troubleshoot dash lights - no continuity at fuse terminals - Team Camaro Tech
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post #1 of 12 (permalink) Old Feb 24th, 15, 05:42 PM Thread Starter
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troubleshoot dash lights - no continuity at fuse terminals

68 camaro -
I have a new complete Factory Fit setup from AAW installed. Having issues getting my dash to light up. My dimmer switch indicator lights up when triggered from the floor switch.

Using a multimeter with continuity tone, I get a tone on all fuse terminal pairs.
All except for the dash cluster. Does this mean I got a bad fuse panel?

I'm sure AAW will make good on it, but what PITA it is to install.
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post #2 of 12 (permalink) Old Feb 24th, 15, 06:03 PM
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Re: troubleshoot dash lights - no continuity at fuse terminals

Have you turned the headlight knob to full on?

If so does the dome light come on?
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post #3 of 12 (permalink) Old Feb 24th, 15, 06:13 PM
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Re: troubleshoot dash lights - no continuity at fuse terminals

If a 68 is like a 69, the dash lights fuse is after the headlight switch. So.....if that part of the headlight switch has failed, the fuse receptacle will be dead also. Check for power on the green wire on the H/L switch plug.


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post #4 of 12 (permalink) Old Feb 24th, 15, 06:25 PM
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Re: troubleshoot dash lights - no continuity at fuse terminals

Did you remember to ground the dash segment?

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post #5 of 12 (permalink) Old Feb 25th, 15, 05:57 PM Thread Starter
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Re: troubleshoot dash lights - no continuity at fuse terminals

OK, I did a little digging around.
I think I have a bad HL switch. There's no power to the green wire (dash cluster wire) when I pull the knob out. I also tried an old HL switch I had laying around and there's no power to that green wire either.

Could this be a coincidence or is there something else in play here?
I guess my next step would be to put a new switch in.
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post #6 of 12 (permalink) Old Feb 25th, 15, 06:41 PM
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Re: troubleshoot dash lights - no continuity at fuse terminals

Set your multimter to 20v DC. Ground the black lead to the the metal dash frame and then test the green wire for voltage, not a tone. Make sure to twist the HL knob to send power to the circuit.


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post #7 of 12 (permalink) Old Feb 25th, 15, 07:32 PM Thread Starter
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Re: troubleshoot dash lights - no continuity at fuse terminals

So I think I have a ground issue.
After testing the green wire from switch, I finally got power.

Only issue I see now is one or 2 bulbs in cluster are lighting up. The circuit board tore at one point so I tried to mend it with a thin copper strip. Guess that didn't work.
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post #8 of 12 (permalink) Old Feb 25th, 15, 07:45 PM
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Re: troubleshoot dash lights - no continuity at fuse terminals

You will probably need this. http://www.camarocentral.com/1967_19..._p/das-169.htm I tried repairing my circuit board once only to find out it didn't work after I had everything re-installed. Never again.
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post #9 of 12 (permalink) Old Feb 28th, 15, 07:42 PM Thread Starter
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Re: troubleshoot dash lights - no continuity at fuse terminals

Still only one bulb lit on instrument cluster. Only the one closest to where the ground strap bolts to lights up.

New circuit board, new light switch, I even pulled the tabs up on the light bulb sockets before screwing them back in.

I don't get it. What am I missing? What else can I test or try.

Thanks.
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post #10 of 12 (permalink) Old Feb 28th, 15, 09:30 PM
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Re: troubleshoot dash lights - no continuity at fuse terminals

67-68 instrument clusters are notorious for bad grounds. Run a ground wire from the housing to the dash frame. The original ground is the clip by the high beam indicator. Most folks run the wire from that location to someplace close on the frame with enough slack to remove the cluster int he future.


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post #11 of 12 (permalink) Old Mar 1st, 15, 06:14 AM
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Re: troubleshoot dash lights - no continuity at fuse terminals

Pull each dash bulb out and using 12v try and get them to light up by themselves. They probably won't. I ended up having to screw with the contacts on my brand new bulbs to make sure they were making a connection to my original sockets.

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post #12 of 12 (permalink) Old Mar 1st, 15, 09:09 PM Thread Starter
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Re: troubleshoot dash lights - no continuity at fuse terminals

problem solved. all bulb socket contacts were dirty.
after scraping them all down they work.

Thanks.
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