Subaru 2009 IMPREZA Service Manual page 1815

Diagnostic Trouble Code (DTC) Detecting Criteria
EK:DTC P2433 SECONDARY AIR INJECTION SYSTEM AIR FLOW /PRESSURE
SENSOR CIRCUIT HIGH
1. OUTLINE OF DIAGNOSIS
Judge as NG if out of specification.
2. ENABLE CONDITIONS
Secondary Parameters
None
3. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
4. DIAGNOSTIC METHOD
• Abnormality Judgement
If the duration of time while the following conditions are met is longer than the time indicated, judge as NG.
Judgement Value
Malfunction Criteria
Ignition switch
Output voltage
Time Needed for Diagnosis: 500 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.
Judgement Value
Malfunction Criteria
Ignition switch
Output voltage
Time Needed for Diagnosis: Less than 1 second
Enable Condition
Threshold Value
ON
> 4.916 V
Threshold Value
ON
4.916 V
GD(H4DOTC)-227
GENERAL DESCRIPTION