This is from Etis I cant See The TCU Module updates done 11/08/20 for 12v issueIt is easy to check on ETIS what versions of the various modules software you have. Ask the dealer to tell you the software versions for your car for the TCU (SH), PCM (ERP), ABS (NT), SOBDM (AL), SOBDC (GN) and BECM (DF) modules. This will take them 5 minutes once logged in to ETIS. The letters in brackets are the final letters in the software package and are the most up to date versions being applied to cars now. They work alphabetically so for example you may be on TCU version ending SF which was an update applied to cars in June / July that turned out not to be the whole fix. If you don't have those versions (especially TCU, ABS and PCM) then you will still be at risk of the 12v problem.
However if the battery has been flattened by the problem it needs testing as the 12v battery may be damaged. There are plenty of people out there with batteries recording below 12.67v at rest (once all systems have shut down) because the battery has been damaged by constant discharging. If you have the latest updates I would get the battery tested as that may be all it is now. Driving the car is not a quick way to recover the 12v battery, and if it is damaged it will not recover it at all.
Some dealers are miles away from being on top of this unfortunately, but there is no excuse as all of the information is there for them.
|IPC||720||Instrument Panel Cluster (IPC)||LV4T-10849-DKM||LV4T-10849-DKM||LV4T-14C026-CA||LV4T-14F094-DAA||11-08-2020|
|ABS||760||Anti-Lock Brake System (ABS) Module||LX6C-2C219-MD||LX6C-2C219-MH||LX6C-2D053-NS||LX6C-14F065-MA||11-08-2020|
|PCM||7E0||Powertrain Control Module (PCM)||LX6A-12A650-DGA||LX6A-12A650-EPM||LX6A-14C204-EPM||LV4A-12B684-CA||11-08-2020|
|OCS||765||Occupant Classification System Module (OCSM)||null||01-01-1970|
|BCM||726||Body Control Module (BCM)||LU5T-14B476-BCF||LU5T-14B476-BCF||LU5T-14C184-ACF||HU5T-14F141-BCC||11-08-2020|
|PSCM||730||Power Steering Control Module (PSCM)||LX6C-3F964-FG||LX6C-3F964-FG||LX6C-14D003-AF||LX6C-14F079-AE||11-08-2020|
|HCM||734||Headlamp Control Module (HCM)||LV4B-13C148-AE||LV4B-13C148-AE||LC5B-14D063-CA||JX7B-14F110-AA||11-08-2020|
|RCM||737||Restraints Control Module (RCM)||LV4T-14B321-SB||LV4T-14B321-SB||KX7T-14C028-AA||LV4T-14F136-SA||11-08-2020|
|This page allows you to view the current state of the vehicle modules and shows the history of changes to vehicle modules and software.|