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P0138

DTC P0137 / P0138: O2 Sensor Circuit Low Voltage / High Voltage (Sensor-2, Bank-1) (EVAP Leak Check Model)

Wiring Diagram

Wiring Diagram:





DTC Detecting Condition and Trouble Area

DTC Detecting Condition And Trouble Area:





DTC Confirmation Procedure

NOTE: Check to make sure that following conditions are satisfied when using this "DTC Confirmation Procedure".
^ The following DTC is not detected: HO2S 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 3 min. or more.
5. Check DTC and pending DTC.

DTC Troubleshooting

Step 1-3: