Throttle Valve Control Module - GX3-, Checking: Notes

General Description 

Throttle valve operation occurs by an electric motor identified as the 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 Module -GX2- as well as other peripheral inputs from the EPC Throttle Drive Angle Sensor 1 -G187- and the EPC Throttle Drive Angle Sensor 2 -G188-.

The Throttle Valve Control Module -GX3 / J338- contains the following components:

• EPC Throttle Drive -G186-
• EPC Throttle Drive Angle Sensor 1 -G187-
• EPC Throttle Drive Angle Sensor 2 -G188-

The Throttle Valve Control Module -GX3 / J338- components cannot be serviced separately, and they must be serviced as a unit.

Special Tools And Workshop Equipment Required 

• Multimeter.
• Wiring Diagram.
• Scan Tool.

Test requirements 

• Fuses OK.
• Battery voltage OK.
• Switch OFF all electrical and electronic accessories.
• Vehicles with automatic transmission, ensure the selector lever position is in "P".
• Vehicles with manual transmission, ensure the shifter lever position is in "N" with the parking brake applied.
• Observe all safety precautions: SAFETY PRECAUTIONS .
• View clean working conditions: CLEAN WORKING CONDITIONS .