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DIAGNOSIS SYSTEM (ECM) EC-1015 < SYSTEM DESCRIPTION > [VQ40DE FOR MEXICO] C D E F G H I J K L M A EC N P O *: Leaving cooling fan OFF with CONSULT while engine is running may cause the engine to overheat. DTC WORK SUPPORT MODE Test Item TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY) FUEL INJEC- • Engine: Return to the original non-standard condition • Change the amount of fuel injec- tion using CONSULT. If malfunctioning symptom disap- • Harness and connectors IGNITION TIM- • Engine: Return to the original non-standard condition • Timing light: Set CONSULT. If malfunctioning symptom disap- • Perform Idle Air Volume Learning. POWER BAL- • Engine: After warming up, idle the engine. • A/C switch: OFF one at a time using CONSULT. Engine runs rough or stops. • Harness and connectors COOLING FAN* • Ignition switch: ON OFF using CONSULT. Cooling fan moves and stops. • Harness and connectors ENG COOLANT • Engine: Return to the original non-standard condition • Change the engine coolant tem- perature using CONSULT. If malfunctioning symptom disap- • Harness and connectors sor • Fuel injector FUEL PUMP RE- • Ignition switch: ON (Engine stopped) • Turn the fuel pump relay ON and OFF using CONSULT and listen Fuel pump relay makes the operat- • Harness and connectors VIAS S/V-1 • Ignition switch: ON with CONSULT and listen for op- Solenoid valve makes an operating • Harness and connectors PURG VOL • Engine: After warming up, run en- gine at 1,500 rpm. • Change the EVAP canister purge volume control solenoid valve Engine speed changes according to • Harness and connectors FUEL/T TEMP • Change the fuel tank temperature using CONSULT. VENT CON- • Ignition switch: ON (Engine stopped) • Turn solenoid valve ON and OFF with the CONSULT and listen to Solenoid valve makes an operating • Harness and connectors V/T ASSIGN AN- • Engine: Return to the original non-standard condition • Change intake valve timing using CONSULT. If malfunctioning symptom disap- • Harness and connectors noid valve ALTERNATOR • Engine: Idle SULT. Battery voltage changes. • Harness and connectors |