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2005 corvette will not crank

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Old Oct 13, 2015 | 04:57 PM
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Default 2005 corvette will not crank

Ok guys I apologize now for this because I know it will offend some of you. I have been working on a project c6 vette. I have removed all of the vette body panels and started to install 1970 camaro panels on it. Keeping all of the interior of the vette. We have already done this to a cpl c5's and everything works great. But now this one will not crank over. I have swapped computers, body control modules still nothing. Any info on what may be issue will be greatly appreciated
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Old Oct 13, 2015 | 04:59 PM
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Originally Posted by Goldie67
Ok guys I apologize now for this because I know it will offend some of you. I have been working on a project c6 vette. I have removed all of the vette body panels and started to install 1970 camaro panels on it. Keeping all of the interior of the vette. We have already done this to a cpl c5's and everything works great. But now this one will not crank over. I have swapped computers, body control modules still nothing. Any info on what may be issue will be greatly appreciated





The first one we completed
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Old Oct 13, 2015 | 05:01 PM
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Old Oct 13, 2015 | 05:42 PM
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I don't have an answer for you.. but that is quite a badass looking car.
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Old Oct 13, 2015 | 05:51 PM
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Originally Posted by schpenxel
I don't have an answer for you.. but that is quite a badass looking car.
Thank you
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Old Oct 13, 2015 | 05:52 PM
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Do you have access to a tech 2 and/or HP Tuners?
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Old Oct 13, 2015 | 05:52 PM
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The second one we built
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Old Oct 13, 2015 | 06:00 PM
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Yes my buddy has Hp tuners. I have already had him look at. It will not allow him to connect to the computer. We think it has something to do with the BCM. Is there anyway to bypass it
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Old Oct 13, 2015 | 07:25 PM
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Yeah I'd check the basics first, maybe you already have.. fuse for the ECM, check that it is getting power, etc.

Not a clue on getting rid of the BCM... you might get more help on the hptuners or ls1tech forums for something like this, though I expect it is possible.

What happens when you hit the start button? Does everything come on and it just won't turn over or does nothing happen at all? Does accessory mode work?
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Old Oct 13, 2015 | 07:58 PM
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Check to make sure that you have the VCIM connector plugged in on the back passenger side cubby hole.

If you removed the VCIM module, then you need to jump the Gm Lan bus wires on the connector or the car will not start.

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Old Oct 13, 2015 | 08:02 PM
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Everything comes on. Lights, radio etc. applied the brake. Green light come on the push button. Push the button and everything goes out. Kinda like a battery connection or battery. But I have changed and check both numerous times. I haven't checked the fuse for the ecm tho. But I will
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Old Oct 13, 2015 | 08:11 PM
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After you hit start, after you wait maybe 10 seconds, do the gauges come back on and do the sweep thing again?
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Old Oct 13, 2015 | 10:01 PM
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Yes
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Old Oct 13, 2015 | 10:05 PM
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Same thing happened on mine when I had screwed up the ECM and it wasn't working. Not to say yours is fried or anything, but I'd check out what Dano said earlier and fuses, etc. I've had mine turn over and not start, start them immediately turn off, etc. for other problems, but the only time it's done exactly that was when the ECM basically wasn't doing anything
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Old Oct 13, 2015 | 10:16 PM
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Ok thanks
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Old Oct 14, 2015 | 07:47 AM
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Originally Posted by Goldie67
Yes my buddy has Hp tuners. I have already had him look at. It will not allow him to connect to the computer. We think it has something to do with the BCM. Is there anyway to bypass it
No way to bypass the BCM, since the RCDLR is tied into it, and the RCDLR reciever is the first part of the math to tell the car that the fob is present to begin with.

Really, since the HP tuner can not communicate with the car, you have a problem in the GM lan bus to start with. So on that note, the solid block type fuse dead center of the BCM in the fuse for the GM lan bus , and start there to make sure it not blown, then start working outwards to find the problem in the GM lan bus connection points.
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Old Oct 14, 2015 | 11:09 AM
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Originally Posted by Dano523
No way to bypass the BCM, since the RCDLR is tied into it, and the RCDLR reciever is the first part of the math to tell the car that the fob is present to begin with.

Really, since the HP tuner can not communicate with the car, you have a problem in the GM lan bus to start with. So on that note, the solid block type fuse dead center of the BCM in the fuse for the GM lan bus , and start there to make sure it not blown, then start working outwards to find the problem in the GM lan bus connection points.
Thank you
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Old Oct 16, 2015 | 02:19 AM
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Would anyone know where I could find a wiring diagram for the lan buss circuit? So I could start tracking that circuit
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Old Oct 16, 2015 | 11:46 PM
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https://www.corvetteforum.com/forums...-retrofit.html
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