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.