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Tail Light Out Need Help Please

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Old Jun 17, 2017 | 06:55 PM
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deich
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Tail Light Out Need Help Please
Drivers side tail light is out, but only the brake light.

The blinker function works as well as running lights/ when the lights are on it is lit. It just doesnt light when the brakes are applied.

All other lights function properly around the whole truck.

Any help is appreciated. My brain inverts itself when I see a wiring diagram.

Thanks, D
 
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Old Jun 17, 2017 | 07:01 PM
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HIO Silver
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Swap bulbs!...
 
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Old Jun 18, 2017 | 12:07 PM
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lasermike
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You left out the year which is quite helpful so I randomly picked the diagram for '76.

If the light also doesn't work with the hazards on, it's the turn signal switch.

Michael
 
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Old Jun 18, 2017 | 12:59 PM
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67xr7kat
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Sounds like a bad ground at the driver's side tail lamp assembly.
 
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Old Jun 18, 2017 | 03:11 PM
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Confirmed its the turn signal switch... If i manually centered the switch with the braked pedal depressed the light came on steady.

Thanks all
 
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Old Jun 19, 2017 | 12:49 AM
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lasermike
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From: Des Moines, Washington
Sweet!

If you'd like, I can trace the circuit for you using my MS paint skills so you can see how I figured it out.

Michael
 
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Old Jun 19, 2017 | 09:34 AM
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deich
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LOL at those sweet MS paint skills.... Electric makes my head explode.
 
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