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ECK-308 < DTC/CIRCUIT DIAGNOSIS > [K9K] P1485 LOW PRESSURE EGR VOLUME CONTROL VALVE P1485 LOW PRESSURE EGR VOLUME CONTROL VALVE DTC Logic INFOID:0000000010289937 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at >> GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE 1. Turn ignition switch ON and wait at least 1 second. 2. Check DTC. Is DTC detected? YES >> Proceed to ECK-308, "Diagnosis Procedure" NO >> INSPECTION END Diagnosis Procedure INFOID:0000000010508573 1. CHECK LOW PRESSURE EGR VOLUME CONTROL VALVE Visually check low pressure EGR volume control valve for chipping. Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace error-detected parts. 2. CHECK DIESEL PARTICULATE FILTER ECK-359, "Component Inspection" . Is the inspection result normal? YES >> GO TO 3. NO >> Replace diesel particulate filter. 3. CHECK ECM HARNESS CONNECTOR CONNECTIONS Check ECM harness connector connection. 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. Is the inspection result normal? YES >> GO TO 5. NO >> Repair or replace error-detected parts. 5. CHECK LOW PRESSURE EGR VOLUME CONTROL VALVE CIRCUIT FOR OPEN AND SHORT DTC No. CONSULT screen terms (Trouble diagnosis content) DTC detecting condition Possible cause P1485 LOW PRESSURE EGR PERATURE TOO HIGH • ECM detects low pressure EGR volume control valve circuit is short circuit to ground. • ECM detects low pressure EGR volume control valve circuit is short circuit to battery. • Low pressure EGR volume control valve circuit temperature is too high. • Harness or connectors (Low pressure EGR volume control • Low pressure EGR volume control valve |