Throttle Valve Control Module - GX3-, Checking: General Description

Throttle valve operation occurs by an electric motor identified as EPC Throttle Drive -G186- located within the Throttle Valve Control Module - GX3-. It is controlled by the Engine Control Module - J623- with primary inputs from the Accelerator Pedal Position Sensor -G79- / Accelerator Pedal Position Sensor 2 -G185- as well as other peripheral inputs from EPC Throttle Drive Angle Sensor 1 -G187- and EPC Throttle Drive Angle Sensor 2 -G188-.

The Throttle Valve Control Module - GX3- contains the following components:

• Throttle Valve Control Module -J338-
• EPC Throttle Drive -G186-
• EPC Throttle Drive Angle Sensor 1 -G187-
• EPC Throttle Drive Angle Sensor 2 -G188-

The Throttle Valve Control Module - GX3- components cannot be serviced separately, it must be serviced as a unit.

Special Tools And Workshop Equipment Required 

• Multimeter.
• Wiring Diagram.
• Scan Tool.