Throttle Valve Control Module -J338-, Checking

Throttle Valve Control Module -J338, checking

The housing for the throttle valve control module contains the following components:


CAUTION!
The throttle valve control module housing should not be opened.


- Throttle drive -G186 (power accelerator actuation) (This is an electric motor activated by the engine control module. The motor opens the throttle valve by applying force to overcome the spring pressure.)
- Angle sensor -1- for throttle drive (power accelerator actuation) -G187
- Angle sensor -2- for throttle drive (power accelerator actuation) -G188

NOTE:
- The angle sensors are in the form of potentiometers (variable resistors). Each sends its own separate signal to inform the engine control module of the position of the throttle valve (i.e. one of the signals is redundant).
- The potentiometers cannot be adjusted mechanically Settings are made using the "Basic Setting" function (function 04) with Vehicle Diagnostic, Testing and Information System VAS 5051 or with VAG 1551 Scan Tool.