[spooky75]

Well revert back to original software didn't help.
Maybe configuration is somehow compromised with upgrade and then after downgrade to original sw still persist.
Is there any type of "basic settings" for BCM module in offline mode ?
Or online restore to specific car is only way to "reset" configuration?

[david99]

Well revert back to original software didn't help.
Maybe configuration is somehow compromised with upgrade and then after downgrade to original sw still persist.
Is there any type of "basic settings" for BCM module in offline mode  ?
Or online restore to specific car is only way to "reset" configuration?

in offline there is possible to load dataset but you need to get it firstly from somewhere if you would like to have the original one there. Coding and adaptations could be loaded in case you have them saved. Maybe someone more knowledgeable will know if there is possible to do SVM somehow offline but I doubt it.

I think wrong dataset could cause issues.

[spooky75]

There is same dataset (V03935260WR) on mibsolution which I already have in my car.

There is no special coding for our BCM (it's zeroed) everything is managed via adaptations and they was unchanged after downgrade to original SW (minus extra adaptions which comes with newer sw).

Interesting is at all "heaters" (front and rear seats, aux. heater, steering wheel heater and mirror heaters) in car working as should despite the message even if they are all enabled in the same time.
I will check all connections as Pupu144 had suggest, just need to find time.

[gyozo75]

Hello,


I have old "issue" with HVAC unit on Tiguan 2018, any time when I enable front and rear seat heaters together I get this error message:

5NB907044J SW:4501
A010C B10CD00 Function limitation due to energy management (HeckBT - Sitzheizung - Komforteinschränkung wegen Eingriff Energiemanagement)

Seat heating working on all four places despite this error, but error itself driving me nuts.
I have tested and change battery with new one, upgrade GW and HVAC modules, but still have same issue.

Can this be related to some setting in gateway somehow ?

Hello.
I have this issue last year with my friends Passat B8.
I tried everything nothing helped,the last chance was to change rear seat heating pad and error has gone!

----------------------------------------------------------------------------------------------
Good luck!

[spooky75]

Hello.
I have this issue last year with my friends Passat B8.
I tried everything nothing helped, the last chance was to change rear seat heating pad and error has gone!

----------------------------------------------------------------------------------------------
Good luck!

Thank you.
This resolution is in line with Pupu144 suggestion.
I will definitely check rear seats and see is there any deviations

Do you maybe know what is resistance for working heater pads ?

[david99]

Hello.
I have this issue last year with my friends Passat B8.
I tried everything nothing helped, the last chance was to change rear seat heating pad and error has gone!

----------------------------------------------------------------------------------------------
Good luck!

Thank you.
This resolution is in line with Pupu144 suggestion.
I will definitely check rear seats and see is there any deviations

Do you maybe know what is resistance for working heater pads ?

Yes exactly I would be also interested in resistance difference between new and old heating pads.

[gyozo75]

Hello.
I have this issue last year with my friends Passat B8.
I tried everything nothing helped, the last chance was to change rear seat heating pad and error has gone!

----------------------------------------------------------------------------------------------
Good luck!

Thank you.
This resolution is in line with Pupu144 suggestion.
I will definitely check rear seats and see is there any deviations

Do you maybe know what is resistance for working heater pads ?

Sorry,i don't remember the resistance value.I know only that the pad resistance for the old was lower than the new pad.