disable dtc error

[pawliukazz]

Here is what I mean.

(16874)....P0490...EGR Control Circuit High.

VW call this: CARB spezifischer Fehlercode fuer Fehlerpfad Dfp_EGRCD_Max

Which I think means: CARB specific error code for Error Path Dfp_EGRCD_Max

They also have this:

17810...(P1402)...EGR Valve (N18), Circuit Short to B+

This is called: Kundenspezifischer Fehlercode fuer Fehlerpfad Dfp_EGRCD_Max

Which I think means: Customer specific error code for Error Path Dfp_EGRCD_Max


So that is two P-codes (CARB) and 2 Customer (VW) codes all for Error Path Dfp_EGRCD_Max.

So If I find Error Path Dfp_EGRCD_Max and set it to 000, it will be off but 2 CARB and 2 customer codes will be disabled.

I have no idea if this is correct. All I know is that using this method has produced some strange results. That's why I wondered if you used the same method.
The path (switch) always has a number like 001, 002 etc up to roughly 020. These are the bits I set to 000 to disable the path.

I think i understand what you wanted to say, however:

if the ecu has 320 dtcs, then it will have 320 switches or paths as you say. Knowing that vag has bocks of 4x1 instead of one dtc it will mean that:
(16874)....P0490...EGR Control Circuit High. - these two will probably be in one block (refers to the same dtc) it may have either two empty slots or simmilar dtcs like for example "EGR Control Circuit Low" And it does not mater if we disable both all of them because they all refer to the same dtc, but different status, meaning the same control circuit problem, however one is too high, other is too low. All of these dtcs "live in the same house" and are responsible for the same thing.
These dtc may also be in different blocks, but other slots will probably be empty.

Also i wouldnt trust damos naming for paths. Only the manufacturers can understand what they are naming...

conclusion - (Only from my own experience) you must be doing something wrong if you are getting strange results, i don't know your solution to finding paths, but...

Again i will repeat myself - i've never had problems with disabling dtcs whatsoever.

Best regards,
pawliukazz