DTC P2195 Lambda Sensor Performance Error (Air O2) (4JJ3 with DPD)

1. DTC P2195 description

The heated oxygen sensor is installed at the inlet of the DPD assembly and detects the oxygen concentration in the exhaust gas. This sensor has a pump current circuit, reference voltage circuit, low reference circuit, and heater circuit. If the ECM detects a performance malfunction in the heated oxygen sensor, the DTC is set.

2. Condition for setting DTC P2195

Condition for running the DTC

  • The battery voltage is 10 to 16 V.
  • The ignition switch is ON.
  • The fuel injection quantity is 0 mm3/st.
  • The engine speed is 900 rpm or more.
  • The EGR control is commanded OFF.
  • The heated oxygen sensor is in operation.
  • DPD regeneration is stopped.
  • DTCs P0130 and P0606 are not set.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC P0130 Lambda Sensor Circuit Failure".

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC P0606 ECM/PCM Processor".

Condition for setting the DTC

  • The ECM detects a performance malfunction in the heated oxygen sensor.

3. Action taken when DTC P2195 sets

  • The ECM illuminates the MIL. Refer to Action taken when DTC sets - Type A.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".

  • The ECM inhibits the EGR control.

4. Condition for clearing DTC P2195

  • Refer to Conditions for clearing the MIL/DTC - Type A or Type B.

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) DTC type definitions".

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