DTC P1110: Atmospheric Pressure Sensor Circuit Malfunction (Low Input)

Detect the open or 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.

• Abnormality Judgment 

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

  Judgment Value 

  JUDGMENT VALUE CHART
  
  

  Malfunction Criteria	Threshold Value
  Ignition switch	ON
  Output voltage	<0.118 V

  Time Needed for Diagnosis:  0.5 seconds

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

• Normality Judgment 

  Judge OK and clear the NG when the malfunction criteria below are completed.

  Judgment Value 

  JUDGMENT VALUE CHART
  
  

  Malfunction Criteria	Threshold Value
  Ignition switch	ON
  Output voltage	"GREATER THAN EQUAL TO" 0.118 V

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

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

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

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