P2231

DTC P2231: Heated Oxygen Sensor (HO2S) Signal Circuit Shorted to Heater Circuit (Sensor-1)

Wiring Diagram:

DTC Detecting Condition And Trouble Area:

DTC Confirmation Procedure

NOTE:
Check that the following conditions are satisfied when using this DTC Confirmation Procedure.
- Intake air temp.: -14 °C, 6.8 °F or higher.
- Altitude (barometric pressure): 2020 m, 6650 ft or less (540 mmHg, 72 kPa or more)

1. With ignition switch turned OFF, connect scan tool.
2. Turn On ignition switch and clear DTC using scan tool
3. Start engine and run it at idle speed for 10 minutes.
4. Check DTC and pending DTC.

Step 1 - 2:

Troubleshooting