Installing the Primus IQ Brake Controller on a Jayco Grayhawk With Existing Brake Control Wiring

Question:

The coach 2010 Jayco Grayhawk 31ss on a E 450 frame.The coach had a prior brake controler but was removed.Do I tap into the current wiring for the installation .It appears that the wiring connection have been attached correctly.

asked by: Carter

Expert Reply:

If your 2010 Jayco Grayhawk RV was already wired from a previous brake controller and the 7-way trailer connector is installed, then you will be able to wire the Tekonsha Primus IQ Brake Controller, # TK90160, to the existing wiring.

The Primus IQ uses a four-wire connection. The White Wire is wired to ground, the Black Wire is wired to 12-volt power, the Red Wire is wired to the cold side of the Stop Light switch, and the Blue Wire is wired to the Brake Circuit that runs to the 7-way trailer connection.

You will just need to make sure all the connections are operating correctly once you have connected your Primus IQ to your coach. Using a circuit tester like # PTW2993 can help you find the correct wires to make sure that the all the connections on your brake controller will be match to your RV's wiring.

I have also attached a couple of help articles that will give you more information on wiring a brake controller to a vehicle for you to review.

expert reply by: Jared P