Dome Light - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

 
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post #1 of 5 (permalink) Old Jan 4th, 03, 05:37 PM Thread Starter
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Join Date: Jul 2001
Location: Sequim,Wa. USA
Posts: 79
Decided to finally get to the minor problems on my car. My question concerns the dome light. It does not work. I checked voltage first at the plug terminal (behind the back seat) and found it is getting 11 volts. Then went up to the actual dome light and found it to have 10 volts. The first weird thing is that it has 10 volts w/ the door open and 6 volts w/ it closed. Should'nt it have 0 volts w/ the door closed (bad door switch?)? The second wierd thing is that it does not turn the light (fuse type)on,even w/ it getting power. I cleaned the light bulb plugs. What is the deal? I did get a new bulb from the parts store and it does have continueity. Could it be the wrong bulb? What am I missing? Thanks!!!!

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69' Z/28-R/S, X-33, Rallye Green, Chambered Exhaust,All #'s Match
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post #2 of 5 (permalink) Old Jan 4th, 03, 07:00 PM
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Location: Garden Ridge Tx. USA
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The door switch breaks the ground connection; the socket should always be hot. Sounds like you’re checking the wrong wire, look for a broken ground.

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Geezer
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post #3 of 5 (permalink) Old Jan 5th, 03, 07:04 AM
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I don't have a schematic in front of me, but I think the dome light circuit is orange and white. The orange wire is hot and the white wire goes to the door switches. As Geezer stated, the door switches are normally closed and break ground when the door is open. Your voltage readings are whacked. Is the battery giving you 12 - 13.85 volts? If so, I'd be concerned where that other volt is going. May be corroded terminals in the fuse block or other bad connection. You shouldn't be loosing more than 1 volt in the circuit.

-dnult

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post #4 of 5 (permalink) Old Jan 5th, 03, 08:44 AM
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I disagree. The door switches are normally open and close to make ground when the door is opened.
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post #5 of 5 (permalink) Old Jan 5th, 03, 09:07 AM
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If you rotate the dimmer knob until it clicks does the dome light come on? The 10 volt/6 volt reading makes sense if you are measuring the white wire to ground. Poor ground to the dome light.
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