Set Condition:
WARNING: This page is about a different car, the 2011 RAM Pickup. However, it is still accessible from the selected car via links, so may be relevant.
If the Integrated Trailer Brake Module (ITBM) is configured incorrect or the (B40) Trailer Tow Brake (B+) circuit is shorted to voltage, this code will set. Automatic braking and manual lever braking (squeeze switch) are disabled.