P2444

DTC P2444 SECONDARY AIR INJECTION SYSTEM PUMP STUCK ON

1. OUTLINE OF DIAGNOSIS
Detect the malfunction (always ON) of secondary air pump.
Judge NG when the secondary air supply pipe pressure is higher than atmospheric pressure.




2. ENABLE CONDITION

3. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.

4. DIAGNOSTIC METHOD
Judge NG when the secondary air supply pipe pressure is higher than atmospheric pressure though it should become atmospheric pressure with the secondary air pump OFF.







^ Abnormality Judgment
Judge NG when the continuous time of completing the malfunction criteria below becomes more than 5 seconds.




Normality Judgment
Judge OK and clear the NG when the continuous time of completing the malfunction criteria below becomes more than 5 seconds.

5. DTC CLEAR CONDITION
^ When the OK idling cycle was completed 40 times in a row
^ When "Clear Memory" was performed

6. MALFUNCTION INDICATOR LIGHT CLEAR CONDITION
^ When the OK driving cycle was completed 3 times in a row
^ When "Clear Memory" was performed

7. FAIL SAFE
None

8. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)