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EC9-290 < DTC/CIRCUIT DIAGNOSIS > [R9M] 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. DTC CONFIRMATION PROCEDURES 1. Erase DTC. 2. Perform DTC confirmation procedure again. Refer to . Is the DTC P1481 displayed again? YES >> GO TO 6. NO >> Check intermittent incident. Refer to GI-41, "Intermittent Incident" . 6. CHECK EXHAUST ELECTRIC THROTTLE CONTROL ACTUATOR Perform EC9-291, "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 >> Replace exhaust electric throttle control actuator. Component Inspection (Exhaust Throttle Control Motor) INFOID:0000000010503310 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? + - 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 F83 104 F59 1 Existed 113 3 117 2 132 5 147 6 Exhaust throttle control actuator Resistance + - Terminal 5 6 2.65 - 3.25 Ω |