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BCM in c5 cut out! NEED HELP!

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Old Feb 3, 2020 | 02:08 AM
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Default BCM in c5 cut out! NEED HELP!

I recently acquired a 2003 c5 corvette and the BCM has been cut out. All wires and plug connections are there but because there are multiple wires of the same color but doing different functions I do not know how I would find the correct wire to the right pin. Anything would help! Please give any sort of insight!
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Old Feb 3, 2020 | 06:57 AM
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contact C5diag, he can help
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Old Feb 3, 2020 | 08:05 AM
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You need a factory wiring diagram.
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Old Feb 3, 2020 | 10:55 AM
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Moved to C5 Tech.
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Old Feb 3, 2020 | 11:22 AM
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Originally Posted by Clancy209
contact C5diag, he can help
how would I get in contact?
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Old Feb 3, 2020 | 01:07 PM
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Can you show a picture of what has been "cut out?"
You say the connection are still there.
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Old Feb 3, 2020 | 01:34 PM
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Originally Posted by UM Rebel
Can you show a picture of what has been "cut out?"
You say the connection are still there.

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Old Feb 3, 2020 | 01:55 PM
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Yikes!!! Does the car run? Like you, I would not know where to start on that. Good luck.
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Old Feb 3, 2020 | 05:51 PM
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Looking at what you have there, I would be tempted to locate a replacement dash harness.
I see a few splices and too many cut wires. GM has used the same wire colors coming from different directions in the harness. These wires could be on different circuits.
I assume you do have the BCM for the car?
I do see what looks like a LMC5 column lock bypass module there.

Gary
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Old Feb 3, 2020 | 09:53 PM
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Originally Posted by SilverC54me
Looking at what you have there, I would be tempted to locate a replacement dash harness.
I see a few splices and too many cut wires. GM has used the same wire colors coming from different directions in the harness. These wires could be on different circuits.
I assume you do have the BCM for the car?
I do see what looks like a LMC5 column lock bypass module there.

Gary
I have started to move along in bringing her back to life. What I’ve done is got and “wire tracer” and plugged it in to the relays to find what line it gives power to. Matching the fuse relays to the specific function each line is supposed to power. Very time consuming, stuck on a few controls but overall getting the ball rolling.
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