Brake Controller Wiring Adapter for 2003 GMC Sierra

Question:

Do you guys sell a harness that will wire into a 2003 GMC 2500? I need one that requires no splicing. I have the Tekonsha Prodigy P2 brake controller

asked by: Michael E

Expert Reply:

To install the Tekonsha Prodigy P2 Brake Controller # 90885 in your 2003 GMC Sierra 2500 series, you would use the Wiring Adapter, part # 3015-P. This adapter features a connector on each end, one side plugs in under the dash, the other end would plug into your Prodigy P2 brake controller, with no cutting or splicing required.

The adapter would plug into the wiring block located behind the emergency brake pedal. The black cover on the junction box would be removed, and the adapter plugged into the the second slot from the left in the top row. You might also need to complete some wiring under the hood, as shown in the install guide I will link you to.

I will provide a link to the adapter mentioned above, as well as to an installation video that you might find helpful. The video shows the installation on a 2001 GMC Yukon, but the installation procedure would be identical to your 2003 Sierra.

expert reply by: Mike L