courtesy light control+ - Team Camaro Tech
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post #1 of 4 (permalink) Old Nov 17th, 08, 08:11 AM Thread Starter
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courtesy light control+

I know the courtesy lights should come on when door opens. Shouldn't they turn on when the headlight switch is turned(twisted) to one side? This is for a '68 with deluxe int. If courtesy lights don't turn on should headlight switch be replaced? Also doesn't the headlight switch act as a dimmer for dash lights?

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post #2 of 4 (permalink) Old Nov 17th, 08, 06:55 PM
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Re: courtesy light control+

The headlight switch connects a ground just like in the doors to activate the dome light when it is twisted fully one way. I can't remember if it's fully clockwise or counter clockwise but when it is turned fully one way or the other it will hit a detent and then click on the dome light so to speak and stay there until it is rotated the other way coming off of that detent. On my Nova's there is a cam that rotates and pushes an arm on the headlight switch assembly that is part of the dome light circuit. On mine being mounted onto a plastic dash there is either a ground wire or a metal tab off of the headlight switch that has to be grounded to allow the headlight switch to turn on the dome light.
Also built into a headlight switch is a dimmer circuit (variable resistor). This on my Nova is a wrapping of wire around a clay type insulator and a wiper arm on the headlight switch assembly wipes on it at different points to vary the voltage that the dash lights get. I also believe without looking at a wiring diagram but it varies the ground and if a car had no dome light and no dash light dimming activation by the headlight switch it might be missing a ground connection ?.

Jim

1974 Spirit Of America Nova (being restored), 1973 Nova Custom, 1968 Chevy II (Garage Find 2012)

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post #3 of 4 (permalink) Old Nov 18th, 08, 04:18 AM
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Re: courtesy light control+

Clockwise rotation on the headlamp switch to increase dash light brightness and turn on the dome light.

Dash lights come on in PARK and LAMPS, courtesy lights come on any time knob is turned fully clockwise.

If you have to replace the headlamp switch, disconnect negative cable at the battery, reach up behind the dash to the light and depress the button, top most likely or side maybe, and pull out the knob & shaft. Then remove the bezel nut from the front of the dash and unplug the connector, drop out the switch. Reassemble in reverse, except the button does not have to be depressed for insertion.

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post #4 of 4 (permalink) Old Nov 18th, 08, 07:17 AM Thread Starter
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Re: courtesy light control+

Thanks for Feedback guys. Since UT Longhorns not playing this weekend I will follow thru on your suggestions. Will let you know what happens.

VCan2-68'vert
68vert/3spd/base
78TA/400
81GMCstepside-streetcoupe



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