DTC P1111: Atmospheric Pressure Sensor Circuit Malfunction (High Input)

• Detect the open/short circuit of atmospheric pressure sensor.
• Judge NG when out of the standard value.

Atmospheric pressure sensor is built in ECM.

Always perform the diagnosis continuously.

Judge NG when the continuous time until completing the malfunction criteria below becomes more than the time (2.5 seconds) needed for diagnosis. Judge fail safe NG when the cumulative time until completing the malfunction criteria below becomes more than the time (0.1 seconds) needed for diagnosis. Judge OK and clear the NG when the malfunction criteria below are not completed.

Judgment Value 

Time Needed for Diagnosis:  2.5 seconds

Malfunction Indicator Light Illumination:  Illuminates as soon as malfunction occurs.

• When the OK idling cycle is completed 40 times in a row
• When "Clear Memory" was performed

• When the OK driving cycle is completed 3 times in a row
• When "Clear Memory" was performed

Make the atmospheric pressure 101 kPa (760 mmHg, 30 inHg).

Memorize the freeze frame data. (For test mode $02)