Possible Causes
WARNING: This page is about a different car, the 2009 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
| (F891) 5 VOLT SUPPLY CIRCUIT SHORTED TO GROUND |
| (F891) 5 VOLT SUPPLY CIRCUIT SHORTED TO THE (C918) FCM SENSOR RETURN CIRCUIT |
| A/C PRESSURE TRANSDUCER |
| FRONT CONTROL MODULE (FCM) |