P1443
DTC P1443 VENT CONTROL SOLENOID VALVE FUNCTION PROBLEM1. OUTLINE OF DIAGNOSIS
Detect the abnormal function (stuck closed) of the drain valve.
Judge as NG when fuel tank pressure is low.
2. COMPONENT DESCRIPTION
3. ENABLE CONDITION
Enable Conditions:
4. GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.
5. DIAGNOSTIC METHOD
Abnormality Judgment
Judge as NG when the continuous time of meeting the malfunction criteria below becomes more than 3 seconds.
Time Needed for Diagnosis: 3 seconds
Malfunction Indicator Light Illumination: Illuminates as soon as a malfunction occurs.
Normality Judgment
Judge as OK and clear the NG when all the malfunction criteria below are met.
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 CONDITION
- When the OK driving cycle is completed 3 times in a row
- When "Clear Memory" is performed
8. FAIL SAFE
Pressure control solenoid valve control: Open the pressure control solenoid valve.
9. ECM OPERATION AT DTC SETTING
Memorize the freeze frame data. (For test mode $02)