Trailer Brake Controller Installation in Class A Motorhome on Workhorse W22 Chassis

Updated 03/15/2018 | Published 03/13/2018

Products Featured in This Question

Deka Jacketed 2 Wire, 10 Gauge, Brake Wire - per Foot

(329)

$3.70

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

(3480)

$118.67

Question:

Takonsha Primus brake controller.. Will it work on my 04 Newmar Essex motorhome

asked by: Jim T

Expert Reply:

Trailer brake controllers are not vehicle-specific so pretty much any controller could be installed in any vehicle.

All controllers use the same wiring colors and connections: the white wire is ground and connects to the battery negative post; the black wire is +12V power to operate the controller and this connects to the battery + post through a 30-amp breaker; the red wire takes in the brake light switch signal (taken from the cold side of the brake light switch); and the blue wire carries the controller's brake power output signal and this runs to the 7-way.

There will be differences in how any given controller will install in a specific vehicle such as a pickup truck versus a motorhome like your 2004 Newmar Mountain Aire Class A motor coach. Pickups and other vehicles often have a special port under the dash to allow quick connection of a brake controller, but on your Workhorse W22 chassis you will need to hardwire the Tekonsha Primus IQ brake controller # TK90160.

You will need our brake controller installation kit # ETBC7 which includes the 7-way, circuit breakers and other parts needed. You will also need some additional duplex wire # 10-2-1 to reach back to the 7-way.

Two helpful articles are linked for you to help you with the install.

expert reply by: Adam R