Parts Needed to Install a Trailer Brake Controller on a 2003 and 2009 Honda Pilot with Tow Package

Expert Reply:

The 2009 Honda Pilot can use a wiring adapter for the brake controller but there is no adapter available for the 2003. So you will need to hardwire it. But lets start with the 2009.

You will need the brake controller and the wiring harness. The brake controller is part # 90195 and the wiring harness is # 3070-P that you have referenced. I have included a link to the installation details for the brake controller for you.

The brake controller comes with a harness that has blunt cut wires. You will not need it for the 2009 so you can use it on the 2003. You will need about 25 feet of # 10-1-1 wire to make some connections. From the brake controller blue wire on the 2003, attach one end to the blue wire and then route the other end all the way back to the 7-Way. Remove the wire currently attach to the 7-Way in the 7 oclock position and replace it with the wire you ran. Save any extra wire.

Back in the cab attach one end of a length of wire to the white wire, route it through the firewall and attach it to the negative battery terminal. Then, back in the cab, attach another length or wire to the black wire and route it through the firewall. Go first to a 20 amp circuit breaker, # PK54520, AUX post and then attach wire to the BAT post to the positive battery terminal.

The last connection will take place in the vehicle cab at the brake switch above the brake pedal. Use a circuit tester like # 3808 to probe the wires on the brake switch until you find the one that carries a signal ONLY when the brake pedal is pressed. Connect it to the red brake controller wire using a quick splice, # 564, to complete installation.

For an additional mounting bracket for the brake controller, use # 59045901.

expert reply by: Michael H