2021 Arteon -- strange adaptation behavior on 5F (Infotainment)

   #1  

jphughan

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I just tried working on a friend's 2021 Arteon to implement some coding and adaptation changes. For a few ECUs, the Long Coding Helper said it didn't recognize it, which I thought might happen for a new vehicle. But I was able to apply adaptations to various modules as expected, until I got to 5F Infotainment. I was trying to apply adaptations there to remove the menu access restrictions that apply while moving. For the first attempted change to that module, I saw the prompt about the workshop code asking whether to try to use VCDS defaults, use the existing info, or cancel. First I chose to use the existing info (by clicking No), which resulted in an error message. Then I tried again choosing to use the VCDS default values (by clicking Yes), and this time I first got an error dialog, but after clicking OK to the error dialog, the regular SUCCESS dialog box appeared indicating that the adaptation was accepted -- and when VCDS re-read the value, it showed the new value. On all subsequent adaptation value changes, I no longer saw the Yes/No/Cancel prompt, but I saw this same behavior of an error message followed by a success message and updated value. But unfortunately, upon testing afterward, it seems that the changes didn't take effect, since the various infotainment screens were still actually locked when driving.

I made an auto-scan of this vehicle prior to any coding and posted it here. Interestingly, the scan for the 5F Infotainment module does not include the workshop code line at all, which many other modules have. I won't be able to recheck this vehicle for a little while, but I figured I'd post this now in case any of the information I've already got is useful. I was using VCDS 20.12.0 with a HEX-NET running CB 0.4529 and FW 1.53, connected to my PC via USB.
 
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   #2  

Uwe

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That is indeed strange:
Code:
Address 5F: Information Electr. (J794)       Labels:* None
   Part No SW: 3G5 035 842     HW: 3G5 035 842
   Component: MU-O-NS-US    H56 0786
   Serial number: WG8LGM060820000
   Coding: 24830000000020000000000000000000000000000000000000
   ASAM Dataset: EV_MUOIMQB 001002
   ROD: EV_MUOIMQB_VW48.rod
   VCID: 659CDBF1F5E1F053E04-8030

I do have a fuzzy recollection that some 5F modules need to have a manual "reset" via the buttons/controls in order for changes to take?

-Uwe-
 
   #3  

jphughan

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That is indeed strange:

I do have a fuzzy recollection that some 5F modules need to have a manual "reset" via the buttons/controls in order for changes to take?

-Uwe-

Thanks Uwe, I'll ask him to try that. But since I'm not a seasoned VCDS user, out of curiosity what part of the auto-scan segment you quoted is strange? Just the missing workshop code or something else?
 
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Uwe

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