No Trailer Brakes with Manual Override or Brake Pedal Using a Tekonsha P2 Brake Controller

Question:

I have power to the trailer all lights and signals but no trailer brakes manual or just brake pedal

asked by: Mark C

Expert Reply:

There are several possible causes that could lead to the problem you are having with the P2 brake controller # 90885. The first thing you are going to want to do is sever the blue wire from the back of the controller several inches. Then use a circuit tester such as # PTW2979 if needed to test the end of the blue wire coming out of the controller while you apply the manual override.

If the wire shows power during this test then the problem is not with the controller but with the wiring somewhere between the controller and the trailer connector. If it does not show power then there is something wrong with the controller and it will need to be replaced.

If you happen to have a GMC/Chevy truck or SUV then it is possible that some additional connections will need to be made under the hood (if the blue wire does show power but that power is not making it back to the 7-Way). I will need to know the year, make, and model of the vehicle to troubleshoot further.

I have included a link to an FAQ article on brake controller troubleshooting that should also help.

expert reply by: Michael H