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Home >> Kia >> 2005 >> Rio Base, Standard >> Repair and Diagnosis >> Engine Performance >> System >> DTC Troubleshooting Procedures >> DTC Troubleshooting >> DTC P0138: Ho2S Circuit High Input (Bank 1, Sensor 2) >> General Information >> DTC Description

DTC Description

ECM sets DTC P0138 if the ECM detects signal voltage higher than the possible range of a properly operating rear heated oxygen sensor (HO2S).

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