Subaru 2009 IMPREZA Service Manual page 820

Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
• Abnormality Judgement
Judge as NG when the following conditions are established.
Judgement Value
Malfunction Criteria
PMON – (PMOF1 + PMOF2)/2 < 2.5 kPa (18.63 mmHg, 0.7 inHg)
Time Needed for Diagnosis: 1 time
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.
Deceleration fuel cut
Diagnosis enable condition
EGR target step
EGR actual step
Intake manifold pressure
(During normal condition)
DIagnostic mode timer
(A) 3000 ms
(B) 1000 ms
• Normality Judgement
Judge as OK and clear the NG if the following conditions are established.
Judgement Value
Malfunction Criteria
PMON – (PMOF1 + PMOF2)/2
Time Needed for Diagnosis: 1 time
Threshold Value
ON
OFF
(Open)
(Close)
(Open)
(Close)
(C) 1000 ms
Threshold Value
2.5 kPa (18.63 mmHg, 0.7 inHg)
GD(H4SO)-96
Start dignosis
(A) (B)
(D)
PMOF1
(C)
PMON
PMOF2
(D) 45 step(s)
EN-05568