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Possible Cause NCEC0523 I Harness or connectors I EGR volume control valve SEF174Y DTC Confirmation Procedure NCEC0524 NOTE: WITH CONSULT-II NCEC0524S01 1) Turn ignition switch “ON” and select “DATA MONITOR” mode 2) Start engine and warm it up to normal operating temperature. 3) Rev engine from idle to 2,000 rpm 10 times. 4) If 1st trip DTC is detected, go to “Diagnostic Procedure”, WITH GST NCEC0524S02 Follow the procedure “With CONSULT-II” above. GI MA EM LC FE CL MT AT AX SU BR ST RS BT HA SC EL IDX DTC P0403 EGR VOLUME CONTROL VALVE (CIRCUIT) Possible Cause EC-359 |