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  •  » Turn Signals and Emergency Lights not working

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    8/17/2019 8:06 PM  #1

    TremendousWand
    I FYI 24-7

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    Registered: 5/16/2013
    Posts: 657

    Turn Signals and Emergency Lights not working

    1966 Mustang Coupe, 1988 5.0 HO Swap, EFI, MAF, T5z, 4 Disc Power Brakes, Painless Wiring Harness


    Doing a run down of the major systems of the car to try and drive it in a few weeks.  Checking all the lights:
     Brake lights work
    Headlights work
    Fog lights work
    Dome, courtesy, under dash, and glove box lights work
    trunk light works
    Horn Works
    wipers work

    Turn signals  don't work
    Emergency Lights don't work.

    Checked the fuse...looks good.

    Nothing, no faint sound no dimming nothing.  They worked when I installed the harness last year.  This has to be a bad ground somewhere right?

    The Emergency Light switch should come on regardless right? I'm stumped.

    Last edited by TremendousWand (8/17/2019 8:41 PM)

     

    8/20/2019 4:22 PM  #2

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,291

    Re: Turn Signals and Emergency Lights not working

    Check the flasher elements?

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    10/20/2019 7:05 PM  #3

    TremendousWand
    I FYI 24-7

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    Registered: 5/16/2013
    Posts: 657

    Re: Turn Signals and Emergency Lights not working

    IT WAS THE DAMN BATTERY!!!!

    My goodness, I've lost any hair I had left trying to diagnose the turn signal problems.  I kept thinking it was a bad switch.  Then I thought it must be bad flashers.  When the horn stopped working I was convinced that the switch wires were wrong.  Then I noticed the lights looked a little dim.  Finally checked the battery and realized it was 5 years 6 months old.  It was down to 9.6 volts and fully dead according to the guy at autozone. 

    I hooked up the battery to my truck by way of jumper cables and sure enough everything worked as it should.  Turns out all my wiring was correct and it was just a dead battery.  Sometimes the solution is right in front of your face.  With the car being a long term restoration project, I neglected to think that the battery would fade even with a plug in battery charger.  66 months is actually pretty good for that battery.

    Oh well, on to the next thing.
     

       •Thread Starter
     

    10/21/2019 7:43 AM  #4

    Bolted to Floor
    Senior 24-7 FYI Addict

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    From: Houston, Texas
    Registered: 4/01/2013
    Posts: 2,017

    Re: Turn Signals and Emergency Lights not working

    You are not alone, I know I have missed some obvious things in the past.
    A new battery is better than pulling the column and dash apart.

    John  -- 67 Mustang Coupe 390 5 speed
     

     

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