Expert Answers about Chevrolet Silverado 1500 LD

• Trailer Brakes Not Functioning But Will Work When Break Away Pin is Pulled
• By trying a second trailer, you've pretty well eliminated your tow vehicle as being the issue. My suspicion is that the trailer connector on the trailer is either damaged or corroded which is preventing the signal from the brake controller from reaching the trailer brakes. The fact that the brakes work normally with the break away pin pulled would tend to back this up, as the break away system connects in downstream of the trailer connector. If you need to replace the 7-way connector on...
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