Possible Causes
| Possible Causes |
|---|
| LOW COOLANT LEVEL |
| THERMOSTAT OPERATION |
| SIGNAL CIRCUIT SHORTED TO VOLTAGE |
| TEMPERATURE SENSOR |
| SIGNAL CIRCUIT OPEN |
| SENSOR GROUND CIRCUIT OPEN |
| SIGNAL CIRCUIT SHORTED TO GROUND |
| SIGNAL CIRCUIT SHORTED TO THE (K900), (G931) SENSOR GROUND CIRCUIT |
| OTHER POSSIBLE CAUSES |
| POWERTRAIN CONTROL MODULE (PCM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.