Possible Causes
| Possible Causes |
|---|
| (K21) IAT SIGNAL SHORTED TO GROUND |
| (K21) IAT SIGNAL SHORTED TO THE (K900) SENSOR GROUND CIRCUIT |
| EXCESSIVE RESISTANCE IN THE (K21) IAT SIGNAL CIRCUIT |
| INTAKE AIR TEMPERATURE SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure .