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P0137, P0157 HO2S2 EC-697 < DTC/CIRCUIT DIAGNOSIS > [VK56DE] C D E F G H I J K L M A EC N P O 1. Check harness continuity between ECM terminal and HO2S2 terminal as per the following. Refer to Wiring Diagram. 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-697, "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:0000000007358568 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 P0137 55 1 1 P0157 74 1 2 Continuity should exist. DTC Terminals Bank ECM Sensor P0137 55 1 1 P0157 74 1 2 Continuity should not exist. August 2012 2012 Pathfinder |