dead factory 7 pin plug

Discussion in 'Towing & Hauling' started by sourdough, Mar 11, 2019.

  1. sourdough

    sourdough Junior Member

    Posts:
    21
    Likes Received:
    9
    Joined:
    Feb 7, 2017
    Location:
    93013
    Ram Year:
    2012
    Engine:
    6.7
    My '12 Ram 3500 has the factory tow package. Problem is the plug at the bumper is dead but all fuses in the box are good. The lever controller on the dash shows power on the screen. I'm thinking I need to look at a factory wiring diagram to run down the tow wiring plug connections.
     
  2. sourdough

    sourdough Junior Member

    Posts:
    21
    Likes Received:
    9
    Joined:
    Feb 7, 2017
    Location:
    93013
    Ram Year:
    2012
    Engine:
    6.7
    Anyone know where I can find a wiring diagram ?
     
  3. rwwells

    rwwells Junior Member

    Age:
    62
    Posts:
    26
    Likes Received:
    28
    Joined:
    Mar 21, 2018
    Location:
    East Coast
    Ram Year:
    2017
    Engine:
    5.7
    Hi sourdough,
    I don't have a wiring diagram, but did you check to be sure the harness on the backside of the plug is fully inserted and didn't come loose?
     
    Lucy Girl likes this.
  4. sourdough

    sourdough Junior Member

    Posts:
    21
    Likes Received:
    9
    Joined:
    Feb 7, 2017
    Location:
    93013
    Ram Year:
    2012
    Engine:
    6.7
    Yep, thanks.
     
  5. Hd74ica

    Hd74ica Senior Member

    Age:
    69
    Posts:
    124
    Likes Received:
    119
    Joined:
    May 24, 2018
    Location:
    Lake Superior Michigan/San Diego
    Ram Year:
    2018
    Engine:
    6.4 Hemi
    Well I certainly don't know anything about electricity other than to respect it. That said it sounds as though there is no continuity or a short somewhere in one of the wires.
     
  6. Hd74ica

    Hd74ica Senior Member

    Age:
    69
    Posts:
    124
    Likes Received:
    119
    Joined:
    May 24, 2018
    Location:
    Lake Superior Michigan/San Diego
    Ram Year:
    2018
    Engine:
    6.4 Hemi
    Hit reply button to quickly if you have a multimeter you should be able to check the fittings inside the receptacle and see if they're getting juice
     
  7. sourdough

    sourdough Junior Member

    Posts:
    21
    Likes Received:
    9
    Joined:
    Feb 7, 2017
    Location:
    93013
    Ram Year:
    2012
    Engine:
    6.7
    no juice anywhere on the plug
     
  8. Hd74ica

    Hd74ica Senior Member

    Age:
    69
    Posts:
    124
    Likes Received:
    119
    Joined:
    May 24, 2018
    Location:
    Lake Superior Michigan/San Diego
    Ram Year:
    2018
    Engine:
    6.4 Hemi
    You may be able to find a wiring diagram on the internet but you definitely have a short somewhere. Let us know how this works out.
     
  9. OCDTech

    OCDTech Senior Member Supporting Member

    Posts:
    279
    Likes Received:
    299
    Joined:
    Jun 17, 2018
    Location:
    Central Louisiana
    Ram Year:
    2016
    Engine:
    Hemi 5.7


    You said fuses were good, did they have power? I believe is as follows:

    Fuse 53 Left Trailer Relay/lights routed through BCM
    Fuse 81 Right Trailer Relay/lights routed through BCM
    Fuse 29 Trailer Park/lights routed through BCM
    Fuse 27 Trailer Back up relay/lights routed through BCM
    Fuse 30 is a 30 amp Direct from battery i believe. Not through a module.

    Hope this helps some.
     
    GsRAM and ReefRaider like this.
  10. sourdough

    sourdough Junior Member

    Posts:
    21
    Likes Received:
    9
    Joined:
    Feb 7, 2017
    Location:
    93013
    Ram Year:
    2012
    Engine:
    6.7
    Thanks. I have yet to check it fuses have power. I did note the factory dash tow brake lever display has power. I will look into it tomorrow.
     

Share This Page