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DTC P0138, P0158 HO2S2 EC-305 C D E F G H I J K L M A EC 4. CHECK HO2S2 CONNECTOR FOR WATER Check connectors for water. OK or NG OK >> GO TO 5. NG >> Repair or replace harness or connectors. 5. CHECK HEATED OXYGEN SENSOR 2 Refer to EC-308, "Component Inspection" OK or NG OK >> GO TO 6. NG >> Replace malfunctioning heated oxygen sensor 2. 6. CHECK INTERMITTENT INCIDENT Refer to EC-151, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" >> INSPECTION END PROCEDURE FOR MALFUNCTION B 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Loosen and retighten two ground screws on the body. Refer to . OK or NG OK >> GO TO 2. NG >> Repair or replace ground connections. Water should not exist. PBIB2192E |