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Old 03-18-2012, 05:37 PM   #1
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Question lights on ac/heater temp blower panel

I've had my 05 TJ for a little over a year now - when I bought it the light on the fan control intermittently went in and out - the out for good - then my temp knob light - now none (on that control panel)

I pulled the panel but all bulbs are still functional - doubting the little lights wouldn't have a fuse of their own - I checked anyways - and all fuses functional - when I had the panel out I checked all connections to ensure proper seating

all the controls function - just cant see them in the dark - my only guess now is maybe the actual circuit board is malfunctioning - which if that's the case I'm sure its not worth replacing just for the lights -

thought??

tl:dr - ac control panels wont light up anymore - tried everything I can think of to make work - nada

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Old 03-29-2012, 02:05 AM   #2
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I think the bulbs are dead. How do you know the bulbs are functional?

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Old 03-29-2012, 02:51 PM   #3
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Yep, do an actual voltage check. Test light needed or a voltmeter.
See if you have power and ground at the circuit board, where the bulbs connect.
If so, then check the sockets and bulbs.

If not, start with a wiring diagram and find out where you are loosing the power/ground.

But, at least from your description it sounds like you have bulbs that one after another gave up.
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Old 04-02-2012, 08:09 PM   #4
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Couldn't find my voltmeter - I just pulled the bulbs and wired them to a 9volt battery - all checked our fine - still not working in dash though
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Old 04-04-2012, 10:46 PM   #5
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Do the voltmeter next.... I'll wait here while you try. hehe
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