Code No. P2243: Air/Fuel Ratio Sensor (Lambda Sensor) Reference Voltage


DIAGNOSIS CONTENT



TROUBLE JUDGMENT


Check Conditions
  • Air/fuel ratio sensor (Lambda sensor) output voltage is above the threshold.
  • Air/fuel ratio sensor (Lambda sensor) heater is normal.
Judgment Criterion
  • Air/fuel ratio sensor (Lambda sensor) output voltage is above the threshold.


  • Air/fuel ratio sensor (Lambda sensor) output voltage is below the threshold.

PROBABLE CAUSE



  • Failed air/fuel ratio sensor (Lambda sensor)
  • Failed electrical harness in air/fuel ratio sensor (Lambda sensor) circuit