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Home › Acura › 2019 › RDX Base, AWD › Repair and Diagnosis › Engine Performance › System › Engine Control System - DTC Diagnostics (P0010 - P0299) › DTC Troubleshooting › DTC P0138 (2019) › Overview

DTC P0138 (2019): Overview

If the secondary HO2S (Sensor 2) output voltage is higher than a specified value, the PCM determines an abnormality and stores the DTC.