A8 Sedan V8-3.7L (AEW) (1997)
Idle Air Control Valve: Testing and Inspection
Idle Air Control (IAC), Checking
Idle Air Control (IAC), Checking
IAC function, checking
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Connect VAG1551 or VAG1552 Scan Tool (ST), and press buttons -0- and -1- to insert "Engine Electronics" address word 01 (engine running at
idle). Refer "Scan Tool Testing/Scan Tool Connecting and Initial Checks/Connecting VAG1551 or VAG1551 Scan Tool" See: Testing and
Inspection
Indicated on display
Rapid data transfer
HELP
Select function XX
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Press buttons -0- and -8- to select "Read Measuring Value Block" function 08, and press -Q- button to confirm input.
Indicated on display
Read Measuring Value Block
Input display group number XXX
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Press buttons -0-, -0- and -4- to input display group number 4 (004), and press -Q- button to confirm input.
Indicated on display
Read Measuring Value Block
->
1
2
3
4
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Check specified values for basic functions at engine idle speed (display field 4):
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Press -C- button.
Indicated on display
Read Measuring Value Block
Input display group number XXX
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Press buttons -0-, -0- and -6- to input display group number 6 (006), and press -Q- button to confirm input.
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Press button -3- to advance to display group 7.
Indicated on display