ZF 4HP20 self-adaptation reset

[nielsek]

Hi.

From version 3.2 automatic transmission ZF 4HP20 is supported. The connection worked great on my 166 2004 with adapter cable A1 and KKL. With ELM/A1 bluetooth I couldn't make it work.
I have a question about self-adaptation reset with this gearbox. Is there any special proceedure for this adjustment?

thanks,

[yani]

Hi,

I think that there are no specific conditions required for this procedure. Simply execute it.

Yani

[portello]

When I hit the execute button for the self adaption reset I got an error message and the execute halts. All other communications with the gearbox works ok... Anyone got this reset to work?

[kazinkas]

the same problem for me... all parameters are read fine, except self-adaptaion reset, and solenoids activation - both failures. Does anybody who experiencing "self-adaptation failure" have the same issue with solenoids activation??
Has anyboby found method to drop off adaptations for this gear box?

[jeremyg]

Hi, has anyone been able to successfully reset the adaptive learning on their 4HP20 gearbox? I can connect to the gearbox and select the "Self adaptation reset" from the Adjustments menu - but the operation fails to execute.

If you made it work, please let me know how you did it!

thanks,