Audi Workshop Service and Repair Manuals

Starting immobilizer self-diagnosis

Sequence of operations l  Vehicle diagnostic, testing and information system -VAS 5051B- connected and vehicle self-diagnosis selected → Chapter l  Ignition on Display on -VAS 5051B-: –  From list -1- select vehicle system “17 - Dash panel insert”.   Note As the immobilizer is integrated into the dash panel insert, vehicle system “17 - Dash panel insert” must be used. –  Wait until next display appears.

Display on -VAS 5051B-: 1 -  Control unit identification of dash panel insert → Anchor (up to Model Year 1999) or → Anchor (as of Model Year 2000) 2 -  Control unit identification of immobilizer

Immobilizer control unit identification (example)
Immobilizer ident. no.	14-position immobilizer identification number
AUZ5Z0X1162041

–  Touch → key.

Display on -VAS 5051B-: 1 -  Selection of functions:

Functions		Page
02	Interrogating fault memory	→ Chapter
05	Erasing fault memory	→ Chapter
06	End of output	→ Chapter
08	Reading measured value block	→ Chapter
10	Adaption	→ Chapter
	Release (PIN)	→ Chapter, → Chapter

All other functions displayed cannot be selected or can be ignored in this case. Fault messages on -VAS 5051B- If a fault message appears on the display, refer to → Operating instructions of vehicle diagnostic, testing and information systemVAS 5051B.

If display zone -1- shows the fault message “Vehicle system not available”: –  Check: t  Power supply to diagnostic connection → Current flow diagrams, Electrical fault finding and Fitting locations t  Wiring between diagnostic connection and dash panel insert → Current flow diagrams, Electrical fault finding and Fitting locations