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!!
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…
will I then use my J2534 tool to check the calibration files are in the BCM? or what is the procedure for that?
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.
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
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…
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.
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…
this is where the "email privately" links on iATN.com are really useful for me to make jokes, Guido.