Possible Causes
| Possible Causes |
|---|
| (K21) IAT SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| (K21) IAT SIGNAL CIRCUIT OPEN |
| (K900) SENSOR GROUND CIRCUIT OPEN |
| INTAKE AIR TEMPERATURE SENSOR |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.