SweetLou
La Quinta, CA USA
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OK guys I have a new issue with this 2013 Ram 6.7. I had to pack some bearings in my utility trailer and afterward, I hooked up the truck and plugged into it to see about lights on the trailer. Found out left signal light not working. Later that day I connected our Subaru to the trailer and everything works. So then I hooked up another trailer I have to the truck and same issue, no left turn signal. The truck has at the bumper a seven pin, and 4 pin connection (all in one). I then tried the seven pin inside the bed to isolate which connector is bad, and guess what, no left signal there as well. So now the issue moves to wiring harness at the junction under the truck where the two split to see if there is power there.
Can anyone here tell me any tips in chasing this, or thoughts on if there is no power at the junction where you would go from there?
2013 3500 Cummins 6.7 Quadcab 4x4 3.73 68FE Trans, 2007 HitchHiker Discover America 329 RSB
We love our Westie
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enblethen
Moses Lake, WA
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Joined: 01/05/2005
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Check for a trailer connector fuse? Does the brake light work?
Looks like fuse 53
Fuse block
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SweetLou
La Quinta, CA USA
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enblethen wrote:Check for a trailer connector fuse? Does the brake light work?
Looks like fuse 53
Fuse block
Brake lights work, I think. I need to check that again. Left signal works on truck so fuse 53 how could that be an issue if it works on the truck? Just asking
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jhgerhart
Southeast PA
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I had a similar problem, but with a Ford. 10 years ago I added airbags. This year the trailer lights stopped working. Fuse OK, relay OK, now what?
I traced the wiring inch by inch and found that the tube to add air to the airbags was rubbing against the wiring harness. 10 years later, to wore through a wire. No damage to the airbag air tube, however.
Maybe no help to you, but you may have to trace the wire to see where it is broken.
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Michelle.S
Western NY till fall, then Sebring, FL
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GM has fuses for Right and Left Trailer in the fuse block under the hood.
2018 Chevy 3500HD High Country Crew Cab DRW, D/A, 2016 Redwood 39MB, Dual AC, Fireplace, Sleep #Bed, Auto Sat Dish, Stack Washer/Dryer, Auto Level Sys, Disk Brakes, Onan Gen, 17.5" "H" tires, MORryde Pin & IS, Comfort Ride, Dual Awnings, Full Body Paint
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enblethen
Moses Lake, WA
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Fuse is for trailer connector. Truck lights are on it's own fuse.
Check your owner's manual
* This post was
edited 09/14/21 12:43pm by enblethen *
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SweetLou
La Quinta, CA USA
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enblethen wrote:Fuse is for trailer connector. Truck lights are on it's own fuse.
Check your owner's manual I wish I had an owners manual. Had it stolen while at a dealership. $75 for a new one. Now I know why their employee stole it
* This post was
edited 09/14/21 07:21pm by SweetLou *
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enblethen
Moses Lake, WA
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You may find a PDF free owner's manual online!
Owner's manual
Look at page 678
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mudfuel07
North Florida!
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Definitely check the fuses under the hood. I have a trailer that likes to short out the trailer signals almost every time, I need to change the lights on it and be done.
2018 Ram 3500 6.7 CTD 4x4 SLT
2020 Puma by Palomino 32RBFQ for the kids!
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Me Again
Sunbird(Wa)/snowbird(Az)
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SweetLou wrote:enblethen wrote:Check for a trailer connector fuse? Does the brake light work?
Looks like fuse 53
Fuse block
Brake lights work, I think. I need to check that again. Left signal works on truck so fuse 53 how could that be an issue if it works on the truck? Just asking
F53 = Trailer Tow – Left Turn/Stop Lights
2021 F150 2.7 Ecoboost - Summer Home 2017 Bighorn 3575el. Can Am Spyder RT-L Chrome, Kawasaki KRX1000. Retired and enjoying it! RIP DW 07-05-2021
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