Possible Causes
WARNING: This page is about a different car, the 2005 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
|---|
| (G31) AAT SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE |
| (G31) AAT SIGNAL CIRCUIT OPEN |
| (G931) SENSOR GROUND CIRCUIT OPEN |
| (G31) AAT SIGNAL CIRCUIT SHORTED TO GROUND |
| (G31) AAT SIGNAL CIRCUIT SHORTED TO THE (G931) SENSOR GROUND CIRCUIT |
| AMBIENT AIR TEMPERATURE SENSOR |
| FRONT CONTROL MODULE |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding.