Allroad Quattro V6-2.7L Turbo (APB) (2002)
Intake Air Temperature Sensor: Testing and Inspection
Intake Air Temperature (IAT) Sensor -G42, Checking
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Connect vehicle diagnostic, testing and information system VAS5051 or VAG1551 scan tool and select engine electronics control module by
entering address word "01". When doing this the ignition must be switched on. Refer to "Scan Tool Testing/Scan Tool Connecting and Initial
Checks/Connecting VAS 5051/ VAG 1551 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 function "Read Measuring Value Block" and confirm entry with -Q- button.
Indicated on display
Read Measuring Value Block
HELP
Input Display Group Number XXX
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Press buttons -0-, -0- and -4- to select "display group number 004" and confirm entry with -Q- button.
Indicated on display: (1...4 = display fields)
Read Measuring Value Block 4
->
1
2
3
4
-
Check display value for intake air temperature sensor (display field4):
Display Group 004
Checking wiring:
-
Switch ignition off.
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Connect test box VAG1598/31 to wiring harness for engine control module. Do not connect to the engine control module itself. Refer to "Scan
Tool Testing/Scan Tool Connecting and Initial Checks/Connecting VAG1598/31 Test Box" See: Testing and Inspection