Subaru 2009 IMPREZA, Service Manual

Page: 861 / 3619

GD(H4SO)-137
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
• Abnormality Judgement
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
The diagnosis counter does not count up when the following conditions are completed within 12288 ms.
Time Needed for Diagnosis: 12288 ms × 4 time(s)
Malfunction Indicator Light Illumination: Illuminates when malfunction occurs in 2 continuous driving cy-
cles.
• Normality Judgement
Judge as OK and clear the NG if the continuous time while the following conditions are established is more
than the predetermined time.
Time Needed for Diagnosis: 12288 ms
Judgement Value
Malfunction Criteria Threshold Value
Integrated times of the condition reaching
follows,
t
4 time(s)
DELFLMAX
t
Value from Map
or
SUMFL
t
25.92 V
At this time,
DELFLMAX: Maximum difference of sen-
sor output for 12288 ms
SUMFL: Integrated value of the sensor
output deviation for12288 ms
Map
Fuel level ( 2 , US gal, Imp gal) 0, 0, 0
10, 2.64,
2.2
20, 5.28,
4.4
30, 7.93,
6.6
40, 10.57,
8.8
50, 13.21,
11
60, 15.85,
13.2
Measured voltage (V) 0.27 0.27 0.426 0.582 0.738 0.894 0.894
Maximum value – Minimum value of
change of tank pressure during 12288 ms
t
0 kPa (0.375 mmHg,
0 inHg)
Maximum value – Minimum value of bat-
tery voltage during 12288 ms
t
1.09 V
Judgement Value
Malfunction Criteria Threshold Value
DELFLMAX < Value from Map
SUMFL < 25.92 V
At this time,
DELFLMAX: Maximum difference of sen-
sor output for 12288 ms
SUMFL: Integrated value of the sensor
output deviation for12288 ms