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Speedometer not working after LMC5 install

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Old Oct 20, 2025 | 02:06 PM
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Default Speedometer not working after LMC5 install

I recently got the dreaded column lock message (2000 C5 six speed), and remedied it with the LMC5 kit. This solved that problem, but my speedometer quit working immediately after. Richard from Compliance Parts has been open to helping, but no solution yet. From what I understand the modifications to install the LMC5 would have absolutely nothing to do with the speedo. I did have the plastic knee bolster off along with the plastic cover over the steering column because I had to give the column lock motor a couple of whacks to get it to release. But I don't believe anything speedo related goes through there. I have no codes relating to the vehicle speed system, and all the other gauges work. I've also checked every fuse in the footwell and the engine compartment. I've triple checked the LMC5 install, and all the other wiring in the area of the BCM. I'm really at a loss here, any insight would be MUCH appreciated.
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Old Oct 20, 2025 | 04:30 PM
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Here are my codes:

TCS - C1276 H, U1016 H

BCM - B0502 H C, B0507 H C, B2482 H C, B2587 H, B2592 H, U1016 H

SDM - U1016 H

LDCM - U1016 H

SCM - U1016 H

RFA - U1096 H, U1064 H, U1016 H

RDCM - U1016 H
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Old Oct 20, 2025 | 04:40 PM
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Unplug the IPC and plug it back in. This may solve your issue.

Gary
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Old Oct 20, 2025 | 06:55 PM
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Good luck if you have some electrical experience.




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Old Oct 21, 2025 | 05:33 AM
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Does the speedometer sweep with the other gauges when you turn the car on? If it doesn't sweep it's a cluster issue.
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Old Oct 21, 2025 | 04:38 PM
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Moved to C5 Tech for more assistance.
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Old Oct 21, 2025 | 05:01 PM
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Originally Posted by Vetteman Jack
Moved to C5 Tech for more assistance.
So two threads on this now ....


https://www.corvetteforum.com/forums...5-install.html

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