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 |
| (B20) BRAKE FLUID LEVEL SWITCH SIGNAL CIRCUIT OPEN |
| (B20) BRAKE FLUID LEVEL SWITCH SIGNAL CIRCUIT SHORTED TO BATTERY VOLTAGE |
| BRAKE FLUID LEVEL SWITCH INTERNAL FAILURE |
| (Z387) SENSOR GROUND CIRCUIT OPEN |
| FRONT CONTROL MODULE |