Audi Workshop Service and Repair Manuals

Adaption procedure –  Interrogate fault memory of operating and display unit, Climatronic control unit -J255- → Chapter and rectify any other faults displayed (fault “Control unit incorrect chassis number” cannot be erased at this stage). –  Check encoding of operating and display unit, Climatronic control unit -J255- for vehicle-specific optional extras and correct if necessary → Chapter.

Indicated on display of vehicle diagnostic, testing and information system -VAS 5051A-: –  Select function “10 - Adaption”.

Indicated on display of vehicle diagnostic, testing and information system -VAS 5051A-: t  Prompt for entering channel number appears in display zone -1-. t  Input keypad appears in display zone -2-. –  Use input keypad in display zone -2- to enter “81” for channel “81” and confirm by touching Q key.   Note t  Possible causes if display zone -1- indicates “Function unknown or cannot be implemented at present”: t  - Control unit adaption not performed as specified and in full t  - Fault on convenience data bus system t  If display zone -1- indicates “Disabled” and disable time (e.g. “10” for 10 minutes), the adaption function is currently not available due to having been incorrectly implemented several times. t  Wait for completion of disable time.

Indicated on display of vehicle diagnostic, testing and information system -VAS 5051A-: t  Display zone -1- indicates “Channel 81 reading and testing”. t  Display in area -2- is “PIN ?”. t  A bar appears in area -3- (not to be used for this application). –  Touch key -4- (for entry via keypad).

Indicated on display of vehicle diagnostic, testing and information system -VAS 5051A-: t  Display zone -1- indicates “Enter adaption value: 0....XXXXX”. t  Input keypad appears in display zone -2-. –  Use input keypad in display zone -2- to enter PIN for re-adaption of operating and display unit, Climatronic control unit -J255-. PIN: “26467” t  PIN entered appears in area -2-. –  Confirm entry by touching Q key.

Indicated on display of vehicle diagnostic, testing and information system -VAS 5051A-: t  The PIN entered appears above the bar in area -3-. –  Store entry by touching key -5-.

Indicated on display of vehicle diagnostic, testing and information system -VAS 5051A-: t  Display zone -1- indicates “Store channel 81”. t  Area -3- displays the original PIN or “0” and the new PIN. –  Adopt and store entry by touching key -4-. t  Display zone -1- indicates “Store channel 1, value 1 stored”.   Note t  Touch ← key to return to selection program. t  Entering the PIN erases the chassis number stored in the operating and display unit, Climatronic control unit -J255-. The operating and display unit, Climatronic control unit -J255- is then ready to adopt the chassis number transmitted by the control unit in dash panel insert -J285- via the convenience data bus system. –  Terminate self-diagnosis → Chapter and switch off ignition. –  Start engine. –  Interrogate fault memory of operating and display unit, Climatronic control unit -J255- → Chapter and erase faults displayed → Chapter. The fault “Control unit incorrect chassis number” is no longer displayed or can now be erased (if adaption has been performed correctly). –  Check the chassis number now stored in the operating and display unit, Climatronic control unit -J255- → Chapter (Reading measured value block, display group “081”).