Does Tekonsha Primus Brake Controller Need Vehicle Movement to Apply Trailer Brakes

Question:

I have a Tekonsha Primus IQ Trailer Brake Controller and I am not getting the breaking I like. I am checking the voltage and it is not consistant when I step on the breaks the voltage can be anything from 0 - 12. When I push the slider it is alway 12. Does the vehicle need to be moving for it to work with the break pedal?

asked by: LeRoy G

Expert Reply:

The Tekonsha Primus IQ part # TK90160 is a proportional brake controller that will require inertia changes for the braking pressure to be seen. So using the brake pedal and a circuit tester would yield you unpredictable results. What specifically is the braking performance you aren't liking? When you slide the manual override does that allow the brakes to feel strong?

expert reply by: Jameson C