Haldex pump relearn

Chris: Ain't nothing magic about non OBD11 diagnostic devices (like VCDS)!!! With very few exceptions (maybe none), if a procedure can be done with VCDS, it can also be done with OBD11 - because these procedures are largely undertaken by the module itself!!

dan: Hi.

The cars on this part of the forum are built on a MQB platform (5Q0/3Q0 chassis)- however, a Cupra Formentor VZ has a MQB-evo platform and it has a 5WA chassis. There are similarities between the two set-ups - but the CAN bus arrangement is very different!

I've never tried the procedure above on a MQB-evo vehicle - I suspect that it might be problematic!!

Don

Hello
This thread seems closest to my question. Do you know if obdeleven supports the pre-UDS controller basic settings to clear adaptation values and run the pump calibration? 
Specifically I want to do the relearn on a gen4 haldex on a 2013 Passat TDI.

I have established that the controller is pre-UDS, and will buy obdeleven if it can do these basic settings.

Thanks for your response.

I think my car has a mix of protocols - it was a time when controllers were transitioning to UDS. They all use CAN bus as a base.


My current scan tool (an Ancel VD700, which has been surprisingly useful) reports the controller protocol as simply 'CAN20'.
The VD700 can even 'see' active channels under basic settings - reporting channels at 20, 40, 41, 50, 51 and 97. So if I knew which channel number corresponded to which basic setting, I would try it out. But going in blind, I really dont want to risk it. Ive spend ages on google looking for this and only found one - apparently 51 is 'Adjustment value controlling the opening degree of the clutch'.

I have some confidence that in VCDS, there would be a corresponding label file (their terminology) which gives a description of a selected channel.
Similarly, I feel pretty confident that obdeleven will be able to see the channels, its whether they have implemented a description for each one.

I did chat to help, and they would not talk specifically to my question, nor escalate my question to the technical team, just assured me that I 'should' be able to do with obdeleven what I could do with VCDS.

Thanks. I think you've pushed me over the line to just order obdeleven and have done with it. I would say it does have some distinct advantages that set it apart, like the ability to launch tests from outside (or under!) the vehicle. VCDS seems to be better for serious diagnosis with eg graphing.

I don't have any mystical views about the power of VCDS - it's just data, after all. But it has been around for an awfully long time, and as I understand, its many users have contributed to the knowledge base (label files for different controllers etc). So it stands to reason that its data would be more complete, particularly for older models. I'm surprised there has not been an open-source tool with the same capabilities. The sticking point is of course all of the secret/proprietary data locked up in the tool, and people seem to think that it's now the intellectual property of Ross-tech. I dont know the legalities, but it was pretty clearly all ultimately obtained from VAG group manuals, by reverse engineering ODIS, or by 'crowd-sourcing' as mentioned.

I'm Australian too, so you dont need to convince me about the advantages of gun control. Leaving aside the mass shootings, the sheer availability of guns means that suicide, accident, and 'crimes of passion' are greatly facilitated in the US. And politics? There is no middle ground any more it seems.

Thanks again,
Paul.

Hmm. So I recieved the obdeleven and I'm not much more advanced. Protocol confirmed as KWP (in fact after looking at a few controllers, only the engine module seems to be UDS - I expected to see more for a 2013 model. I would not be surprised if VW used up (ie dumped) their old stock of KWP controllers on the Australian market during the transition.

There are no output tests exposed at all - same as my Ancel VD700. There is only one basic setting exposed at channel 51 - adjustment value for angle of valve (or words to that effect). I actually found this one online in an old document, but dont know if it will do the relearn function or not.

I read somewhere that adaptations channel zero will clear all adaptation values, and I wonder if this will have the same effect as the clear pump adaptation values basic setting for the UDS controller. Again, there are more basic settings channels that exist - 20, 40, 41, 50, 51 and 97. But not documented.

This is what I had feared, and the difference from VCDS - a lot more user input for a lot more cars. Obdeleven also relies on user-generated labels, and a warning about the reliability of the labels comes up before it loads the labels. I had not known about this, and hoped after our last exchange that their 'relationship' with VW would mean they had inside knowledge.

No direct way to prime the pump, so I guess I will just run the car after first fill for a while and check that the pump runs, then top up.

I really dont want to spend yet another $AU400+ on VCDS for this one job. I doubt a dealer will help - they would probably charge the full amount of the service just for configuring the pump, if I know Australian VW dealerships, or just tell me to go to hell. I might try a chinese knock-off fo this one job, since my Ancel works for all other common service items.