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DTC P0234 TC SYSTEM EC-489 [YD (WITHOUT EURO-OBD)] C D E F G H I J K L M A EC 7. CHECK TURBOCHARGER BOOST CONTROL ACTUATOR 1. Turn ignition switch OFF. 2. Install a vacuum pump to turbocharger boost control actuator. 3. Make sure that the turbocharger boost control actuator rod OK or NG OK >> GO TO 8. NG >> Replace turbocharger assembly. 8. CHECK TURBOCHARGER BOOST SENSOR Refer to EC-494, "Component Inspection" . OK or NG OK >> GO TO 9. NG >> Replace turbocharger boost sensor. 9. CHECK INTERMITTENT INCIDENT Refer to EC-408, "TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" . >> INSPECTION END Component Inspection EBS0156O TURBOCHARGER BOOST CONTROL SOLENOID VALVE 1. Disconnect turbocharger boost control solenoid valve harness 2. Apply 12V direct current between turbocharger boost control solenoid valve terminals. 3. Check air passage continuity of turbocharger boost control sole- Operation takes less than 1 second. If NG, replace turbocharger boost control solenoid valve. MBIB1022E MBIB0921E CONDITIONS Air passage continuity between A and B Air passage continuity between A and C 12V direct current supply Yes No No supply No Yes MBIB0996E |