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P0138, P0158 HO2S2 EC-177 < DTC/CIRCUIT DIAGNOSIS > [VQ40DE] C D E F G H I J K L M A EC N P O 2. Check harness continuity between the following terminals and ground. Refer to Wiring Diagram. 3. Also check harness for short to power. OK >> GO TO 5. NG >> Repair open circuit or short to ground or short to power in harness or connectors. 5. CHECK HEATED OXYGEN SENSOR 2 EC-177, "Component Inspection" OK or NG OK >> GO TO 6. NG >> Replace malfunctioning heated oxygen sensor 2. Refer to 6. CHECK INTERMITTENT INCIDENT GI-37, "Intermittent Incident" . >> INSPECTION END Component Inspection INFOID:0000000007358094 HEATED OXYGEN SENSOR 2 With CONSULT 1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT. with CONSULT. DTC Terminals Bank ECM Sensor P0138 74 1 1 P0158 55 1 2 Continuity should exist. DTC Terminals Bank ECM Sensor P0138 74 1 1 P0158 55 1 2 Continuity should not exist. August 2012 2012 Pathfinder |