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instrument lights and others out

 
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madbrad
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PostPosted: Thu Jan 08, 2015 3:10 pm    Post subject:  instrument lights and others out Reply with quote

Entering and starting up the car this morning the instrument lights, the lights in the headlight switch and the trunk button and tc button, and the lights in the front door's switches, are all off now. I don't see any burnt fuse. The radio and hvac all have their lighting just fine. where to look?

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ZSPOT
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PostPosted: Thu Jan 08, 2015 6:15 pm    Post subject:   Reply with quote

Those lights that are out, I believe are all run through the headlamp switch after it goes through the BCM. The radio and HVAC run straight from the BCM. I would start there.

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madbrad
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PostPosted: Thu Jan 08, 2015 9:55 pm    Post subject:   Reply with quote

OK that's useful, thanks!
Not sure what to do with the switch. I suspect I will see a normal looking plug on the back of it.

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Pitch Black SS
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PostPosted: Fri Jan 09, 2015 12:26 pm    Post subject:   Reply with quote

should unplug from the back. I think someone here years ago opened up the switch and cleaned the contacts inside.

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bigdog60
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PostPosted: Fri Jan 09, 2015 2:20 pm    Post subject:   Reply with quote

Pitch Black SS wrote:
should unplug from the back. I think someone here years ago opened up the switch and cleaned the contacts inside.



Yes I was one that did it....And its still working fine Very Happy

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Pitch Black SS
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PostPosted: Fri Jan 09, 2015 2:54 pm    Post subject:   Reply with quote

bigdog60 wrote:
Yes I was one that did it....And its still working fine Very Happy


Thought it was you, didnt remember

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madbrad
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PostPosted: Fri Jan 09, 2015 11:07 pm    Post subject:   Reply with quote

I just had it apart, couldn't find anything amiss in there. Put it back together, still the same. Bigdog were your symptoms the same as mine?

The dimmer knob dims all the lights, including the ones that aren't working and the ones that are. Unplugging the switch dims the working ones down to what it would be if I turned the dimmer all the way down. That is expected, but if as you say the lights that aren't working are done directly through the switch, and the ones that are working are done through the bcm, how is it that all of them are dimmed by that dimmer? Right now the dimming operates normally on the lights that are working.

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madbrad
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PostPosted: Sat Jan 10, 2015 5:16 pm    Post subject:   Reply with quote

Heh. It was the CHMSL/BACKUP fuse. Don'r know why it blew though. It's not blowing now.

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98ss
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PostPosted: Sun Jan 11, 2015 12:55 pm    Post subject:   Reply with quote

madbrad wrote:
Heh. It was the CHMSL/BACKUP fuse. Don'r know why it blew though. It's not blowing now.


Check the wiring under the backup light and see if it has rubbed thru.
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madbrad
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PostPosted: Sun Jan 11, 2015 6:50 pm    Post subject:   Reply with quote

I will thanks. I have those taillights off and on the body more often than a hooker's hotpants for various tasks. I have not seen any wear on the wires but then again I was never looking for it.Let's see if it blows again in the next few days.

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Pitch Black SS
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PostPosted: Mon Jan 12, 2015 12:42 pm    Post subject:   Reply with quote

could have pinched a wire in the last install. You never know

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madbrad
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PostPosted: Mon Jan 12, 2015 11:35 pm    Post subject:   Reply with quote

one never knows, that is a fact.

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