P2237
DTC P2237: O2 Sensor Positive Current Control Circuit / Open (Sensor-1, Bank-1)Wiring Diagram
Wiring Diagram:
A/F Sensor Description
Refer to A/F Sensor Description.
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 DTCs are not detected: DTCs related to A/F sensor heater, ECT sensor, IAT sensor and A/F sensor (other than P2237)
1. With ignition switch turned 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.
DTC Troubleshooting
