P1110

DTC P1110 - ATMOSPHERIC PRESSURE SENSOR CIRCUIT MALFUNCTION (LOW INPUT)

OUTLINE OF DIAGNOSIS
Detect the open or short circuit of atmospheric pressure sensor.
Judge NG when out of the standard value.

COMPONENT DESCRIPTION
Atmospheric pressure sensor is built in ECM.




ENABLE CONDITION

GENERAL DRIVING CYCLE
Always perform the diagnosis continuously.

DIAGNOSTIC METHOD




- Abnormality Judgment
Judge NG when the continuous time of completing the malfunction criteria becomes more than 0.5 seconds.




- Normality Judgment
Judge OK and clear the NG when the malfunction criteria are completed.


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

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

FAIL SAFE
Atmospheric pressure sensor process: Fix the atmospheric pressure to 101.3 kPa (760 mmHg, 29.9 inHg).

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