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ACTIVE TEST MODE NCEC0034S07 TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY) FUEL INJEC- I Engine: Return to the original I Change the amount of fuel injec- If trouble symptom disappears, see I Harness and connector I Fuel injectors I Heated oxygen sensor 1 (front) IACV-AAC/V I Engine: After warming up, idle I Change the IACV-AAC valve Engine speed changes according I Harness and connector I IACV-AAC valve ENG COOLANT I Engine: Return to the original I Change the engine coolant tem- If trouble symptom disappears, see I Harness and connector I Engine coolant temperature sen- I Fuel injectors IGNITION TIM- I Engine: Return to the original I Timing light: Set I Retard the ignition timing using If trouble symptom disappears, see I Adjust initial ignition timing POWER BAL- I Engine: After warming up, idle I Air conditioner switch “OFF” I Shift lever “N” I Cut off each injector signal one Engine runs rough or dies. I Harness and connector I Compression I Injectors I Power transistor I Spark plugs I Ignition coils COOLING FAN I Ignition switch: ON I Turn the cooling fan “ON” and Cooling fan moves and stops. I Harness and connector I Cooling fan motor FUEL PUMP I Ignition switch: ON I Turn the fuel pump relay “ON” Fuel pump relay makes the operat- I Harness and connector I Fuel pump relay SELF-LEARNING I In this test, the coefficient of self-learning control mixture ratio returns to the original coefficient by touching PURG VOL I Engine: After warming up, idle I Change the EVAP canister purge Engine speed changes according I Harness and connector I EVAP canister purge volume IDLE AIR VOL I In this test, the idle air volume that keeps the engine within the specified range is memorized in ECM. DTC CONFIRMATION MODE NCEC0034S08 SRT STATUS Mode NCEC0034S0801 For details, refer to “SYSTEM READINESS TEST (SRT) CODE”, SRT Work Support Mode This mode enables a technician to drive a vehicle to set the SRT ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION SR20DE CONSULT-II (Cont’d) EC-75 |