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ECK-300 < DTC/CIRCUIT DIAGNOSIS > [K9K] P1481 EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR Is the inspection result normal? YES >> GO TO 4. NO >> Perform trouble diagnosis for power supply circuit. 4. CHECK EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Check exhaust electric throttle control actuator circuit for open and short. Is the inspection result normal? YES >> GO TO 5. NO >> Repair or replace error-detected parts. 5. CHECK EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR Perform ECK-303, "Component Inspection (Exhaust Throttle Position Sensor)" , Inspection (Exhaust Throttle Control Motor)" Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-41, "Intermittent Incident" . NO >> GO TO 6. 6. REPLACE EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR 1. Replace exhaust electric throttle control actuator. 2. >> INSPECTION END Component Inspection (Exhaust Throttle Control Motor) INFOID:0000000010289927 1. CHECK EXHAUST THROTTLE CONTROL MOTOR 1. Disconnect exhaust electric throttle control actuator harness connector. 2. Check the resistance between exhaust throttle control motor terminals as follows. Is the inspection result normal? YES >> INSPECTION END + - Voltage Exhaust electric throttle control ac- tuator Connector Terminal F59 5 Ground Battery voltage + + Continuity ECM Exhaust electric throttle control actuator Connector Terminal Connector Terminal F80 57 F59 1 Existed 62 2 76 3 F81 149 6 150 5 Exhaust throttle control actuator Resistance + - Terminal 5 6 2.65 - 3.25 Ω |