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EC9-300 < DTC/CIRCUIT DIAGNOSIS > [R9M] P1485 LOW PRESSURE EGR VOLUME CONTROL VALVE 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 P1485 displayed again? YES >> GO TO 7. NO >> Check intermittent incident. Refer to GI-41, "Intermittent Incident" . 7. CHECK LOW PRESSURE EGR VOLUME CONTROL VALVE MOTOR EC9-306, "Component Inspection (Low Pressure EGR Volume Control Valve Motor)" . Is the inspection result normal? YES >> Check intermittent incident. Refer to GI-41, "Intermittent Incident" . NO >> Replace error-detected parts. Component Inspection (Low Pressure EGR Volume Control Valve Motor) INFOID:0000000010503343 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 NO >> Replace low pressure EGR volume control valve. + - Continuity ECM Low pressure EGR volume control valve Connector Terminal Connector Terminal F82 55 F77 1 Existed 65 2 69 3 F83 136 6 143 5 Low pressure EGR volume control valve Condition Resistance + - Terminal 5 6 Temperature ° C ( ° F) 20 (68) 1.41 Ω |