Throttle Valve Control Module, Checking: Function

Throttle valve operation occurs by an electric motor Throttle Drive for Electronic Power Control (EPC) -G186- in the Throttle Valve Control Module - J338-. It is operated by the Engine Control Module (ECM) -J623- and the Accelerator Pedal Position Sensor 1 -G79- /Accelerator Pedal Position Sensor 2 -G185-.

The Throttle Valve Control Module -J338- is made up of the following components:

• Throttle Drive for Electronic Power Control (EPC) -G186-
• Throttle Position Sensor -G69-
• Throttle Drive Angle Sensor 2 for Electronic Power Control (EPC) -G188-

The Throttle Valve Control Module -J338- cannot be serviced separately and must be serviced as a unit.