Troubleshooting Installation of Draw-Tite Activator Brake Controller 5100


I have a 0.0 indicator when brake pedal is pressed but a good indicator when pressed manually.... f350 2000. Seems to be wired with harness but no response off pedal


Expert Reply:

It sounds like you have done a hard-wired brake controller installation on your truck. As an alternative you can use a quick-connect harness # 3035-P, which plugs in between the controller and the under-dash port on your F-350.

For the hard-wired installation you will need to tap into the cold side of the brake light switch. This is the wire that carries a signal ONLY when the brake pedal is pressed. This wire connects to the red wire on the Activator to trigger its output. You can use a tester like # 40376 to find the wire that only carries voltage when the pedal is pressed.

The two linked articles on brake controller installation may be helpful to you.

expert reply by:
Adam R

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