Possible Causes
WARNING: This page is about a different car, the 2017 RAM 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
| Possible Causes |
| TRAILER WIRING/BRAKES SHORTED TO GROUND |
| (B402) TRAILER TOW BRAKE SWITCH DECREASE CIRCUIT SHORTED TO GROUND |
| (B407) TRAILER TOW BRAKE SWITCH INCREASE CIRCUIT SHORTED TO GROUND |
| INTEGRATED TRAILER BRAKE MODULE (ITBM) |