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P0131

DTC P0131 / P0132: O2 Sensor Circuit Low Voltage / High Voltage (Sensor-1, Bank-1)

Wiring Diagram

Wiring Diagram:





DTC Detecting Condition and Trouble Area

DTC Detecting Condition And Trouble Area - EVAP Leak Check Model:




DTC Detecting Condition And Trouble Area - Non-EVAP-Leak-Check Model:





DTC Confirmation Procedure

NOTE: check to make sure that the following conditions are satisfied when using this "DTC Confirmation Procedure".

EVAP leak check model:
^ The following DTCs are not detected: DTCs related to A/F sensor heater and A/F sensor (other than P0131 and P0132)

Non-EVAP-leak-check model:
^ The following DTCs are not detected: DTCs related to A/F sensor heater

1. With ignition switch OFF, connect scan tool to DLC.
2. Turn ON ignition switch and clear DTC.
3. Start engine and warm up to normal operating temperature.
4. Run engine at idle speed for 1 min. or more.
5. Check DTC and pending DTC.

DTC Troubleshooting

Step 1-4: