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MoparMadnz

1950 Buick Backup Light Stuck On

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Hi, new owner of a 1950 Buick here. The battery keeps going dead lately and I just noticed the driver side backup light and driver side front turn signal light are stuck on, even with the ignition turned off. I tried playing around with the different switches, and pressing the high beam switch turned them off briefly - but the lights came back on the next time I started the car. Also, the driver side blinker isn't working, but the passenger side is.  Anyone have a clue what the culprit might be? Thanks

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Benefits of AACA Membership.

That is the signal light.   Backup light is in the bumper.    Try replacing the "blinker " unit. It is in the fuse panel just beneath the dash on the left side of the steering column.

 

  Ben

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1939, I will re-post in that section. I think I do have a file of the wiring diagram on my computer. Ben, you're right. I meant to type "signal light" - thank you.

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You have a short in your wiring.  Those are slow going to find, but you can do it.  You will need a complete factory wiring diagram.  Trace it to see what is common to both lights, but not to the lights on the right side.  Take a test light and start looking for what is hot and what is not.  

 

Good luck on this.  It's very frustrating but is most likely a simple bare wire grounding on something.  BTW the headlight switch has power to it even if the switch is off, so that is an obvious place to start.

 

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My gut tells me to look at he turn signal switch, or possibly wiring there of. (steering column)

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On my ‘51, the backup light switch got sticky and would fail to release when the transmission from reverse, so the lamps would stay on. I suppose age and lack of regular driving were the cause.

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