[2010trouble]

hi all, i have an issue with my 2010 4wd colorado. the bcm acted up and caused issue with hazard and signal lights and i had a shop replace it with a used one they located. They so called flashed the unit before installing. afterwards i ended up with change oil notification, air bag light fault light, check engine light, and the oem radio locked. they cleared the faults on the cluster, the radio had to be unlocked by a gm service center. the odometer now reads the mileage from the vehicle the used bcm came from i assume (108,000 km on my vehicle) but displays 198,000 km now. I have read about calibrating the odometer but unsure if it will work. would like to get sirius xm back but GM and siruis seem to be no help.
Anyone have ideas about what is causing this mess? Could it be the Vin # messed up? would that fix the sirius xm issue? how about the mileage is there a way to turn back to what it should be? use of calibration equipment or flash another bcm?
thanks appreciate any help before i have to head to dealers. vehicle is well maintained and i hate to leave in such a mess.

 

[cart7881]

Welcome to the Nation.

It's unfortunate that you didn't find this site before you had the work done. The odometer issue is well known. One way I know to correct it would be to get the memory in the BCM changed and the Dealer most likely won't touch it without proof of actual mileage. Then you would need to find a cluster with less than the original miles. The cluster will forward update, but not backwards. It will add, but not subtract. Whatever method is used to correct the odometer reading is going to require a cluster replacement.

Another method would be to recover the original BCM and a find a cluster with less than original miles. Install both and then find a more reputable repair shop to correct the lighting issues If a BCM replacement was necessary you would know to find one with less mileage. The BCM now installed was obviously never properly programmed. If it had been done properly you would still have the odometer problem, but none of the others. That's assuming the used BCM didn't come with those problems built in.

I don't think going to a Dealer, at this time, would be beneficial, unless you have the original BCM. They aren't going to mess with the odometer without proof of prior mileage. Dealers don't mess with used parts so it could get real expensive, real quick. You might get them to reprogram the BCM without messing with the odometer. The radio can be unlocked, but if it is not getting the correct VIN signal from the BCM it will have limited functions. That might help with the Digital Radio problem.

Good luck, keep us posted.

 

[Freeballin]

They should have been able to clone the information from the original BCM to the newer unit.

BCM Body Control Module DATA TRANSFER SERVICE For 08-12 Canyon Colorado H3 | eBay

 

[2010trouble]

Welcome to the Nation.

It's unfortunate that you didn't find this site before you had the work done. The odometer issue is well known. One way I know to correct it would be to get the memory in the BCM changed and the Dealer most likely won't touch it without proof of actual mileage. Then you would need to find a cluster with less than the original miles. The cluster will forward update, but not backwards. It will add, but not subtract. Whatever method is used to correct the odometer reading is going to require a cluster replacement.

Another method would be to recover the original BCM and a find a cluster with less than original miles. Install both and then find a more reputable repair shop to correct the lighting issues If a BCM replacement was necessary you would know to find one with less mileage. The BCM now installed was obviously never properly programmed. If it had been done properly you would still have the odometer problem, but none of the others. That's assuming the used BCM didn't come with those problems built in.

I don't think going to a Dealer, at this time, would be beneficial, unless you have the original BCM. They aren't going to mess with the odometer without proof of prior mileage. Dealers don't mess with used parts so it could get real expensive, real quick. You might get them to reprogram the BCM without messing with the odometer. The radio can be unlocked, but if it is not getting the correct VIN signal from the BCM it will have limited functions. That might help with the Digital Radio problem.

Good luck, keep us posted.

thanks for the info Cart. i do have the original BCM was wise enough to grab from the shop that did the work. all the idot light problems now corrected. only issue remains is sirius xm that requires programming which i will discuss with the gm dealer tomorrow. Not able to locate cluster with less miles than vehicle as its mileage is pretty low considering age. 'll discuss options with dealer on this but as you stated no way to turn back odometer so i might have to live with it unless there are clusters that are reprogrammed as new and zero'd in mileage. maybe that will work. im going to dig further into this and see. appreciate your insight and recommendations. keep you posted

 

[2010trouble]

They should have been able to clone the information from the original BCM to the newer unit.

BCM Body Control Module DATA TRANSFER SERVICE For 08-12 Canyon Colorado H3 | eBay

thanks for link. i seen that one and was wondering. kind of timid about letting the orginal go considering mail service these days can afford to lose it in the mail. i found a link on web 15886074 W/ PROGRAMMING Chevrolet Colorado BCM BCU Body Control Module (modulemechanics.com) for completely refurbished bcm's all i had to supply was vin and mileage. im considering this as an option. then i think i need new cluster to go with it. appreciate the reply. thanks for helping me out.

 

[cart7881]

You were very smart to not let the original BCM get away. Yes, it would be a big gamble to trust it to any shipping organization. A Dealer could use it to verify original mileage, if necessary.

That's a pretty steep price for a BCM. There aren't any programming sources like that on your side of the border? I would make personal contact with them to insure that the mileage would be set. It's against the law to tamper with that, but they may have a license. It would be kind of disappointing to spend $500 just to get access to Sirius.

Keep us posted, thanks.

 

[2010trouble]

Welcome to the Nation.

It's unfortunate that you didn't find this site before you had the work done. The odometer issue is well known. One way I know to correct it would be to get the memory in the BCM changed and the Dealer most likely won't touch it without proof of actual mileage. Then you would need to find a cluster with less than the original miles. The cluster will forward update, but not backwards. It will add, but not subtract. Whatever method is used to correct the odometer reading is going to require a cluster replacement.

Another method would be to recover the original BCM and a find a cluster with less than original miles. Install both and then find a more reputable repair shop to correct the lighting issues If a BCM replacement was necessary you would know to find one with less mileage. The BCM now installed was obviously never properly programmed. If it had been done properly you would still have the odometer problem, but none of the others. That's assuming the used BCM didn't come with those problems built in.

I don't think going to a Dealer, at this time, would be beneficial, unless you have the original BCM. They aren't going to mess with the odometer without proof of prior mileage. Dealers don't mess with used parts so it could get real expensive, real quick. You might get them to reprogram the BCM without messing with the odometer. The radio can be unlocked, but if it is not getting the correct VIN signal from the BCM it will have limited functions. That might help with the Digital Radio problem.

Good luck, keep us posted.

 

[2010trouble]

hi No luck with dealer on this yet. i wanted to learn something first. the vin number impresses on the eprom on the bcm. if they flashed the donor unit with the data (vin/mileage) from my original bcm then all would have been fine wouldn't it? xm radio would have worked? mileage increase i assume that wasnt transferred hence the increase now on the odometer. i purcahsed an odb2 scanner and hooked up. got the vin number associated with my vehicle. question is this. is the scanner pulling it from the ecm or bcm? would the donor bcm have still worked if my vin # wasnt flashed onto it? if it wasnt then the xm radio would not work (which is the case now) but if it was flashed with my vin, then why isnt xm radio work now if it sees original vin # on the bcm? the dealer did unlock the radio (am/fm) but nothing done with xm radio. just want some advise before i have to ask them to unlock it (if they are able) or pull the unit and send out the have the eprom chipped on the radio erased as it it is new again.
thanks.

 

[cart7881]

Are you confident that the shop, that procured the used BCM, got the correct BCM and actually did a reprogram on it? You haven't mentioned it, so I'm assuming that you do not have the original BCM. Two things I'm not sure of. 1. If the engine will run without the correct VIN in the BCM and 2. What the source of for the VIN that your scan tool is showing.

The problem with the radios is obviously connected to the replacement BCM. You didn't report any problems with them prior to that. The Service Manual indicates that even if the radio is unlocked, it will not have full function until the VIN in the BCM matches the VIN stored in the radio. Did the Dealer give you a detailed invoice regarding just what they did to the radio?

Your scan tool doesn't show any codes for the radio? I would think something would show up if the VINs didn't match.

 

[2010trouble]

hi No luck with dealer on this yet. i wanted to learn something first. the vin number impresses on the eprom on the bcm. if they flashed the donor unit with the data (vin/mileage) from my original bcm then all would have been fine wouldn't it? xm radio would have worked? mileage increase i assume that wasnt transferred hence the increase now on the odometer. i purcahsed an odb2 scanner and hooked up. got the vin number associated with my vehicle. question is this. is the scanner pulling it from the ecm or bcm? would the donor bcm have still worked if my vin # wasnt flashed onto it? if it wasnt then the xm radio would not work (which is the case now) but if it was flashed with my vin, then why isnt xm radio work now if it sees original vin # on the bcm? the dealer did unlock the radio (am/fm) but nothing done with xm radio. just want some advise before i have to ask them to unlock it (if they are able) or pull the unit and send out the have the eprom chipped on the radio erased as it it is new again.
thanks.
[/QUOTE.

Are you confident that the shop, that procured the used BCM, got the correct BCM and actually did a reprogram on it? You haven't mentioned it, so I'm assuming that you do not have the original BCM. Two things I'm not sure of. 1. If the engine will run without the correct VIN in the BCM and 2. What the source of for the VIN that your scan tool is showing.

The problem with the radios is obviously connected to the replacement BCM. You didn't report any problems with them prior to that. The Service Manual indicates that even if the radio is unlocked, it will not have full function until the VIN in the BCM matches the VIN stored in the radio. Did the Dealer give you a detailed invoice regarding just what they did to the radio?

Your scan tool doesn't show any codes for the radio? I would think something would show up if the VINs didn't match.

Hi thanks for reviewing my post. i checked the installed bcm, it has same part number as the original unit which i still have. part number is 15886074. if they did flash it correctly with vin and mileage then my odometer would have remained at the 118,000 km value, so fair enough to say they didnt transfer that data. the xm is linked to body control module and radio from what i have read. all 3 should match if system is to work. now that xm is locked i assume they didnt transfer vin # either. the 3rd party gm dealer only unlocked radio and did not touch xm. i can pull the cluster and send with original and used bcm's and get mileage corrected by people on internet and have the unit flashed correctly at the eprom level. to transfer all data from original. as well i might need to get radio unlocked again with correction of vin#. it might be the only way to see the vin# on the used unit which would confirm what they did. its been a headache. any suggestion is greatly appreciated.
would the pass key programming have to be done again? what about other modules on the same bus? you think those might run into any faults with original vin # on the bcm after flashing again? hate to have to tow it to garage.

 

[cart7881]

Well, if you have the old BCM, why don't you just plug it in and see if the radios work? You can always swap it back. The most you might get is a couple of codes to clear. That should confirm your suspicions about whether or not the used BCM was properly configured and if it is the source of your problems. Another thing to keep in mind is that the used BCM is just that, used. It may have had some previous issues when it was installed in your truck. Note: For what it's worth, the Service Manual says to disconnect the Black connector first and reconnect the Black connector first. Doesn't say why. I'm just passing info. If you do put the old unit back, before you remove it again, just for the hell of it, check the turn/hazard lights.

The mileage issue may be a sticking point. Not everyone has the capability to change an odometer reading. It would probably be more beneficial to find someone, other than a Dealer, to help get things straightened out. Most places on the internet will repair/program your unit or exchange your BCM for one that is programmed. You would want to make contact with them to clarify what exactly can be done about the mileage in both the BCM and the cluster. Working with a Dealer will be problematic. They will want to sell you a new/rebuilt BCM.

I'm lucky that I have a place about 5 miles from me that provided me with a programmed TCM for a couple hundred bucks. Problerm is they only do ECM/PCMs and TCMs. Plug and play is a good thing.

Keep us posted, Thanks