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P0138, P0158 HO2S2 EC-627 < COMPONENT 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. 3. Also check harness for short to power. OK or NG 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-627, "Component Inspection" OK or NG OK >> GO TO 6. NG >> Replace malfunctioning heated oxygen sensor 2. 6. CHECK INTERMITTENT INCIDENT GI-46, "Intermittent Incident" . >> INSPECTION END Component Inspection INFOID:0000000005273598 HEATED OXYGEN SENSOR 2 With CONSULT-III 1. Turn ignition switch ON and select “DATA MONITOR” mode with CONSULT-III. 2. Start engine and warm it up to the normal operating temperature. 3. Turn ignition switch OFF and wait at least 10 seconds. 4. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load. 5. Let engine idle for 1 minute. 6. Select “FUEL INJECTION” in “ACTIVE TEST” mode, and select “HO2S2 (B1)/(B2)” as the monitor item 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. |