100CS Quattro Wagon V6-2.8L (AAH) (1992)
When performing the display check for the Autocheck system, yellow and red displays should illuminate. If not, check relevant bulbs.
AUTO-CHECK CODE, CHECKING
Note
The Auto-check display check button is incorporated into the instrument panel dimmer switch.
^
switch ignition OFF
^
press and hold Auto-check display check button on instrument cluster
^
switch ignition ON
^
two-digit code appears in Auto-check display
first digit: number of cylinders