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P1487 LOW PRESSURE EGR VOLUME CONTROL VALVE EC-1117 < DTC/CIRCUIT DIAGNOSIS > [R9M] C D E F G H I J K L M A EC N P O Is the inspection result normal? YES >> GO TO 4. NO >> Repair or replace error-detected parts. 4. CHECK LOW PRESSURE EGR VOLUME CONTROL VALVE HARNESS CONNECTOR CONNECTIONS Check low pressure EGR volume control valve harness connector connection. YES >> GO TO 5. NO >> Repair or replace error-detected parts. 5. CHECK LOW PRESSURE EGR VOLUME CONTROL VALVE CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Check low pressure EGR volume control valve circuit for open and short. Is the inspection result normal? YES >> GO TO 6. NO >> Repair or replace error-detected parts. 6. DTC CONFIRMATION PROCEDURE 1. Erase DTC. 2. Perform DTC confirmation procedure again. Refer to Is the DTC P1486 displayed again? YES >> GO TO 7. NO >> INSPECTION END 7. CHECK LOW PRESSURE EGR VOLUME CONTROL VALVE MOTOR EC-1120, "Component Inspection (Low Pressure EGR Volume Control Valve Motor)" . Is the inspection result normal? YES >> INSPECTION END NO >> Replace error-detected parts. Component Inspection (Low Pressure EGR Volume Control Valve Motor) INFOID:0000000010935810 1. CHECK LOW PRESSURE EGR VOLUME CONTROL VALVE MOTOR 1. Turn ignition switch OFF. 2. Disconnect low pressure EGR volume control valve harness connector. 3. Check resistance between low pressure EGR volume control valve terminals as follows. Is the inspection result normal? YES >> INSPECTION END + - Continuity ECM Low pressure EGR volume control valve Connector Terminal Connector Terminal F117 55 F155 1 Existed 65 2 69 3 F118 136 6 143 5 Low pressure EGR volume control valve Condition Resistance + - Terminal 5 6 Temperature ° C ( ° F) 20 (68) 1.41 Ω |