Why Does a Trailer Brake Controller Stay On when the Key is Turned Off on a 2002 Dodge Ram 2500

Question:

the contoller stays on even wiyh the key off my dodge has the factory 7 way plug and wiring harness. do you know why it doesnt shut off with the key

asked by: Ed

Expert Reply:

I am not sure which brake controller you are using but most controllers are connected to a fused power source directly to the battery and not an ignition source. This means the controller can draw power even with the key off. However, most will go into a kind of sleep mode after about 15 minutes of inactivity and will not draw much if any power from the vehicle battery.

expert reply by: Michael H