Post by: stewie on June 29, 2021, 02:30:39 PM
I installed a Reese Towpower in my 2012 sierra 1500 back in 2018. worked perfect. Fast forward to this year... the 7 prong Pollack plug in my trailer came lose while towing and i could not figure out why nothing was working when i wired it back up. i finally got everything but the trailer brake functioning. i had to go to the trailer dealer i purchased mine from and ask to see how the MFG wired the plug up. Ok, cool i got it. went home and changed up my wiring.
Now my trailer brake controller under my dash has NO power. I checked all trailer related fuses under the hood, reset the harness, checked the wires and prayed. I cannot figure out why I have no juice going to the TBC. I wonder if me having a misaligned or wrongly connected wire initially caused an issue somewhere?
Any insights will be helpful.
Post by: stlaser on June 29, 2021, 04:02:51 PM
I know nothing about pollack gm vehicles….. Ken’s in charge of those I think and his gf H! :popcorn:
Post by: stewie on June 29, 2021, 04:04:48 PM
Fam is ok.
Post by: KensAuto on June 29, 2021, 05:09:30 PM
If you used a gm harness that plugs in under the dash, it will get power from a large fuse.. like 40a. I think it's called "stud #2" or auxiliary iirc
Post by: stewie on June 29, 2021, 05:24:21 PM
If the controller doesn't have power trace it out. Black wire has battery power always. White wire is ground. Red wire has power when stepping on brakes only.
If you used a gm harness that plugs in under the dash, it will get power from a large fuse.. like 40a. I think it's called "stud #2" or auxiliary iirc
thanks - ill check this out shortly and get back to you.
Post by: stewie on June 29, 2021, 05:25:33 PM
If the controller doesn't have power trace it out. Black wire has battery power always. White wire is ground. Red wire has power when stepping on brakes only.would this fuse be under the hood or dash?
If you used a gm harness that plugs in under the dash, it will get power from a large fuse.. like 40a. I think it's called "stud #2" or auxiliary iirc
Post by: KensAuto on June 29, 2021, 06:43:35 PM
Should be similar to this . He doesn't have a controller. (notice#68 missing...#63 is trailer charging I think)(https://uploads.tapatalk-cdn.com/20210629/5ab76adc0fbf15f71848df994dd45c8a.jpg)(https://uploads.tapatalk-cdn.com/20210629/ce02be98b9887cef4454ce7e1320eb63.jpg)
Post by: KensAuto on June 29, 2021, 06:43:54 PM
Under hoodIf the controller doesn't have power trace it out. Black wire has battery power always. White wire is ground. Red wire has power when stepping on brakes only.would this fuse be under the hood or dash?
If you used a gm harness that plugs in under the dash, it will get power from a large fuse.. like 40a. I think it's called "stud #2" or auxiliary iirc
Post by: stewie on June 29, 2021, 07:56:06 PM
thanks so much for the help!
Post by: Flyin6 on June 29, 2021, 08:38:45 PM
This is good
Welcome back Stewie, now I'll probably have to ban ya for a short time for being AWOL.
Just grin and bear it...
OK, that was long enough. Stay away again and I'll ban ya longer ;-))
Post by: stewie on June 29, 2021, 09:21:34 PM
^^^ See what just happened here^^^
This is good
Welcome back Stewie, now I'll probably have to ban ya for a short time for being AWOL.
Just grin and bear it...
OK, that was long enough. Stay away again and I'll ban ya longer ;-))
My excuse is good. trust me :)
Post by: Flyin6 on June 30, 2021, 07:47:50 AM
Need some guys praying for you?^^^ See what just happened here^^^
This is good
Welcome back Stewie, now I'll probably have to ban ya for a short time for being AWOL.
Just grin and bear it...
OK, that was long enough. Stay away again and I'll ban ya longer ;-))
My excuse is good. trust me :)
Post by: stewie on June 30, 2021, 01:52:21 PM
Need some guys praying for you?^^^ See what just happened here^^^
This is good
Welcome back Stewie, now I'll probably have to ban ya for a short time for being AWOL.
Just grin and bear it...
OK, that was long enough. Stay away again and I'll ban ya longer ;-))
My excuse is good. trust me :)
That always helps. Thanks.
Post by: stewie on June 30, 2021, 01:54:32 PM
Under hoodIf the controller doesn't have power trace it out. Black wire has battery power always. White wire is ground. Red wire has power when stepping on brakes only.would this fuse be under the hood or dash?
If you used a gm harness that plugs in under the dash, it will get power from a large fuse.. like 40a. I think it's called "stud #2" or auxiliary iirc
Ken - so i just reseated the fuse and my TBC controller has power now. It shows connected to trailer, etc... but now its always got power. Its been months since it worked last so i forgot if this was the case? IIRC, it would power on with ignition...
should i change out the fuse anyway to be on the safe side?
EDIT. it was powered off after a while.
Post by: KensAuto on June 30, 2021, 04:52:14 PM
Post by: Farmer Jon on July 01, 2021, 07:49:16 AM
Sent from my Pixel 5 using Tapatalk
Post by: stewie on July 06, 2021, 08:19:13 AM
My sierra and its brakes thank everyone.