A4 Quattro Sedan L4-1.8L Turbo (AWM) (2001)
Electronic Throttle Control Module: Testing and Inspection
Throttle Valve Control Module -J338- Checking
The following components are located in the housing for the throttle valve control module:
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Throttle drive (power accelerator actuation) - G186-. (This is an electric motor that is activated by the ECM. This electric motor opens the throttle
valve against spring pressure.)
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Angle sensor -1- for throttle drive (power accelerator actuation) -G187-
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Angle sensor -2- for throttle drive (power accelerator actuation) -G188-
NOTE:
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The housing for the throttle valve control module must not be opened.
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The angle sensors are designed as potentiometers (variable resistances). They communicate the position of the throttle valve to the Engine Control
Module (ECM) fully independent of each other.
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The potentiometers cannot be mechanically adjusted. Adjustments are performed in diagnostic function "04 - basic setting" using VAS5051 tester.