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Wiring issue or bad relay ?

Discussion in '1st Gen. Tacomas (1995-2004)' started by Tycoma98, Sep 4, 2020.

Page 2 of 2
  1. Sep 5, 2020 at 4:30 PM
    #21
    Dalandser

    #21
    Dalandser ¡Me Gustan Las Tacos-mas!

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    Looking over everything more carefully, if you pull one tail light bulb at a time can you get rid of the issue - not sure if that’s a feasible route to diagnose if it’s a faulty socket or bulb, but now it looks like you need to find the place where power’s transferring from the headlights / tail lights to the blinker and it could be in the tail light circuit since you followed the advice to remove the tail light fuse and the issue went away.
     
    Dalandser, Sep 5, 2020
    #21
  2. Sep 5, 2020 at 4:58 PM
    #22
    Tycoma98

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    Tycoma98 [OP] Active Member

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    The tail lights only have a replaceable reverse bulb and
     
    Tycoma98, Sep 5, 2020
    #22
  3. Sep 5, 2020 at 4:59 PM
    #23
    TnShooter

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    TnShooter The TacomaWorld Stray

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    Yes, the corner lights are powered by the Tail Light fuse.
    If by pulling the tail light fuse, your turn signals works correctly, that tells us the problem is in the tail light circuit. Do you have trailer wiring?
     
    TnShooter, Sep 5, 2020
    #23
    Dalandser likes this.
  4. Sep 7, 2020 at 6:23 PM
    #24
    Tycoma98

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    Tycoma98 [OP] Active Member

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    Yes I have trailer wiring but I’ve checked over all that and everything seems fine with it
     
    Tycoma98, Sep 7, 2020
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  5. Sep 7, 2020 at 6:42 PM
    #25
    Dalandser

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    Dalandser ¡Me Gustan Las Tacos-mas!

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    It wouldn’t hurt to inspect the wiring harness all the way back to the lights.
     
    Dalandser, Sep 7, 2020
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  6. Sep 9, 2020 at 2:26 AM
    #26
    Tycoma98

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    Tycoma98 [OP] Active Member

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    Bad thing is I’ve already checked it from tail lights to under dash
     
    Tycoma98, Sep 9, 2020
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  7. Sep 9, 2020 at 2:35 AM
    #27
    Dalandser

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    Dalandser ¡Me Gustan Las Tacos-mas!

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    That's good - it's one less spot it could be feeding power. Keep looking through the harness and taking apart connectors like the one under the driver's seat if you already haven't. I'm guessing next up would be the switch / steering column wiring but if you don't find it out I have a 98 wiring FSM.
     
    Dalandser, Sep 9, 2020
    #27
  8. Sep 9, 2020 at 2:48 AM
    #28
    Tacoma Mike

    #28
    Tacoma Mike 48 Year Chrysler/Toyota/ASE/ Master Tech.RETIRED

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    Looking at it means nothing.
    Unhook it from the truck.
    98% of the time it’s a short internally in the box.
    Anytime I have one of these I cut the box out and it fixes it.
    The other 2% it was installed like crap and was going to fail soon anyways.
     
    Tacoma Mike, Sep 9, 2020
    #28
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  9. Sep 9, 2020 at 12:04 PM
    #29
    Tycoma98

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    Tycoma98 [OP] Active Member

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    Okay so the trailer wiring harness, is that just that extra wiring harness in tail light ?
     
    Tycoma98, Sep 9, 2020
    #29
  10. Sep 9, 2020 at 2:58 PM
    #30
    Tacoma Mike

    #30
    Tacoma Mike 48 Year Chrysler/Toyota/ASE/ Master Tech.RETIRED

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    The wires from the box to the tail lights yes. Unhook those input wires and try the systems
     
    Tacoma Mike, Sep 9, 2020
    #30
  11. Sep 9, 2020 at 3:03 PM
    #31
    Tacoma Mike

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    Tacoma Mike 48 Year Chrysler/Toyota/ASE/ Master Tech.RETIRED

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    People wire those things up all sorts of ways.
    So any extra connections in the tail lamps disconnect
     
    Tacoma Mike, Sep 9, 2020
    #31
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  12. Sep 9, 2020 at 9:55 PM
    #32
    Tycoma98

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    Tycoma98 [OP] Active Member

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    Did that and boom works so I just unhooked the whole harness
     
    Tycoma98, Sep 9, 2020
    #32
    TnShooter and Dalandser like this.
  13. Sep 10, 2020 at 1:39 AM
    #33
    Tacoma Mike

    #33
    Tacoma Mike 48 Year Chrysler/Toyota/ASE/ Master Tech.RETIRED

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    Yeup
     
    Tacoma Mike, Sep 10, 2020
    #33
  14. Sep 10, 2020 at 8:03 AM
    #34
    Black DOG Lila

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    Black DOG Lila Well-Known Member

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    Black DOG Lila, Sep 10, 2020
    #34
  15. Sep 10, 2020 at 9:33 AM
    #35
    Tacoma Mike

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    Tacoma Mike 48 Year Chrysler/Toyota/ASE/ Master Tech.RETIRED

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    Tacoma Mike, Sep 10, 2020
    #35
  16. Sep 10, 2020 at 2:15 PM
    #36
    Black DOG Lila

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    Black DOG Lila Well-Known Member

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    Black DOG Lila, Sep 10, 2020
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