Good Sam Club Open Roads Forum: Chasing No left turn Signal on Trailer With Ram Truck
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 > Chasing No left turn Signal on Trailer With Ram Truck

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SweetLou

La Quinta, CA USA

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Posted: 09/14/21 07:47am Link  |  Quote  |  Print  |  Notify Moderator

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?


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enblethen

Moses Lake, WA

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Posted: 09/14/21 07:55am Link  |  Quote  |  Print  |  Notify Moderator

Check for a trailer connector fuse? Does the brake light work?
Looks like fuse 53
Fuse block


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SweetLou

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Posted: 09/14/21 08:57am Link  |  Quote  |  Print  |  Notify Moderator

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

jhgerhart

Southeast PA

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Posted: 09/14/21 09:08am Link  |  Quote  |  Print  |  Notify Moderator

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.

Michelle.S

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Posted: 09/14/21 09:21am Link  |  Quote  |  Print  |  Notify Moderator

GM has fuses for Right and Left Trailer in the fuse block under the hood.


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enblethen

Moses Lake, WA

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Posted: 09/14/21 12:28pm Link  |  Quote  |  Print  |  Notify Moderator

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 *

SweetLou

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Posted: 09/14/21 01:14pm Link  |  Quote  |  Print  |  Notify Moderator

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 *

enblethen

Moses Lake, WA

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Posted: 09/14/21 01:46pm Link  |  Quote  |  Print  |  Notify Moderator

You may find a PDF free owner's manual online!
Owner's manual
Look at page 678

mudfuel07

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Posted: 09/14/21 01:53pm Link  |  Quote  |  Print  |  Notify Moderator

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.


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Me Again

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Posted: 09/14/21 06:40pm Link  |  Quote  |  Print  |  Notify Moderator

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


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