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Another OT trailer brake question....kinda long
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Posted by Jim.UT on July 12, 2005 at 10:14:42 from (64.122.18.247):
I used to have a '98 Dodge Ram 2500. I installed a digital trailer brake controller that worked really well. On the advice of someone on one of the tractor boards I visit, I used a wiring harness that plugged right in to the truck's system. Now I have a '98 Chev 3500. I kept the digital controller when I sold the Dodge. I went to the trailer parts supply store and told them I wanted a plug-in wiring harness for my '98 Chev. He sold me one, but I couldn't find a place to plug it in anywhere. I did some searching on the internet and found a FAQs page on etrailer.com. It listed part numbers for harnesses for Chevy trucks. The harness I was sold is supposed to fit '99 to '02 Chevy trucks. No harness is listed on etrailer.com for my '98. So I went ahead and wired my controller to the same wires the old controller was connected to (the Chevy came with a controller, but I wanted to keep my digital one). Now to my problem: with the digital controller in the Dodge, I would get trailer braking if I used the controller by hand or if I touched the brake pedal. Also, the brake lights would come on if I applied the brakes by hand at the controller or if I pushed on the brake pedal. With my current setup on the Chevy, I only get trailer braking if I manually activate the controller, not if I touch the brake pedal. This means if I want to brake both the trailer and the truck, I have to be using my left foot and my right hand simultaneously. Also, the brake lights come on only if I use the foot pedal on the truck, not if I use the controller by hand. Can anyone tell me if there is a plug-in harness available for the '98 and earlier GM trucks? Or can anyone tell me where I need to tie in my wiring to get full function like I had before? Thanks for reading my long sad tale. I hope someone can help. I lost the email address of the expert who helped me when I was installing the controller on the Dodge.
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