Trailer Brakes Locked Up When Plugged In 7 Way

Trailer Brakes Locked Up When Plugged In 7 Way - If it reads 12v then you have a bad controller. Also, the indicator light on the controller doesn't light up at all with the new. Check the blue wire at the brake controller for power with the trailer connected. When we plug in the new trailer the brakes lock up.

Check the blue wire at the brake controller for power with the trailer connected. Also, the indicator light on the controller doesn't light up at all with the new. When we plug in the new trailer the brakes lock up. If it reads 12v then you have a bad controller.

If it reads 12v then you have a bad controller. When we plug in the new trailer the brakes lock up. Check the blue wire at the brake controller for power with the trailer connected. Also, the indicator light on the controller doesn't light up at all with the new.

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Also, The Indicator Light On The Controller Doesn't Light Up At All With The New.

Check the blue wire at the brake controller for power with the trailer connected. When we plug in the new trailer the brakes lock up. If it reads 12v then you have a bad controller.

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