P0011

DTC P0011 INTAKE CAMSHAFT POSITION TIMING - OVER-ADVANCED (BANK 1)

1. OUTLINE OF DIAGNOSIS
Detect the AVCS system malfunction.
There are two types of diagnosis: Crankshaft cam timing diagnosis; and slow response diagnosis. Either of these is performed according to the status of the engine while running.




2. COMPONENT DESCRIPTION

3. ENABLE CONDITIONS




1. Crankshaft Timing Diagnosis




2. Slow Response Diagnosis

4. GENERAL DRIVING CYCLE
1. Crankshaft Timing Diagnosis
Perform the diagnosis continuously after starting engine and while AVCS is not operating.
2. Slow Response Diagnosis
Perform the diagnosis continuously after warm-up, while AVCS is operating and the target timing advance is small.

5. DIAGNOSTIC METHOD




1. Crankshaft Timing Diagnosis
Judge as NG when the timing advance is large. Judge as OK when it is small.
Judge as NG when all the following conditions are established and the continuous time is more than 20 seconds. Judge as OK and clear the NG when the following conditions are not established and the continuous time is more than one second.




2. Slow Response Diagnosis
Calculates (integrate by positive and negative separately) the AVCS deviation amount when the timing advance is large. Judges NG if the integrated value is large after 30 seconds has passed, and judges OK if it is small.

Abnormality Judgment
When all of the following conditions are established, judged as OK.




Normality Judgment
Judges OK when all of the following conditions are established, and clears the NG.

6. DTC CLEAR CONDITION
- When the OK idling cycle is completed 40 times in a row
- When "Clear Memory" is performed

7. MALFUNCTION INDICATOR LIGHT CLEAR CONDITIONS
- When the OK driving cycle is completed 3 times in a row
- When "Clear Memory" is performed

8. FAIL SAFE
Make the oil flow control solenoid valve driving duty a predetermined value (9.36%).

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