OK, long read:
I just installed the Tow-Pro using these parts:
T1Z15A416A Ford Module & 4-Pin Wiring Harness $125
Tow-Pro EBRH-ACC-V3-NA Kit $237
Tow-Pro TPH-007 Harness $22
Hopkins #41144 (Trailer 4-7 Pin Plug and Harness ) $50
If I had to do it again I would use the Curt parts as they come with connectors.
First I pulled the Headlight switch panel (which is the panel under the steering wheel), down. It hinges at the bottom so it stays attached to the dash. There are several clips that release when you pull outward on the panel. I used a plastic molding hook to pull it out. A metal hook will work too. Then I removed the headlight switch assembly which is just clipped into the panel. It comes out easily. I drilled a 10mm hole for the TowPro switch in the space to the right of the headlight switch. This is a perfect location and saves taking the console apart as well.
Next, I mounted the Tow Pro Module under the steering wheel on the backside of the metal plate, with double-stick 3M tape. It fits in there perfectly. Next plug in the harness from the module to the switch, and the harness from the module to the Customer Access plug next to the gas pedal. This is a very easy hook-up.
Note: Before installing the Tow-Pro harness to the Customer Plug I soldered in a 12 gauge pigtail to the blue wire. This is the wire that goes to the trailer brakes at the 7-Pin Connector. You could just solder in the blue wire but it's easier to do the pigtail IMO on the bench.
I didn't see any reason to take the interior apart on my truck so here's how I did it.
I Removed the Left and Right Rubber covers on next to the taillights on the rear door sides. I installed the Module behind the left taillight. There's a flat spot there where the Module sticks to the body panel and is very secure.
Next, I installed the trailer plug next to the trailer hitch and used the Ford aluminum foil around the harness as it's right next to the muffler. I ran the harness under the bumper and up to the wires hanging down from the Module.
Next, I soldered in the wires to the L&R Turn, Brake, Tail, and Reverse lights. For the right side, I ran the wire down into the bumper, across to the other side, and up to the light. As I said the Curt kit would be easier than soldering but I had already purchased the Ford kit using my points.
At this point, I ran the 2 - 12 Gauge wires,, B+ and Brake Control, from front to rear. I used Fish Tape and pulled the wires through the inside of the frame from front to rear. It's easier to run the fish tape from the front. I then ran the Blue Trailer Brake Wire up to the small Rubber Access Plug and through to the Pigtail on the Tow-Pro. You can pull the Access Plug out and drill a hole in it. Then install the Blue wire before installing the rubber plug back into the firewall. I ran the Red wire to the Battery where the 4 accessory posts sit. Did a clean job and wrapped the wire so it matches the other Ford harnesses with black cloth tape,.
So now it was just a matter of connecting together the 4 Wire Plug (Cut it off) to the 7 Wire Harness along with the Blue Brake Wire and The Hot B+ wire. I Checked the turn signals, brake, and taillights with a test light before cutting off the 4-wire connector, just to make sure the 4-wire module was working.
I didn't take a lot of pictures. Here's a couple:
I just installed the Tow-Pro using these parts:
T1Z15A416A Ford Module & 4-Pin Wiring Harness $125
Tow-Pro EBRH-ACC-V3-NA Kit $237
Tow-Pro TPH-007 Harness $22
Hopkins #41144 (Trailer 4-7 Pin Plug and Harness ) $50
If I had to do it again I would use the Curt parts as they come with connectors.
First I pulled the Headlight switch panel (which is the panel under the steering wheel), down. It hinges at the bottom so it stays attached to the dash. There are several clips that release when you pull outward on the panel. I used a plastic molding hook to pull it out. A metal hook will work too. Then I removed the headlight switch assembly which is just clipped into the panel. It comes out easily. I drilled a 10mm hole for the TowPro switch in the space to the right of the headlight switch. This is a perfect location and saves taking the console apart as well.
Next, I mounted the Tow Pro Module under the steering wheel on the backside of the metal plate, with double-stick 3M tape. It fits in there perfectly. Next plug in the harness from the module to the switch, and the harness from the module to the Customer Access plug next to the gas pedal. This is a very easy hook-up.
Note: Before installing the Tow-Pro harness to the Customer Plug I soldered in a 12 gauge pigtail to the blue wire. This is the wire that goes to the trailer brakes at the 7-Pin Connector. You could just solder in the blue wire but it's easier to do the pigtail IMO on the bench.
I didn't see any reason to take the interior apart on my truck so here's how I did it.
I Removed the Left and Right Rubber covers on next to the taillights on the rear door sides. I installed the Module behind the left taillight. There's a flat spot there where the Module sticks to the body panel and is very secure.
Next, I installed the trailer plug next to the trailer hitch and used the Ford aluminum foil around the harness as it's right next to the muffler. I ran the harness under the bumper and up to the wires hanging down from the Module.
Next, I soldered in the wires to the L&R Turn, Brake, Tail, and Reverse lights. For the right side, I ran the wire down into the bumper, across to the other side, and up to the light. As I said the Curt kit would be easier than soldering but I had already purchased the Ford kit using my points.
At this point, I ran the 2 - 12 Gauge wires,, B+ and Brake Control, from front to rear. I used Fish Tape and pulled the wires through the inside of the frame from front to rear. It's easier to run the fish tape from the front. I then ran the Blue Trailer Brake Wire up to the small Rubber Access Plug and through to the Pigtail on the Tow-Pro. You can pull the Access Plug out and drill a hole in it. Then install the Blue wire before installing the rubber plug back into the firewall. I ran the Red wire to the Battery where the 4 accessory posts sit. Did a clean job and wrapped the wire so it matches the other Ford harnesses with black cloth tape,.
So now it was just a matter of connecting together the 4 Wire Plug (Cut it off) to the 7 Wire Harness along with the Blue Brake Wire and The Hot B+ wire. I Checked the turn signals, brake, and taillights with a test light before cutting off the 4-wire connector, just to make sure the 4-wire module was working.
I didn't take a lot of pictures. Here's a couple:
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