S4 Quattro Sedan V6-2.7L Turbo (APB) (2000)
Intake Air Temperature Sensor: Testing and Inspection
Intake Air Temperature (IAT) Sensor -G42, Checking
-
Connect vehicle diagnostic, testing and information system VAS 5051 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", See: Powertrain Management/Computers and Control Systems/Testing and Inspection
Indicated on display
Rapid data transfer
HELP
Select Function XX
-
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
-
Press buttons -0-, -0- and -4- to select Display Group 4 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 field 4):
Display Group 004
Checking wiring:
-
Switch ignition off.
-
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/Wiring And Component Check With VAG1598/31 Test Box", See: Powertrain Management/Computers and Control
Systems/Testing and Inspection