Subaru Legacy IV (2008 year). Manual - part 409
GD(H4DOTC)-86
Diagnostic Trouble Code (DTC) Detecting Criteria
GENERAL DESCRIPTION
AW:DTC P0327 KNOCK SENSOR 1 CIRCUIT LOW (BANK 1 OR SINGLE SENSOR)
1. OUTLINE OF DIAGNOSIS
Detect the open or short circuit of knock sensor.
Judge as NG if out of specification.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITION
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
• Abnormality Judgement
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Time Needed for Diagnosis: 1000 ms
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
• 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: Less than 1 second
(A)
To knock sensor harness
(1)
Case
(3)
Piezoelectric element
(5)
Resistance
(2)
Weight
(4)
Nut
Secondary Parameters
Enable Conditions
None
Judgement Value
Malfunction Criteria
Threshold Value
Output voltage
< 0.238 V
Judgement Value
Malfunction Criteria
Threshold Value
Output voltage
t 0.238 V
EN-01707
(1)
(2)
(3)
(4)
(5)
(A)