Audi Workshop Service and Repair Manuals

Functional description

Production diagnosis is a special mode for checking the wiring and function capability of the navigation system. An automated check of the individual fault locations is carried out and the result permanently stored in the so-called function status register (measured value block 007).

Production diagnosis can be disabled/enabled by way of the "Adaption" function (channel number 03) .

Production diagnosis is also disabled when a navigation CD is inserted.

The "Erase fault memory" function also resets the function status register.

Test requirements:

• ◆ No navigation CD inserted
• ◆ Navigation switched on
• ◆ Tyre circumference adaption performed
• ◆ Number of pulses from ABS wheel sensors adapted => Page 01-77
• ◆ Erase fault memory => Page 01-100
• ◆ Move vehicle at min. 10 km/h
• ◆ When vehicle stops engage reverse gear for min. 2 seconds

If production diagnosis has been performed correctly (all test requirements met) and if the navigation system is in good working order, measured value block 007 (function status register) displays the value 255.