BCM

Leon Owner/Technician Berryville, Arkansas Posted   Latest   Edited  
Question
Driveability
Electrical
2010 Chevrolet Suburban 1500 LS 5.3L (3 LC9) 6-spd (6L80)
No Power Liftgate
No Speedometer
Abs Light On
Check Engine Light On

Hello all, have this sub here (VIN: 1GNUKKE33AR102178) Customer states that she got out from her job to go to work and it would not start (crank no start) she towed it home, her husband's friend came over "hooked his computer to it and it told him which computer was bad" :)) so they got a used BCM off of ebay plugged it in, and the vehicle started and ran. They drove it to a dealership to have it programmed. Ever since they installed that BCM, the rear lift gate does not open, the speedo does not work, service suspension system alert on in the dash, park assist off alert is on, side blind zone alert off alert is on in the DIC.. check engine light on ABS light on, Boat loads of codes blah blah blah.. What I am asked to focus on is the power liftgate is inop. it does not try, grunt, snort, smoke, nothing.. DTC stored in the BCM, B1001 Option Configuration Error Variant Not Programmed.

The question I have is this, has the dealer programmed this module wrong? did the donor vehicle not have a power liftgate, and cannot be programmed to accommodate one? If the dealer programmed it wrong and/or misconfigured it, can I reconfigure it with my J2534 tool? Or is the customer screwed, and will need to buy a new module and have it configured correctly??

Tanks in advance!!

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Timothy Owner/Technician
Metter, Georgia
Timothy Default
 

Put your VIN into this link tis2web​.​service​.​gm​.​com/tis2web You can find the calibration numbers that are supposed to be in the BCM for that VIN number. Compare them to the current calibration numbers that are stored in the BCM and see if they match or are different. If they match then likely it was programmed properly. If not then programming is not…

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Leon Owner/Technician
Berryville, Arkansas
Leon Default
 

will I then use my J2534 tool to check the calibration files are in the BCM? or what is the procedure for that?

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Timothy Owner/Technician
Metter, Georgia
Timothy Default
 

Do you have an Autel Scan tool or Tech2 or Tech2Win? Go into the the ECU information of the BCM and it should list the calibration numbers. If you get the SPS subscription you can run that through the J2534 tool and check calibrations that way as well. Go into the programming procedure for the BCM and it should show what is currently in the module.

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Allan Owner
Sterling, Virginia
Allan Default
 

A good chunk of GM’s cannot use a used BCM. When programmed/configured you cannot change the options because it is locked after a certain number of key cycles. I say start with a new one and program it

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Michael Manager
Marysville, Washington
Michael Default
 

I agree with Tim, I have put used and reman body modules in gm products and getting the right calibration files can be tricky. Sometimes I even have to find the option placard in the vehicle to manually turn on certain systems only listed there. I have always been able to do this with my M-VCI. I know this works in that year cause I just did reprogramming on a 2017 Cadillac from collision damage…

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Caleb Technician
Mishawaka, Indiana
Caleb Default
 

Make sure the VIN stored in the BCM is the same as the one on the windshield. If it's not you could try to program it again an see if any thing changes. If it's the correct VIN quote a new BCM and walkaway. They are actually pretty cheap.

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Anthony Technical Support Specialist
Kirkwood, Pennsylvania
Anthony Default
 

Hi Leon: I'm confused. Why would you ask if your customer is screwed? The way that I see it is: The vehicle is fairly high end. The vehicle owner purchases an electronic component on eBay. There appears to be only 1 BCM listed for it. There are no calibration options for the BCM with that VIN. Based on what I just wrote, you know the dealer tech would've had to be a magician to screw up…

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Geoff Diagnostician
Lahaina, Hawaii
Geoff Default
 

this is where the "email privately" links on iATN​.​com are really useful for me to make jokes, Guido.

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Anthony Technical Support Specialist
Kirkwood, Pennsylvania
Anthony Default
 

Hi Geoff: You know where to find me. Guido

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