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How do I program the body control unit for a 2008 cadillac…

Customer Question
how do I program the...
how do I program the body control unit for a 2008 cadillac its
Submitted: 4 months ago.Category: Cadillac
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Answered in 1 minute by:
3/21/2018
Cadillac Mechanic: Jerry Newton, Cadillac Technician replied 4 months ago
Jerry Newton
Jerry Newton, Cadillac Technician
Category: Cadillac
Satisfied Customers: 5,694
Experience: ASE Master Technician, L1, Master GM Technician. Over 20 years of bumper to bumper GM experience.
Verified

The body control module must be programmed by the dealer. They use specific software and hardware to program these components, a new BCM won't do anything that it's supposed to do, because it comes blank, with no software in it.

What are you trying to fix by replacing it?

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Customer reply replied 4 months ago
My brake lights stay on all the time without the brakes being touched. I replace the brake switch but problem codes kept saying BCM
Cadillac Mechanic: Jerry Newton, Cadillac Technician replied 4 months ago

I see. It may or may not need a BCM, I would have done some scan tool diagnostic work first before condemning it. All three stop lights are staying on, at least with the old BCM?

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Customer reply replied 4 months ago
now I cannot start the car with the new BCM
Customer reply replied 4 months ago
How do I get the car running to get to someone who can program it
Cadillac Mechanic: Jerry Newton, Cadillac Technician replied 4 months ago

You'll have to put the old BCM back in, drive it to the dealership, hand them the keys and the BCM, and let them do it for you. You can install it at the dealership if you want, but it will be dead wherever it's sitting at that point, and the mechanic will likely want this in his work bay, not out in the parking lot.

Please take a moment to rate my answers by clicking on the stars at the top of the page, that's how I get compensated. If you need more help, just let me know, I am happy to follow up.

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Cadillac Mechanic: Jerry Newton, Cadillac Technician replied 3 months ago

Did you get this worked out?

Please take a moment to rate my answers by clicking on the stars at the top of the page, that's how I get compensated. If you need more help, just let me know, I am happy to follow up.

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