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Home >> Kia >> 2020 >> Optima Plug-In Hybrid EX >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System Diagnosis (1 Of 6) (PHEV) >> DTC P0038-00: HO2S Heater Control Circuit High (Bank 1/Sensor 2) >> DTC Information >> DTC Description

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DTC Description

PCM sets DTC P003800 if the PCM detects that the rear HO2S heater control line is open or shorted to battery line

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