ecm os # must match tcm os# ???? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

leanjay · 02-11-2019, 05:43 PM

so I swapped in an 6l80e trans. in to my 2010 ss in place of the m6 trans. now I have code u101 coming up. which is lost com.with trans. thru research I,ve discovered the engine and trans. must have matching operating systems? is this true? if so what exactly has to match. p.s. I have the new hp tuners mpvi2 system to work with. thanks for any help I can get.

granatl · 02-12-2019, 10:01 AM

There's likely already the correct firmware/OS in the transmission TCM, but you do need to use HPT to write your VIN#.
In the event that you do have a mismatch in levels between the ECM & TCM, I think only GM can flash the proper segments to get them to the same version.
If you have a "cool" dealer, have them reflash everything with the newest version. Then while still there, use HPT to just flash the ECM.
After you get home, do a full read of both the ECM & TCM, and then use that image from then on.

leanjay · 02-12-2019, 04:25 PM

how do check for correct o/s and levels? between the ecm and tcm?

02-11-2019, 05:43 PM	#1
leanjay leanjay Drives: 2010 camaro ss Join Date: Apr 2018 Location: rivesille wv Posts: 20	ecm os # must match tcm os# ???? so I swapped in an 6l80e trans. in to my 2010 ss in place of the m6 trans. now I have code u101 coming up. which is lost com.with trans. thru research I,ve discovered the engine and trans. must have matching operating systems? is this true? if so what exactly has to match. p.s. I have the new hp tuners mpvi2 system to work with. thanks for any help I can get. __________________ 2010 Camaro 2ss 6.2 L L99 automatic. cai and shorty headers. stock gearing and suspension.

02-12-2019, 10:01 AM	#2
granatl Drives: 2SS RS ABM A6 Join Date: Jun 2010 Location: Pahrump, NV Posts: 273	There's likely already the correct firmware/OS in the transmission TCM, but you do need to use HPT to write your VIN#. In the event that you do have a mismatch in levels between the ECM & TCM, I think only GM can flash the proper segments to get them to the same version. If you have a "cool" dealer, have them reflash everything with the newest version. Then while still there, use HPT to just flash the ECM. After you get home, do a full read of both the ECM & TCM, and then use that image from then on. __________________ Jack Bilger

02-12-2019, 04:25 PM	#3
leanjay leanjay Drives: 2010 camaro ss Join Date: Apr 2018 Location: rivesille wv Posts: 20	how do check for correct o/s and levels? between the ecm and tcm? __________________ 2010 Camaro 2ss 6.2 L L99 automatic. cai and shorty headers. stock gearing and suspension.