A6 Quattro Sedan V6-2.7L Turbo (APB) (2000)
Electronic Throttle Actuator Position Sensor: Testing and Inspection
Angle Sensor -1- For Throttle Drive (Power Accelerator Actuation) -G187 And Angle Sensor -2- For Throttle Drive (Power Accelerator
Actuation) - G188, Checking
The angle sensor -1- for throttle drive (power accelerator actuation) -G187 and angle sensor -2- for throttle drive (power accelerator actuation) - G188
inform the engine control module of the position of the throttle valve. Both angle sensors are located in the throttle valve control module.
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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: 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
Q
Input display group number XXX
-
Press buttons -0-, -6- and -2- to select "display group number 062" and confirm entry with -Q- button.
Indicated on display
Read Measuring Value Block 62
->
1
2
3
4
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Check specified display values for electronic throttle potentiometer voltages.
Display Group 062
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Observe display fields 1 and 2.
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Slowly depress accelerator pedal to full throttle position.
The percentage value in display field 1 should rise steadily, but without covering the full tolerance range between 3 - 93 %.