Jcampbell3

Need some help with the codes being generated by my OBDeleven Pro scans. Car is always in garage with engine off, but first push of ignition on when scan was done. Also no display on dash of any issues at all. Other than defective tire pressure warning sometimes, which goes away.
Has anyone experienced these codes, or know what they mean. Some are intermittent especially the "data bus communication" issues and don't seem to affect cars performance. latest scans are as follows:

19 Gateway
System description: Gateway
Software number: 4M1907468F
Software version: 0123
Hardware number: 4M1907468E
Hardware version: H22
Serial number: 0147K026018626
ODX name: EV_GatewCONTIAU736
ODX version: 003111
Faults:
U12B600 - Shiftable all wheel drive control module No Communication, (This is a new one that has me concerned, what does active mean)
Active
U107200 - Rear A/C control module No communication, (WTF?)
Active
U012700 - Lost Communication With Tire Pressure Monitor Module (This has shown up before, will deal with next service)
Active
U11DD00 - Information Display Control Head No communication (have not noticed anything wrong in information displays, can it be from changing to display current gear, ie. D1, S3 etc?)
Active
U10B500 - Microphone control module No communication
Active

46 Central Module Comfort System
System description: BCM2 MLBevo
Software number: 8W0907064EC
Software version: 0387
Hardware number: 8W0907064DC
Hardware version: 025
ODX name: EV_BCM2HellaAU736
ODX version: 014014
Faults:
U112100 - Databus missing message. (what does Passive mean, Have had this before in scans)
Passive

it seems every time I do a scan something new shows up. Reluctant to take to dealership and lose my Adaptations

Any help would be appreciated.

cheers

pkalltheway2000

Hello,
Just curious if you have ever found out what the following mean from the dealership?

U012700 - Lost Communication With Tire Pressure Monitor Module (This has shown up before, will deal with next service)
Active
U11DD00 - Information Display Control Head No communication (have not noticed anything wrong in information displays, can it be from changing to display current gear, ie. D1, S3 etc?)
Active

I have the same things on my 2019 Q7, so i thought i'd check. I googled and it brought me here and since you had the same fault codes with your car. Thanks.

Jcampbell3

Dealer Re-flashed each module, seemed to have worked. I think, the data can-bus system sometimes gets a timing delay from a module and then throws a hissy fits and subsequent code. For example, I had the tire pressure error several times, so thought I had a bad wheel speed sensor or something. However after their re-flashing it never returned. Same thing with most of the other codes.

your list is almost identical to mine! Strange eh. Not to worry, my car still drove and handled 100% both before and after getting rid of the codes.

Take it to dealer and tell them to fix.

pkalltheway2000

Thank you very much. Will ask the dealer to fix it.