Numbers Shown When Braking with Tekonsha Primus IQ On 2007 GMC Sierra

Question:

I just installed my brand new tekonsha primus iq brake controller . Hard wired into my 2007 GMC Sierra 1500 new body style. Its for power and all but I havent hooked up a trailer to it yet. But when Im driving down the road and go to stop number start going up when I press my brakes but when I release them it goes back to 0 this is with no trailer attached to my truck nothing plugged in.should numbers be moving like that just by by activating my regular brakes while stopping.. Thank you

asked by: Matt S

Expert Reply:

It sounds like you may have a wiring mix-up on the Tekonsha Primus IQ Trailer Brake Controller part # TK90160 as the power numbers should only be displayed when a trailer is connected. I have attached a help article for the wire connections below. If everything check outs you may have an issue with a wire shorting out. The short is typically on the blue wire for this issue as this is what the controller reads to see if a trailer is connected.

expert reply by: Conner L