The first thing to check is to make sure that the sensitivity or output settings on your Curt Echo # C51180 did not change from your original settings.
It also may be beneficial to re-adjust the controller from scratch. In order to do this, Curt recommends performing the setup on a completely flat paved/concrete surface. At around 25 MPH, apply the vehicle's brakes. If the trailer brakes lock up or jerk/grab, decrease the max output level. Repeat this process until brakes are firm (just... view full answer...
According to the instructions for the Curt tester, the light marked 12V should be on constantly once you start the vehicle and perform a function test. Since this is not the case, we will assume the tester is functioning correctly
Make sure the 7-way connection on your vehicle is clean so it there is a good connection for the tester. You also want to inspect it and make sure there isn't any damage. In addition to these two things you can also check the fuse. Each function of a factory... view full answer...
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