I just installed a brake contorller for trailer brakes in my 03 QC 4x4 4.7 auto. Or should i say i used the wrong wireing harness to begin with and crossed the wires. everything works fine now. (I haave already replaced the brake light switch) However I now have to push in the button on the controller to get out of park . any help will be greatly appreciated it makes a nice anti theft dvice but is quite a pain when in a hurry thanks

 

I can't offer any exact help but whatever you've done, it's keeping the ECU from seeing when you have pressed the brake pedal. Now it only sees the trailer brake controller's output.

 

Thanks for the reply, I'll keep diggin, Maby the park interlink needs adjustment. I'll try that and post my results. If it ever stops raining.