A4 Quattro Wagon V6-2.8L (AHA) (1998)
Electronic Throttle Actuator Position Sensor: Testing and Inspection
Throttle Drive And Angle Sensor For Throttle Drive, Checking
NOTE: Throttle drive -G186- and angle sensor -1- for throttle drive -G187- are located in the throttle valve control module -J338-.
Test conditions
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Throttle valve in closed throttle position; if necessary adjust accelerator pedal cable
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Cruise control adjustment OK
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Power supply for throttle valve control module OK; Refer to "Throttle Valve Control Module Power Supply, Checking" See: Powertrain
Management/Computers and Control Systems/Electronic Throttle Control Module/Testing and Inspection
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Engine coolant temperature at least 80 °C (176 °F)
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Automatic transmission selector lever in "P" or "N"
Checking
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Connect VAG1551 or VAG1552 scan tool and press buttons -0- and -1- to insert "Engine Electronics" address word 01 (with engine running at
idle). Refer to "Scan Tool Testing/Scan Tool Connecting and Initial Checks/Connecting VAG 1551/1552 Scan Tool" See: Powertrain
Management/Computers and Control Systems/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
HELP
Input display group number XXX
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Press buttons -0-, -5- and -5- to input display group number 55 (055), and press -Q- button to confirm input.
Indicated on display (1-4 = display fields)
Read Measuring Value Block 55
->
1 2 3 4
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Compare display with specified values for idle air control (display fields 1-4):
Display Group 55
If displayed values are OK:
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Press -> button.
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Press buttons -0- and -6- to select "End Output" function 06, and press -Q- button to confirm input.