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No Dash Lights or Turnover : BCM?

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Old Oct 10, 2012 | 11:12 PM
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Default No Dash Lights or Turnover : BCM?

My car will not crank nor will any dash lights come on. I have previously bypassed VATS, checked the two fuse box's in the engine bay for blow fuses with no luck. The fuel pump primes, AC works, blinkers work, horn works, and radio comes on, but no dash lights nor turn over. BCM make since for not turning over, but does the dash lights along with it not turning over sound like it is the BCM?
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Old Oct 11, 2012 | 07:17 AM
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From your description, it is unlikely that the BCM is the problem. For one, the dash illumination has nothing to do with the BCM. For another, the radio (and windows) get all their power from the BCM and you said that is working. Also, the VATS in the BCM controls both the starter relay and the fuel enable signal to the PCM and you said the fuel pump is priming so VATS is fine as well.

I suspect you have two separate problems. Check the IP DIMMER and TAIL LPS fuses in the dash fuse panel for your illumination problem. Check the starter relay for your cranking problem.
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Old Oct 11, 2012 | 08:14 AM
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Originally Posted by WhiteBird00
From your description, it is unlikely that the BCM is the problem. For one, the dash illumination has nothing to do with the BCM. For another, the radio (and windows) get all their power from the BCM and you said that is working. Also, the VATS in the BCM controls both the starter relay and the fuel enable signal to the PCM and you said the fuel pump is priming so VATS is fine as well.

I suspect you have two separate problems. Check the IP DIMMER and TAIL LPS fuses in the dash fuse panel for your illumination problem. Check the starter relay for your cranking problem.
Ok, I check both the IP dimmer and the Tail LPS and both were good. I switch the relays out as well and still no luck..

Heres a video I took:
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Old Oct 11, 2012 | 08:16 AM
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bad ignigtion switch? its like it only hits the accesory postition.
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Old Oct 11, 2012 | 08:36 AM
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Originally Posted by Jteske88
bad ignigtion switch? its like it only hits the accesory postition.
It could be the ignition switch.. hmmm...
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Old Oct 12, 2012 | 10:48 AM
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Well changed the ignition switch and nothing. What else could it be?
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Old Oct 12, 2012 | 01:04 PM
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https://ls1tech.com/forums/nitrous-o...fire-help.html

FOUND THE PROBLEM! Damn gauge fuse....
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Old Oct 12, 2012 | 01:07 PM
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The GAUGES fuse has nothing to do with dash illumination... are you sure you didn't mean the warning lights weren't working?
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Old Oct 12, 2012 | 02:47 PM
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Originally Posted by WhiteBird00
The GAUGES fuse has nothing to do with dash illumination... are you sure you didn't mean the warning lights weren't working?
No... All the gauges in the dash were not working.. I posted a video.
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Old Aug 27, 2013 | 11:38 AM
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MINE IS DOING THIS EXACT SAME THING as in the video and my steering collumn is in pieces as we speak because a mechanic is trying to replace the ignition switch.. you mean to tell me that isnt going to fix it?!
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Old Sep 24, 2013 | 11:58 PM
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Originally Posted by z28princess
MINE IS DOING THIS EXACT SAME THING as in the video and my steering collumn is in pieces as we speak because a mechanic is trying to replace the ignition switch.. you mean to tell me that isnt going to fix it?!
Get it fixed?
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Old Dec 27, 2013 | 07:37 AM
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Yessir. It was just the gauge cluster fuse. I'm sorry I didn't realize I wouldn't get a notification if someone replied
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Old Dec 28, 2013 | 10:26 PM
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Originally Posted by z28princess
Yessir. It was just the gauge cluster fuse. I'm sorry I didn't realize I wouldn't get a notification if someone replied
lol no problem. Well I'm glad you got it fixed!
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