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EC-210 < COMPONENT DIAGNOSIS > [VQ35HR] P0138, P0158 HO2S2 Use component function check to check the overall function of the heated oxygen sensor 2 circuit. During this YES >> INSPECTION END NO >> Go to Component Function Check INFOID:0000000000956603 1. PERFORM COMPONENT FUNCTION CHECK-I Without CONSULT-III 1. Start engine and warm it up to the normal operating temperature. 2. Turn ignition switch OFF and wait at least 10 seconds. 3. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load. 4. Let engine idle for 1 minute. 5. Check the voltage between ECM harness connector and ground under the following condition. Is the inspection result normal? YES >> INSPECTION END NO >> GO TO 2. 2. PERFORM COMPONENT FUNCTION CHECK-II Check the voltage between ECM harness connector and ground under the following condition. Is the inspection result normal? YES >> INSPECTION END NO >> GO TO 3. 3. PERFORM COMPONENT FUNCTION CHECK-III Check the voltage between ECM harness connector and ground under the following condition. Is the inspection result normal? YES >> INSPECTION END NO >> Go to Diagnosis Procedure INFOID:0000000000956604 1. INSPECTION START Confirm the detected malfunction (A or B). Refer to . Which malfunction is detected? A >> GO TO 2 B >> GO TO 9. DTC ECM Ground Condition Voltage Connector Terminal P0138 F102 76 Ground Revving up to 4,000 rpm under no load at The voltage should be below 0.18V at least P0158 80 DTC ECM Ground Condition Voltage Connector Terminal P0138 F102 76 Ground Keeping engine at idle for 10 minutes The voltage should be below 0.18V at least P0158 80 DTC ECM Ground Condition Voltage Connector Terminal P0138 F102 76 Ground Coasting from 80 km/h (50 MPH) in D po- The voltage should be below 0.18V at least P0158 80 |