- Joined
- May 16, 2014
- Messages
- 5,469
- Reaction score
- 5,935
- Location
- Melbourne, Australia
- VCDS Serial number
- C?ID=194404
I'm stuffed if I can find the previous discussion on this forum regarding the propensity for some modules on newer MBQ vehicles to report a zero-series in their code-string.
Here's an example for the BCM from an Aussie 2017 Tiguan Highline Rline which I posted in the reference section some time ago
I've been helping the owner of this vehicle recently and in the process of re-examining his BCM admap, I had a possible "road-to-Damascus" revelation (this will only make sense to catholic forum members here)
In older MQB vehicles, the facility to tell the BCM how the rotary lighting switch was configured was in the upper-nibble of Byte 7 - as in the picture below:
Now, the wording for the light switch entry has been "Anglo-sized" by whoever @ Ross Tech develops these screens (I think), but the name given to the Light switch is LDS in other diagnostic devices that I own which quote the original German text - see the portion of long coding screen below:
Anyhow, it appears that in the case of the old Byte 7 facilities, the BCM for the 2017 Tiggy has an extra bunch of new adaptation channels related to the LDS as follows:
So it seems that there has been a transfer of these functions from the code-string to adaptation channels! My quick perusal of some of the other old-code string descriptors also suggests that there are additional adaptation channels in the BCM admap with suspiciously close descriptors.
So perhaps VCDS isn't deliberately lying at all -perhaps there really aren't any code Byte/Bits in these modules!
Don
PS: the added role of adaptation channels in these newer modules might also explain why the channel count has risen to 1,800-ish
Here's an example for the BCM from an Aussie 2017 Tiguan Highline Rline which I posted in the reference section some time ago
Code:
-------------------------------------------------------------------------------
Address 09: Cent. Elect. (J519) Labels: 5Q0-937-08X-V2.clb
Part No SW: 5Q0 937 084 CG HW: 5Q0 937 084 CG
Component: BCM MQBAB H H34 0236
Serial number: 02001634700021
Coding: 000000000000000000000000000000000000000000000000000000000000
Shop #: WSC 01357 011 00200
ASAM Dataset: EV_BCMMQB 017001
ROD: EV_BCMBOSCH_017.rod
VCID: 7F4EC694E6BCD4B822-802A
-------------------------------------------------------------------------------
I've been helping the owner of this vehicle recently and in the process of re-examining his BCM admap, I had a possible "road-to-Damascus" revelation (this will only make sense to catholic forum members here)
In older MQB vehicles, the facility to tell the BCM how the rotary lighting switch was configured was in the upper-nibble of Byte 7 - as in the picture below:
Now, the wording for the light switch entry has been "Anglo-sized" by whoever @ Ross Tech develops these screens (I think), but the name given to the Light switch is LDS in other diagnostic devices that I own which quote the original German text - see the portion of long coding screen below:
Anyhow, it appears that in the case of the old Byte 7 facilities, the BCM for the 2017 Tiggy has an extra bunch of new adaptation channels related to the LDS as follows:
Code:
ENG10584-ENG10920-Außenlicht_uebergreifend-LDS_mit_AFL
ENG10584-ENG10919-Außenlicht_uebergreifend-LDS_mit_Nebel_Schlusslicht
ENG10584-ENG10918-Außenlicht_uebergreifend-LDS_mit_Nebellicht
ENG10584-ENG10921-Außenlicht_uebergreifend-LDS_mit_Standlichtstellung
So it seems that there has been a transfer of these functions from the code-string to adaptation channels! My quick perusal of some of the other old-code string descriptors also suggests that there are additional adaptation channels in the BCM admap with suspiciously close descriptors.
So perhaps VCDS isn't deliberately lying at all -perhaps there really aren't any code Byte/Bits in these modules!
Don
PS: the added role of adaptation channels in these newer modules might also explain why the channel count has risen to 1,800-ish
Last edited: