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SEF058Y PROCEDURE FOR MALFUNCTION A NHEC0253S01 TESTING CONDITION: With CONSULT-II NHEC0253S0101 1) Turn ignition switch “ON”. 2) Select “DATA MONITOR” mode with CONSULT-II. 3) Start engine and let it idle. 4) Keep engine speed at 2,500 rpm for three seconds, then let it 5) Perform step 4 once more. 6) If 1st trip DTC is detected, go to “Diagnostic Procedure”, With GST NHEC0253S0102 Follow the procedure “With CONSULT-II” above. SEF174Y PROCEDURE FOR MALFUNCTION B NHEC0253S02 TESTING CONDITION: I Before performing the following procedure, confirm that I Always perform the test at a temperature above −10°C With CONSULT-II NHEC0253S0201 1) Open engine hood. 2) Start engine and warm it up to normal operating temperature. 3) Turn ignition switch “OFF” and wait at least 10 seconds. 4) Turn ignition switch “ON” again and select “DATA MONITOR” 5) Start engine and run it for at least 1 minute at idle speed. 6) If 1st trip DTC is detected, go to “Diagnostic Procedure”, With GST NHEC0253S0202 Follow the procedure “With CONSULT-II” above. GI MA EM LC FE AT AX SU BR ST RS BT HA SC EL IDX DTC P0505 IDLE AIR CONTROL VALVE (IACV) — AUXILIARY AIR CONTROL (AAC) VALVE DTC Confirmation Procedure (Cont’d) EC-431 |