dome light switch - Chevy Nova Forum
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Old 6th-August-2006, 09:21 PM   #1
RallyNova
 
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dome light switch

I am wiring the plungers that are in the door jams. The plunger has 2 posts.

I have a black (+) and white (-). How does this work? Do I just hook + to one post and - to the other?

I am assumong that when the door is closed it is allowing current. and when the door opens it closes the circuit.

any help

Thanks
Bruce
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Old 6th-August-2006, 09:46 PM   #2
evldoer
 
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Unless GM changed things after 67, this is the way it works. The dome light is wired hot at all times, when a door is opened, the light is grounded via the switch/ plunger. You have 2 wires because one (on the drivers side) goes up to the light, the other to the headlight switch, and to the passenger side door. Pretty simple compared to the mustang I just wired for a guy. Get your test light out and play around. Maybe some of you other guys can confirm that this is the way it is done on the 3rd gen cars?
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Old 6th-August-2006, 11:37 PM   #3
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If this is in the driver's door jamb and both of the wire ends have 0.205" female ends and are seperate from each other then one is to activate the dome light through a ground and the other is to activate the key buzzer circuit.
The passenger side will only have one connection.

Do not worry about the pin switch sticking out more than what the old one did. Once it's connected and tightened into the hole you close the door and they self adjust to the correct depth.

Jim
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Old 13th-August-2006, 09:49 AM   #4
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74 dome light

what if i don't have a harness on the passenger side
how would wire it up yhrn since it works off of ground
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Old 14th-August-2006, 12:14 AM   #5
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Quote:
Originally Posted by lifetime62 View Post
what if i don't have a harness on the passenger side
how would wire it up yhrn since it works off of ground
You can make your own harness as it only requires one wire.

The dome light doesn't care how many ground switches are connected to it. All it takes is one to become grounded and the light will light up.

Run an 18 gauge white wire from the new passenger door jamb pin switch over to the white wire on the driver's side. Now if either switch becomes grounded the dome light will work. If you cannot get to the driver's side pin switch wire, tap into it at the headlight switch.

Jim
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