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1961 - 1966 F-100 & Larger F-Series Trucks Discuss the Slick Sixties Ford Truck

Headlight wiring questions

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Old Nov 8, 2022 | 10:01 AM
  #16  
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Originally Posted by dUb100
Thanks everyone

At the dimmer switch, I saw:

11.5V coming in (top connector)
Low beam - 11.5V at left connector, 6V at right connector
High beam - 3V at left connector, 11.5V at right connector

Is it normal to have voltage at the non-selected connector?
I would say no but have never tested one with a meter.
It is a switch to send power to 1 or the other wire.
Oh wait a minute!
Unplug the head lights and check again bet no power then right?
If no power plug in 1 light at a time and check the one the you get power has a bad ground or shorted bulb and back feeding to the plug.

That is the only thing I can think of right now.
Dave ----
 
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Old Nov 8, 2022 | 10:30 PM
  #17  
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Thanks Fuzz - I’m leaving town for a week so the results will have to wait.
 
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