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ON BOARD DIAGNOSTIC (OBD) SYSTEM EC-133 < FUNCTION DIAGNOSIS > [QR25DE FOR CALIFORNIA] C D E F G H I J K L M A EC N P O *: Leaving cooling fan OFF with CONSULT-III while engine is running may cause the engine to overheat. DTC & SRT CONFIRMATION MODE SRT STATUS Mode For details, refer to EC-112, "Diagnosis Description" SRT WORK SUPPORT Mode TEST ITEM CONDITION JUDGMENT CHECK ITEM (REMEDY) FUEL INJECTION • Engine: Return to the original trouble condition • Change the amount of fuel injec- tion using CONSULT-III. If trouble symptom disappears, see • Harness and connectors IGNITION TIMING • Engine: Return to the original trouble condition • Timing light: Set CONSULT-III. If trouble symptom disappears, see • Perform Idle Air Volume Learn- ing. POWER BALANCE • Engine: After warming up, idle the engine. • A/C switch OFF (M/T) • Cut off each fuel injector signal one at a time using CONSULT-III. Engine runs rough or dies. • Harness and connectors COOLING FAN* • Ignition switch: ON and “OFF” CONSULT-III. Cooling fan moves and stops. • Harness and connectors ENG COOLANT • Engine: Return to the original trouble condition • Change the engine coolant tem- perature using CONSULT-III. If trouble symptom disappears, see • Harness and connectors sensor • Fuel injector FUEL PUMP RELAY • Ignition switch: ON (Engine stopped) • Turn the fuel pump relay “ON” and “OFF” using CONSULT-III Fuel pump relay makes the operat- • Harness and connectors PURG VOL CONT/V • Engine: After warming up, run en- gine at 1,500 rpm. • Change the EVAP canister purge volume control solenoid valve Engine speed changes according • Harness and connectors FUEL/T TEMP SEN • Change the fuel tank temperature using CONSULT-III. VENT CONTROL/V • Ignition switch: ON (Engine stopped) • Turn solenoid valve “ON” and “OFF” with the CONSULT-III and Solenoid valve makes an operating • Harness and connectors V/T ASSIGN ANGLE • Engine: Return to the original trouble condition • Change intake valve timing using CONSULT-III. If trouble symptom disappears, see • Harness and connectors noid valve ALTERNATOR • Engine: Idle SULT-III. Battery voltage changes. • Harness and connectors TUMBLE CONTROL • Ignition switch: ON and “OFF” with CONSULT-III and Tumble control valve motor makes • Harness and connectors |