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Old 31st-October-2006, 07:37 PM   #1
MaStEr~X

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Dash Lights Out

I know this topic has been talked about before, but the threads I read didn't provide information that has been successful.
I was fidgiting with a courtesy light (or something?) that hangs from under the dash near the ash tray of my 72 Nova because I use it to partially light my temp gauge under the ash tray (the gauges aren't lighted).
I was driving at night at the time, and I was moving the light to get it into position to light the temp gauge when it goes out, along with all my dash lights.
Headlights/taillights/brakelights/Turnsignals/highbeams interior and exterior all work. The only lights that don't work are the dash lights and this courtesy light.
No fuse was blown. All the grounds I could find were in place.

Any ideas?

Thanks a lot.
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Old 31st-October-2006, 07:55 PM   #2
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I can send you the wiring schematic for a 72 Nova if you want it.
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Old 31st-October-2006, 08:31 PM   #3
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Any chance the dimmer section of the headlight switch is goofed up? Maybe try moving the knob that controls the brightness of the dash lamps. RM
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Old 1st-November-2006, 12:45 AM   #4
MaStEr~X

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Yeah, Nova_Guy, if you could send me a copy, that'd be great.
The dimmer switch is fine. I moved it back and forth in both directions all the way, multiple times, and the dash lights always stayed off. But of course, the dome light would come on.
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Old 1st-November-2006, 08:43 AM   #5
footjoy

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Let me know what you find out. I have the same problem on a 70 Nova

Thanks

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Old 1st-November-2006, 03:47 PM   #6
MaStEr~X

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That's funny, my brother has the same problem in his 64 Chevelle SS. I'm going to look into it more today, and if I fix it, I'll be sure to post what I did.
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Old 2nd-November-2006, 05:15 PM   #7
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Fuse

Hey Mater-x and Footjoy,
I know this must sound wrong but its not I had the exact problem. I have 1970 nova also and got into the same problem trying setup my gauges to that courtesy light. I can tell you with no doubt it’s the fuse. It’s the shortest 4G fuse and bottom of the fuse box. I had the same problem. The fuse will blow very easy, so what you got to do is get the wires all setup and then pull the light knob to check if it works or not. If it doesn’t work push the knob in and try again. Be careful cause Any small touch of the wires with other ground wires will make the fuse blow so I would suggest buying a few cause you will go through a few hehe. The fuse is so small it’s hard to tell if it’s out or not.

Last edited by 70novecain; 2nd-November-2006 at 05:21 PM.
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Old 3rd-November-2006, 01:00 AM   #8
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Quote:
Originally Posted by 70novecain View Post
I can tell you with no doubt itís the fuse. Itís the shortest 4G fuse and bottom of the fuse box. I had the same problem. The fuse will blow very easy, so what you got to do is get the wires all setup and then pull the light knob to check if it works or not. If it doesnít work push the knob in and try again. Be careful cause Any small touch of the wires with other ground wires will make the fuse blow so I would suggest buying a few cause you will go through a few hehe. The fuse is so small itís hard to tell if itís out or not.
If you have a light tester, or a short piece of wire just jump the fuse for a test. Pull the knob to turn on your dash lights, and if they don't work place a wire on each end of the fuse and check to see if your lights come on. This will spare you from buying several fuses only to find out that wasn't the problem.
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Old 6th-November-2006, 09:31 PM   #9
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70novecain, you were right. I jumped the 4A fuse with a copper wire and the lights worked. I just replaced the fuse as well.
For anyone that has this problem, check this fuse first:
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Old 7th-November-2006, 10:32 AM   #10
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Glad you found the problem but in my opinion using a piece of wire to jump where the fuse is sipposed to be is not a good idea unless you want to smoke check the wiring. Fuses blow for a reason and eliminating it even for a test is asking for trouble. Wires go up in smoke really fast if there is a short and you eliminate the fuse.
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Old 7th-November-2006, 12:24 PM   #11
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I agree it wasn't a great idea, but it was simple.
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Old 7th-November-2006, 03:54 PM   #12
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Glad to hear it worked out for ya

Excellent! glad it worked for you.
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Old 8th-November-2006, 08:54 PM   #13
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A similar, but safer, way to check fuses is with a spare park lite bulb in series with the jumper wire. If the bulb lights up when you jump the fuse, its blown. The bulb limits the current draw so it wont fry the wiring if its shorted.
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Old 1st-October-2010, 01:51 PM   #14
96t/acj

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ok, i just checked this and there is no power on this fuse, i replaced this fuse and still no power. not sure if its blown cause its to small to see. think im gonna try the jumper idea and see if i need to start chasing wires.
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Old 20th-November-2010, 01:02 AM   #15
wzuke

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Yea, I now have dash lights!

Check the following if a new bulb doesn't work: brass portion that makes contact with the circuit board may need to be cleaned and/or bent so they make good contact, bulb wires (even on new bulbs) may need to be positioned so that they are making contact with the brass contacts, brass contacts in plastic piece need to be tightened (pinched together), if they still don't work try an electronic cleaner. Check the bulbs to see if they actually work before you go to the trouble of installing them. None of my bulbs were working. Unbelievably, each had one or more of the above problems; even the only bulb that was actually burned out (and replaced with a new one) needed the electronic cleaner on the brass before it would work.
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