Where is the flasher relay for 74 trucks?

Discussion in 'Maintenance/Repair' started by THorn, Mar 8, 2021.

  1. THorn

    THorn Member

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    Hey friends,

    One of my flashers isn't flashing, so I got this doodad to replace it:
    [​IMG]
    Only thing is... I can't see where the dang thing is supposed to go. I can hear the left one ticking when it operates, but I can't find the right side flasher, because it's not operating. Can anyone save me a little time hunting for it?
     
  2. jetas

    jetas Grand Toyotaholic

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    Its behind the radio on the inside of the firewall. Looks nothing like that doodad you bought
     
  3. THorn

    THorn Member

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    Yeah, That's where I hear the left one ticking. I'll just have to follow my ears and take stuff apart until I see it.

    I think the doodad is a generic 'universal' flasher that I got from the local parts store. It was what popped up in their parts database for this truck. I took a chance because it was only a few $. I don't really expect to find an OEM part easily.
     
  4. jetas

    jetas Grand Toyotaholic

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    The OEM one also controls the hazards. You may need to do some rewiring if you cant locate a replacement
     
  5. fred heath

    fred heath Addict

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    If you hear a “clicking “ and one side is working it’s NOT the relay. Check your wiring and grounds. Your one relay controls both sides.
     
    Last edited: Mar 9, 2021
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  6. THorn

    THorn Member

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    Yes, you’re right. It turned out to be a finicky wiring harness to the front bumper signal. The bad connection was the problem. One flasher controls both turn signals and hazards. In the process, I did connect the generic flasher above, and it’s quite compatible with the 2pin design of the original(although I had to crimp on some 1/4” quick connectors in place of the wiring harness), but I’m keeping the o.e. flasher til it dies.
     
  7. THorn

    THorn Member

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    9769D2C9-B1B1-49B6-885E-E241E84F228D.jpeg C29162E2-6F35-4151-B18C-EE51A4F97563.jpeg
    It’s just a simple EL12 flasher, but it does the job as a spare, since There’s not many of the original ones left. I suspect that it might be possible to make a 3pin flasher work using 2 of the 3pins. Anyone tried it?
     

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