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Home >> Hyundai >> 2004 >> Accent Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control System Diagnosis (1 Of 2) >> DTC Troubleshooting Procedures >> DTC P0138: O2 Sensor Circuit High Input (Bank1/SESN0R2) >> DTC Description
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DTC Description

PCM sets DTC P0132 or P0138 if the PCM detects signal voltage higher than the possible range of a properly operating front or rear heated oxygen sensor (HO2S) respectively.

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