|
|
Monitored item [Unit] ECM signals Main signals Description Remarks A/F ALPHA-B1 [%] q I Indicates the mean value of the air-fuel ratio I When the engine is running, specifi- I This data also includes the data for A/F ALPHA-B2 [%] q NOTE: I Any monitored item that does not match the vehicle being diagnosed is deleted from the display automatically. I Regarding R50 model, “B1” indicates bank 1 and “B2” indicates bank 2. ACTIVE TEST MODE NBEC0034S07 TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY) FUEL INJECTION 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 IGNITION TIMING 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 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 POWER BAL- I Engine: After warming up, idle I A/C 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 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 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 VIAS SOL VALVE I Ignition switch: ON I Turn solenoid valve “ON” and Solenoid valve makes an operating I Harness and connector I Solenoid valve SWIRL CONT I Ignition switch: ON I Turn solenoid valve “ON” and Solenoid valve makes an operating I Harness and connector I Solenoid valve PURG VOL I Engine: After warming up, run I Change the EVAP canister purge Engine speed changes according I Harness and connector I Solenoid valve GI MA EM LC FE AT TF PD AX SU BR ST RS BT HA SC EL IDX ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION CONSULT-II (Cont’d) EC-91 |