wxmn6
10-06-2002, 17:27
When I was installing Jordan Ultima brake controller on my truck today, I saw the 40amps fuse that came with the GM trailer harness. I checked the owner manual and saw that there are two locations for the fuse for "Accessories/Trailer" which is "Stud 1" and "Stud 2" if I remember correctly. The fuse block is located in the engine room on driver side. According to the sticker on the back of fuse block cover, it said that "Stud 1" is 40amps and that "Stud 2" is 30amps. I see that 30amps fuse is already in the "Stud 2" slot and the brake controller is working (without trailer connected). At first, I thought that the "Stud 1" is for power supply to the brake lead (blue) to the rear of truck. But when I went to test the brake wire for trailer at the rear of truck in the harness plug with truck brake applied, the test light lits dim. So I inserted the 40amps fuse in to see if the light lit brighter but I still get the same result. Now I am wondering what the 40amps that came with GM trailer harness is for? Can anyone explain?
I have not connected the trailer to my truck yet, but when the fuse issue get cleared up, then I will be able to test and adjust the brake controller. But I have a question. I am a lawn care professional and I have a 6'7" by 12' single axle trailer to pull. Should I make the adjustment (locking up the trailer brake) when the trailer is empty or loaded? Thanks.
[ 10-06-2002: Message edited by: wxmn6 ]</p>
I have not connected the trailer to my truck yet, but when the fuse issue get cleared up, then I will be able to test and adjust the brake controller. But I have a question. I am a lawn care professional and I have a 6'7" by 12' single axle trailer to pull. Should I make the adjustment (locking up the trailer brake) when the trailer is empty or loaded? Thanks.
[ 10-06-2002: Message edited by: wxmn6 ]</p>