Manufacturer's Scan Tool

Throttle Valve Control Module, Checking

The following components are located in the housing of the Throttle Valve Control Module (J338).

• Throttle drive (power accelerator activation) (G186 ). (This is an electric motor which is activated by the Engine Control Module (ECM). This electric motor opens the throttle valve against the force of a spring).

• Angle sensor 1 for throttle drive (power accelerator activation) (G187)

• Angle sensor 2 for throttle drive (power accelerator activation) (G188)

• The housing of the Throttle Valve Control Module ( J338) must not be opened.

• The angle sensors are in the form of potentiometers (variable resistances). They provide the position of the throttle valve to the ECM completely independently of one another.

• The potentiometers cannot be adjusted mechanically. The settings are made as part of basic setting (function 04) using the vehicle diagnosis, testing and information system (VAS 5051).