A8 Quattro Sedan V8-4.2L (AUX) (2001)
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Connect VAS5051 with diagnostic cable VAS5051 or VAG1551 scan tool with diagnostic cable VAG1551/3A.
NOTE: The following description only explains implementation of On Board Diagnostic (OBD) using VAG1551 scan tool. When using VAS5051,
observe the tester's instructions for use.
Indicated on display
VAG-ON BOARD DIAGNOSTIC
HELP
1 - Rapid data transfer 1)
2 - Blink code output 1)
1) Operating modes 1 and 2 are displayed alternately
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Switch ignition on.
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Press button 1 to select "Rapid data transfer" operating mode 1.
Indicated on display
Rapid data transfer
HELP
Insert address word XX
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Press buttons -0- and -1- to select "Engine electronics" and press -Q- button to confirm input.
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Press button.
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press button -0- and -3- to select function "Output Diagnostic Test Mode".
Indicated on display
Rapid data transfer
Q
03-Output Diagnostic Test Mode
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Confirm input with -Q- button.
Indicated on display (EVAP canister purge regulator valve -N80)