Connect GDS to Data Link Connector (DLC).
Warm engine up to normal operating temperature.
Turn "OFF" electrical devices and A/C.
Monitor "BOOST PRESSURE SENSOR" parameter on the GDS.
Specification : 1000hpa ± 100hpa at idle
Fig.1) Monitor "BOOST PRESSURE SENSOR" parameter on the GDS at idle after warming engine up.
1000hpa ± 100hpa(approx. 1 atm) is correct value.