Scan Tester Procedure

Access scan tester service data item No. 25. With ignition on, scan tester should display 760 mm Hg at sea level. Other test specification readings are; 710 mm Hg at 1969 ft. (600 m), 660 mm Hg at 3937 ft. (1200 m) and 610 mm Hg at 5906 ft. (1800 m).