TT L4-1.8L Turbo (BEA) (2004)
Electronic Throttle Control Module: Component Tests and General Diagnostics
With Manufacturer's Scan Tool
Throttle Valve Control Module -J338-, Checking
The following components are located in housing for throttle valve control module:
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Throttle drive (power accelerator actuation) - G186-. (This is an electric motor that is activated by ECM. This electric motor opens 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 throttle valve control module must not be opened.
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The angle sensors are designed as potentiometers (variable resistances). They communicate position of throttle valve to Engine Control Module
(ECM) fully independent of each other.
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The potentiometers cannot be mechanically adjusted. Adjustment is performed in Basic Setting (function 04) using the VAS5051 tester Scan Tool.