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I had a BCM replacement

Tiny
SHEM5
  • MEMBER
  • 2010 CHEVROLET TAHOE
  • 5.3L
  • V8
  • 2WD
  • AUTOMATIC
  • 200,000 MILES
I had a BCM replacement due to truck's ABS and theftlock light staying on which prevented truck from starting. After new BCM I drove for like 30 minutes and the theftlock, ABS and TPMS light came on. The gauges in the cluster started moving up and down but the truck was running fine. When I got home the radio went off while truck is running. After turning off truck won't start unless I wait for like 10 minutes and all the lights are gone. They come back on after driving for a while.
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Friday, January 29th, 2021 AT 10:30 PM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
It sounds like the BCM went out again or there is a bad connection somewhere. To be sure lets do a CAN scan which is the future of automotive repair you can get a CAN scanner from Amazon for about $50.00. here is a video to show you how:

https://youtu.be/InIlnsjOVFA

and

https://www.2carpros.com/articles/how-to-check-wiring

Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.
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Sunday, January 31st, 2021 AT 11:00 AM

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