Test requirements: Notes

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2003 Audi S8, 2003 Audi A8, 2002 Audi S8, 2002 Audi A8, and 2001 Audi A8. However, it is still accessible from the selected car via links, so may be relevant.

Fuses for engine electronics OK
Fuel Pump (FP) relay OK

Connect VAS5051 tester or VAG1551 scan tool and select control module for engine electronics using "address word" 01. Ignition must remain switched ON for this.
Indicated on display:

Fig 1: VAG1551 Scan Tool Display - Output Diagnostic Test Mode: Engine Code AYS (1 Of 2)
Courtesy of AUDI OF AMERICA, INC.
Press buttons -0- and -3- to select "Output Diagnostic Test Mode (DTM)" function 03.
Indicated on display:

Fig 2: VAG1551 Scan Tool Display - Output Diagnostic Test Mode: Engine Code AYS (2 Of 2)
Courtesy of AUDI OF AMERICA, INC.
Press -Q- button to confirm input.