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EC-208 < DTC/CIRCUIT DIAGNOSIS > [VQ35DE] P0138, P0158 HO2S2 2. Perform DTC confirmation procedure again. >> GO TO 3. 5. PERFORM COMPONENT FUNCTION CHECK FOR MALFUNCTION B Perform component function check. Refer to EC-208, "Component Function Check" NOTE: YES >> INSPECTION END NO >> Go to Component Function Check INFOID:0000000005536614 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. Turn ignition switch ON. 4. Turn ignition switch OFF and wait at least 10 seconds. 5. Start engine and keep the engine speed between 3,500 and 4,000 rpm for at least 1 minute under no load. 6. Let engine idle for 1 minute. 7. Check the voltage between ECM harness connector terminals under the following conditions. 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 terminals under the following conditions. Is the inspection result normal? YES >> INSPECTION END NO >> GO TO 3. 3. PERFORM COMPONENT FUNCTION CHECK-III DTC ECM Condition Voltage Connec- tor + – Terminal Terminal P0138 F8 33 [HO2S2 (bank 1) signal] 35 (Sensor Revving up to 4,000 rpm under no The voltage should be below 0.18 V P0158 34 [HO2S2 (bank 2) signal] DTC ECM Condition Voltage Connec- tor + – Terminal Terminal P0138 F8 33 [HO2S2 (bank 1) signal] 35 (Sensor Keeping engine speed at idle for 10 The voltage should be below 0.18 V P0158 34 [HO2S2 (bank 2) signal] |