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

1. Engine control system check

Refer to "51.Engine Control 1A.Troubleshooting(4JJ3 with DPD) Diagnostic system check-engine controls".

2. Prioritized DTC check

1) Turn OFF the ignition switch for 1 minute or more.

2) Connect the scan tool.

3) Start and warm up the engine.

4) Observe the DTC information with a scan tool. Is a DTC other than DTC P2195 set?

Yes

Go to the applicable DTC diagnosis.

No

=>Go to Air intake/exhaust system inspection.

3. Air intake/exhaust system inspection

1) Inspect the air intake/exhaust system for the following. Is the result normal?

Yes

Replace the heated oxygen sensor.

Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 with DPD) heated oxygen sensor removal".

Refer to "1.Engine 1Z.Engine Electrical Control(4JJ3 with DPD) heated oxygen sensor installation".

=>Go to Repair verification.

No

Repair or replace as necessary.

=>Go to Repair verification.

4. Repair verification

1) Connect all of the disconnected harness connectors.

2) Clear the DTC with a scan tool.

3) Turn OFF the ignition switch for 1 minute or more.

4) Start the engine.

5) Operate the vehicle under the conditions for running the DTC.

6) Observe the DTC information with a scan tool.