Announcement

Collapse
No announcement yet.

2010 trailer LED lights don't work other than reverse lights

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • #31
    Originally posted by TMCNo1 View Post
    He said he solved it in post #23.
    I think they are trouble shooting X-Aggie's issue, now.
    -Cameron
    2007 ProStar 197
    1996 ProStar 190

    Comment


    • #32
      Going to bust out the multimeter. Thanks for the suggestion!

      Comment


      • #33
        Originally posted by X-Aggie View Post
        Going to bust out the multimeter. Thanks for the suggestion!
        oh yeah, forgot to ask... does the trailer behave the same way when connected to other trucks?

        Comment


        • #34
          Originally posted by Sodar View Post
          I think they are trouble shooting X-Aggie's issue, now.

          Ok, Ok, I just have trouble multi-tasking in one thread, bye!
          Charter Member Number 1

          Quote: 2RLAKE,
          At some point in time people need to wake up, remove their cranial intrusion into their own rectal areas, and take responsibility for their own actions.




          Comment


          • #35
            I guess I should have clarified, the trailer side is good. When the trailer in question is towed by other trucks it's fine. Also when I tow other boats (MC) off the lot it does the same weird thing.

            Comment


            • #36
              Originally posted by X-Aggie View Post
              I guess I should have clarified, the trailer side is good. When the trailer in question is towed by other trucks it's fine. Also when I tow other boats (MC) off the lot it does the same weird thing.
              Ok cool, that takes care of half the equation (and actually makes sense why your fuses aren't popping)... then you just need to check your vehicle side connector.



              Try to measure from vehicle chassis ground to pins 1 (GND) and 4 (+12V) to make sure power and ground are wired correctly to the connector on the truck. Then measure the voltage from 1(GND) to the other pins with the brakes/blinkers OFF, and then with them ON to see if the brake/blinkers pins are getting +12V when the lights are supposed to be ON.

              Edit--------

              This thread should probably be moved into the tech section under trailers since all we're doing is troubleshooting at this point...
              Last edited by Shaun315; 03-26-2010, 05:20 PM.

              Comment


              • #37
                Ok truck connecter, lights and truck off:
                Pin 5 = 12.25V
                Pin 1 = 0V
                Pin 2 = 0V
                Pin 6 = 12.25V
                Pin 4 = 6V
                Pin 3 = 3V
                Pin 7 = 4V

                Lights on:
                Pin 5 = 12.25V
                Pin 1 = 0V
                Pin 2 = 0V
                Pin 6 = 12.25V
                Pin 4 = 6.5V
                Pin 3 = 12V
                Pin 7 = 4V

                Hazards on of course voltage bounced from 3-10V on all active pins

                All measured +/- .3V

                So I guess the big mystery is why that plug is constantly powered, and that the relay cuts power only when it should be sending power. Once again mystified.
                I guess the big mystery

                Comment


                • #38
                  At least pins 1 and 2 are 0V.

                  Did you buy this truck new? Any chance someone put the wrong relays in for the trailer lights?

                  It sounds like the relays are wired to the trailer with the Normally Closed (NC) relay output running to the connector instead of the Normally Open (NO). Next step is check the part numbers on the relays for the trailer indicators. If you can swap out relays with NC and NO swapped from what you have now it should fix your problem... hopefully the correct relays are the ones listed at the auto store.

                  Comment


                  • #39
                    Which relays would those be? I see none specificly listed as pertaining to trailer functions in the owners manual. Thanks again for your help Shaun.

                    Comment


                    • #40
                      Originally posted by X-Aggie View Post
                      Which relays would those be? I see none specificly listed as pertaining to trailer functions in the owners manual. Thanks again for your help Shaun.
                      I doubt they're in the manual... but jumping over to the f150 forums I found this thread:




                      http://www.f150online.com/forums/tow...cations-4.html

                      I'd pull both turn/brake relays and take them to an auto store or just call your local ford dealer see if you can get the right ones. Tell the auto parts guys what your trailer does and you need to get relays with NC and NO reversed from what you have, should take care of your problem.

                      If they aren't located in that location you might have to find a haynes/chiltons manual, or just take it to the dealer to fix, shouldn't be that hard for a ford tech to fix (being factory wired it may be their fault anyway).

                      Comment

                      Working...
                      X