Headlight problems, need help
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Joined: Jul 2000
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From: South Dakota
Headlight problems, need help
When I pull my switch all the way out to turn on the headlights, nothing happens. I can halfway pull the switch to get my parking lights on, also the blinkers do not work. I do have tail-lights and brake lights. Any ideas? Its a '67 F100.
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Joined: Jan 2001
Posts: 57,025
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From: Virginia
Pull the headlight switch all the way out, and then check for voltage at the dimmer switch. I am assuming your truck has the dimmer switch in the floor. It should have three wires. One going in from the headlamp switch, and two going out. One for the high beams, and one for the low beams. If you have voltage going in, but none on either of the other wires, then I would say the dimmer switch is bad.
If you have nothing down at the dimmer switch, then pull the headlight switch out of the dash, and check for voltage coming in. You have several different voltage sources coming into the headlamp switch, and sorry I don't know the correct color wire for the headlamp voltage source. Of course if you find the correct wire coming in, and it has voltage, then the headlamp switch is bad.
If you have nothing down at the dimmer switch, then pull the headlight switch out of the dash, and check for voltage coming in. You have several different voltage sources coming into the headlamp switch, and sorry I don't know the correct color wire for the headlamp voltage source. Of course if you find the correct wire coming in, and it has voltage, then the headlamp switch is bad.
