How to Install a Brake Controller on a 1999 GMC Suburban

Updated 02/15/2013 | Published 02/13/2013

Products Featured in This Question

Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector

(15)

$18.95

Universal Installation Kit for Trailer Brake Controller - 6-Way and 4-Way Flat - 10 Gauge Wires

(9)

$73.23

Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires

(3397)

$121.19

Question:

I am a 1st timer at trying to hook up a brake controller. I recently purchased a Hopkins Agility portional/inertia brake controller and a GMC Plug-In Simple for my 1999 GMC Suburban. Supposedly my Suburban is already equiped with a tow packing since it has the added transmission cooler located in front of the radiator and I have a tow hitch... with a blue, orange, and the other 4 necessary wires cant exactly recall the colors. My problem is that I cant seem to locate exactly where I am suppose to plug in the Plug-In Simple into the factory port under the dash. If anybody has worked with hooking up a Plug-In Simple for a 99 Suburban and can direct me to the factory port location that would be very much appreciated. I can take a picture if helpful.

asked by: Peter S

Expert Reply:

Your 1999 GMC Suburban does not have a port under the dash to connect a brake controller harness. You will need to hardwire the Hopkins Agility Brake Controller # HM47294 with brake controller 7 and 4-way installation kit, item # ETBC7, or a 6 and 4-way installation kit, item # ETBC6, depending on the connector you need for your trailer. These kits come with everything needed to install the brake controller and wiring from scratch as long as you have a 4-way connector installed on your Suburban.

If you do not have a 4-Way connector installed then you will need the custom fit T-One Vehicle Wiring Harness with 4 Pole Trailer Connector, item # C55319, to install the 4-Way connector in the factory connector.

expert reply by: Jameson C