Installing a Draw-Tite Activator II Brake Controller on a 1999 Ford F250

Question:

i purchased this adapter to replace my trucks 4 way flat. there is a smaller two relay box next to the main under hood box. there are 4 pass threw wires under dash red,blue,black and white cut and taped as well as under the hood near master cylinder at fire wall. my master cylinder has a switch that has a jumper wire with yellow and green runng from switch to the factory connector than to another connector which goes who knows where. so how do i wire up my activator two thank you

asked by: rodney

Expert Reply:

Installing the Draw-Tite Activator II Time Delayed Brake Controller, part # 5500, and Draw-Tite Ford Adapter, part # 20260, is fairly straight forward once you have the Ford Replacement OEM Tow Package Wiring Harness, 7-Way (Super Duty) part # 118243 adapter installed. You will need to install all the included relays and fuses to activate the trailer wire functions. Once this is done you can move on to installing the brake controller.

It seems likely that you are seeing cut wires under your dash because your F250 had a brake controller previously installed on it. The harness you are looking for will be most likely under the dash near the center console. You will then need to wire the Ford Adapter # 20260 to the Draw Tite Activator II brake controller and then plug the harness from the adapter into the harness that you discovered previously under the dash.

Aftermarket brake controllers are electronic and do not require wiring to a pressure switch in the master cylinder like the OEM brake controllers do. The wires at your master cylinder will not be needed, unless you are trying to rewire an OEM brake controller. If this is the case, you will need to consult a qualified Ford maintenance technician.

expert reply by: Jameson C