P0077

DTC P0077 INTAKE VALVE CONTROL CIRCUIT HIGH (BANK 1)

1. OUTLINE OF DIAGNOSIS
Detect the short circuit of oil switching solenoid valve.
Judge short circuit NG when the current is large though output duty is small.




2. ENABLE CONDITION

3. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.

4. DIAGNOSTIC METHOD




- Abnormality judgment
Judge NG when the continuous time of completing malfunction criteria becomes more than 2 seconds.




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

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

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

7. FAIL SAFE
None

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