P2092

DTC P2092 OCV SOLENOID VALVE SIGNAL A CIRCUIT OPEN (BANK 2)

1. OUTLINE OF DIAGNOSIS
Detect open or short circuit of the oil flow control valve solenoid.
Judge open NG when the current flow is small whereas duty signal is large, and judge short NG when the current flow is large whereas duty signal is small.




2. ENABLE CONDITION

3. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.

4. DIAGNOSTIC METHOD




Abnormality Judgment
Judge as NG when the continuous time of completing the malfunction criteria given becomes 2 seconds or more.




Normality Judgment
Judge as OK and clear the NG when the continuous time of completing the malfunction criteria given becomes more than 2 seconds.

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

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

7. FAIL SAFE
- Ignition timing whole learning compensation:
- Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor = 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when IG OFF, and then make the whole learning incomplete.
- Enter the initial value (whole learning compensation factor = 0.5, Variable amount of whole learning compensation factor = 0.25) to the whole learning compensation factor and variable amount of whole learning compensation factor when making a normality judgment --> abnormality judgment, and then make the whole learning incomplete.

- Ignition timing partial learning compensation:
- Enter the initial value (0 degree CA) to the compensation value of partial learning zone with IG OFF.
- Enter the initial value (0 degree CA) to the compensation value of partial learning zone when making a normality judgment --> abnormality judgment.

- AVCS control:
- Maximum timing retard learning is not complete or maximum timing retard learning completion is not experienced.
- => ISC feedback compensation: Do not perform the AVCS actual timing advance compensation.
- Make the oil flow control solenoid valve drive duty a predetermined value (9.36%).

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