Connect scan tool with 'DATA LINK CONNECTOR'(DLC).
Warm engine up to normal operating temperature.
Turn all the electrical devices including air conditioner OFF.
Monitor "BOOST PRESSURE SENSOR" parameter on the scan tool.
Reference value : 1013hpa ± 100hpa ( when VGT actuator duty is 92%)
Fig.1) BPS signal waveform at idle, engine wormed up.
Fig.2) BPS signal waveform at acceleration