Diagnostic Method: Notes

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Fig 1: General Driving Cycle

Courtesy of SUBARU OF AMERICA, INC.

Mode	Explanation of Mode	Diagnosis Period
A	Vacuum pump operation confirmation and characteristics stability	7 s or less & 300 s
B	Measurement of reference pressure for setting the target negative pressure	40 s or less
C	Switching valve operation confirmation	12 s or less
D	Clogging of pipe diagnosis and leak pressure measurement	900 s or less
E	Reference pressure measurement for judgment	40 s or less

Fig 2: General Driving Cycle Flowchart (Satisfied And Not Satisfied)

Courtesy of SUBARU OF AMERICA, INC.