Jump to content

2001 2500HD Trailer No Right Brake Light


Recommended Posts

Hi all,

So my 2500HD stopped sending my trailers the right (passenger) brake signal. I have right turn but no right brake. Multiple posts are talking about a flasher relay - so I replaced mine (GM 12450072) with no change. It's a smaller flasher unit than what most of the posts are talking about (4-pin, not 10). I don't have the 10-pin relay. Is there another converter box that I'm missing? I've pulled, cleaned and tested all the fuses in both the fuse blocks and no love.

 

Does anyone have any ideas? Thanks for the help folks.

Link to comment
Share on other sites

If the left brake on the trailer is working then the problem is not in the truck but with the trailer itself. They use the same feed wire off the hitch connector. Therefore the problem has to be from that connector back to the light.

Link to comment
Share on other sites

I have two 7-pin plugs - both factory installed. One next to the bumper hitch under the tailgate and the other in the bed of the truck for a cab-over-camper/gooseneck. There is no voltage to the right brake wire from under the cab of the truck (in front of either plug). The turn and brake signals for each respective side come across the same wire (so left brake&turn and right brake&turn). When I hit the right turn, I get correct voltage. When I hit the brakes, nothing on the right.

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    246k
    Total Topics
    2.6m
    Total Posts
  • Member Statistics

    333,451
    Total Members
    8,960
    Most Online
    MRDEE
    Newest Member
    MRDEE
    Joined
  • Who's Online   4 Members, 1 Anonymous, 819 Guests (See full list)



×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.