Connect Scantool to Data Link Connector (DLC).
Warm engine up to normal operating temperature.
Turn "OFF" electrical devices and A/C.
Monitor "INLET THROTTLE ACTU." parameter on the Scantool.
Specification : 4.7% duty outputted except the operation of throttle flap
95% duty outputted at the operation of throttle flap
Monitoring if the state of throttle control actuator changes at turning engine OFF because the communication through Scantool is comleted 3 sec. after turning engine ON. It is the easiest way to check if throttle control actuator is closed for about 1 sec. and opened again with eyes(visually) or ears(sound) in order to inspect component operation.