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EC-302 < DTC/CIRCUIT DIAGNOSIS > [VQ35DE] P0447 EVAP CANISTER VENT CONTROL VALVE 1. Turn ignition switch OFF and then ON. 2. Select “VENT CONTROL/V” in “ACTIVE TEST” mode with CONSULT. 3. Touch “ON/OFF” on CONSULT screen. 4. Check for operating sound of the valve. Is the inspection result normal? YES >> GO TO 7. NO >> GO TO 3. 3. CHECK EVAP CANISTER VENT CONTROL VALVE POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect EVAP canister vent control valve harness connector. 3. Turn ignition switch ON. 4. Check the voltage between EVAP canister vent control valve harness connector and ground. Is the inspection result normal? YES >> GO TO 5. NO >> GO TO 4. 4. DETECT MALFUNCTIONING PART Check the following. >> Repair open circuit, short to ground or short to power in harness or connectors. 5. CHECK EVAP CANISTER VENT CONTROL VALVE OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Check the continuity between ECM harness connector and EVAP canister vent control valve harness con- 4. Also check harness for short to ground and short to power. Is the inspection result normal? YES >> GO TO 7. NO >> GO TO 6. 6. DETECT MALFUNCTIONING PART Check the following. >> Repair open circuit, short to ground or short to power in harness or connectors. 7. CHECK RUBBER TUBE FOR CLOGGING 1. Disconnect rubber tube connected to EVAP canister vent control valve. Clicking sound should be heard. EVAP canister vent control valve Ground Voltage Connector Terminal B65 1 Ground Battery voltage EVAP canister vent control valve ECM Continuity Connector Terminal Connector Terminal B65 2 E16 109 Existed |