Agility Trailer Brake Controller Does Not Show Trailer Connected Even with Trailer Connected
Question:
I installed aAgility #47294 on my 2006 che 2500 hd. when I hook it up to the trailer the red dot does not light up. If I hit theManual override it lights up so why is it not showing that Im hooked up to the trailer.
asked by: Tedweisner
Expert Reply:
First, we should make sure you have the correct wiring harness. You should be using # HM47795. This harness has the red pin for the stop light circuit unhooked from the plug. You will need to make sure it is placed in the correct spot (see instructions linked).
Check the port on the truck to determine where it needs to go. Using a circuit tester like # PTW2993, if needed, test the pins in the port until you find the one that is hot when you step on the brakes. Once you find it, place the pin in the corresponding spot in the connector and plug it in.
It could be a ground problem. If the brake controller ground is not good, it can cause any number of issues. The other possibilities are a bad ground at the vehicle side or trailer side connectors. You will need to check each place for a bad ground connection, loose or broken wires, and/or dirty and corroded connectors.
If everything checks out the possibility exists that the brake magnets on the trailer brakes could be bad or going bad. They too require a good ground connection. You can visually inspect the magnets first. If you see any of the windings in the magnet they will need to be replaced.
To further test your magnets, you can follow the FAQ I have linked for you.
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