIBLE CAUSES |
|---|
| (K21) IAT SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| (K21) IAT SIGNAL CIRCUIT OPEN OR HIGH RESISTANCE |
| (K900) 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 .