1974 bronco turn signals

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biggjay
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1974 bronco turn signals

Post by biggjay » Tue Mar 08, 2016 1:42 am

signals were working fine now all of a sudden nothing. anyone have a diagram so I can trace the short. i get a ground signal at the flasher when i use the the turn signal and I'm almost certain it should be positive. also have a wire on under the dash that says do not cut resistor that gets pretty darn hot when the ignition is on any ideas why ?

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Stan
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Post by Stan » Wed Mar 09, 2016 1:29 pm

Can't tell ya about the turn signal but the resistor wire is in the "run circuit " of the ignition system. When you turn the key to "start" it bypasses this resistor and supply's a full 12 volts to the coil then when you release the key power to the coil goes thru this resistor wire. Factory ignition and coil weren't designed to have 12volts while on "run" . Sometimes You can remove/replace this resistor if you've gone to an aftermarket ignition system that doesn't require it.
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silver dollar
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Post by silver dollar » Wed Mar 09, 2016 2:21 pm

Do your brake lights still work? If not it is probably your turn signal switch.
Have you replaced the flasher? That would be the first thing to check.

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Formerjughead
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Post by Formerjughead » Sat Mar 12, 2016 11:44 am

Check your bulbs and fuse with a continuity meter. My guess is that you have a blown bulb and part of the element are grounding against the base, so take out all your bulbs and test them. While you are at it male sure you have a good ground at the lamp housing.

I have a continuity setting on my volt meter
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