Tow vehicle brake controller

Start here and select your year and model. Download the owners guide.

Pg: 354-355
[url]http://www.motorcraftservice.com/pubs/content/~WOTF23/~MUS~LEN/36/96f23og1e.pdf[/ur]

http://www.fleet.ford.com/maintenance/owner-manuals/



More informaiton that might be helpful.

http://www.etrailer.com/question-22284.html


What Do The Fuses And Relays Control On Tow Ready Ford OEM Tow Package Wiring Harness # 118242

Question:

what fuse and or relay controls the cruise control, power mirrors and the fog lamps,, none of them work.. thanks

asked by: Ron

Expert Reply:

The fuses and relays that come with the Tow Ready Ford Replacement OEM Tow Package Wiring Harness, 7-Way, part # 118242, does not control the cruise control, power mirrors, or the fog lamps.

The two 30 amp maxi-fuses are for the Trailer Tow Electric Brake and Trailer Tow Battery Charge fuse locations. The two relays are for the Trailer Tow Backup Lamp Relay and the Trailer Tow Battery Charge Relay.

The fuses and relays are located in the vehicles power distribution box (and trailer tow relay block on some models) located in the engine compartment on the drivers side;open the cover(s) to access the relays and fuses. You will want to check your vehicle owners manual for the exact locations of the fuses and relays.

I am including a link to the installation instructions on the # 118242 wiring harness.

The wiring harness # 118242 will not work on the Ford Super Duty trucks. You will need the Tow Ready Ford Replacement OEM Tow Package Wiring Harness, 7-Way (Super Duty), part # 118243, for the Super Duty trucks.

I am including a video link to the wiring harness # 118242 being installed on a 2001 Ford F-150. At the 1:52 time mark is where they start to install the wiring harness.

expert reply by: Jeff D

cab mounted brake light works fine.
thx

On Chevys there's one wire for trailer charging and a second for trailer brakes. You should be able to find pics or video for your particular model on google.

Not sure on a Ford but check the cab mounted brake light for operation. Some trucks get power for part of the BC operation from this circuit plus an additional non-ignition circuit for manual over-ride operation.