P0447

P0447 EVAP CANISTER VENT CONTROL VALVE

DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
1.Turn ignition switch OFF and wait at least 10 seconds.
2.Turn ignition switch ON.
3.Turn ignition switch OFF and wait at least 10 seconds.

TESTING CONDITION:
Before performing the following procedure, confirm battery voltage is more than 11 V at idle.

- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

1.Start engine and wait at least 8 seconds.
2.Check 1st trip DTC.
Is 1st trip DTC detected?
YES- Proceed to .
NO- INSPECTION END


Diagnosis Procedure


1. INSPECTION START

Do you have CONSULT?
Do you have CONSULT?
YES- GO TO 2.
NO- GO TO 3.

2. CHECK EVAP CANISTER VENT CONTROL VALVE CIRCUIT

With CONSULT
1.Turn ignition switch OFF and then turn ON.
2.Select "VENT CONTROL/V" in "ACTIVE TEST" mode of "ENGINE" using CONSULT.
3.Touch "ON/OFF" on CONSULT screen.
4.Check for operating sound of the valve.
Clicking sound should be heard.
Is the inspection result normal?
YES- GO TO 7.
NO- GO TO 3.

3. CHECK EVAP CANISTER VENT CONTROL VALVE POWER SUPPLY

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. CHECK EVAP CANISTER VENT CONTROL VALVE POWER SUPPLY CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect IPDM E/R harness connector.
3.Check the continuity between EVAP canister vent control valve harness connector and IPDM E/R harness connector.





4.Also check harness for short to ground.
Is the inspection result normal?
YES- Perform the trouble diagnosis for power supply circuit.
NO- Repair or replace error-detected parts.

5. CHECK EVAP CANISTER VENT CONTROL VALVE OUTPUT SIGNAL CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect ECM harness connector.
3.Check the continuity between EVAP canister vent control valve harness connector and ECM harness connector.





4.Also check harness for short to power.
Is the inspection result normal?
YES- GO TO 6.
NO- Repair or replace error-detected parts.

6. CHECK RUBBER TUBE FOR CLOGGING

1.Disconnect rubber tube connected to EVAP canister vent control valve.
2.Check the rubber tube for clogging.
Is the inspection result normal?
YES- GO TO 7.
NO- Clean the rubber tube using an air blower.

7. CHECK EVAP CANISTER VENT CONTROL VALVE

Check the EVAP canister vent control valve. .
Is the inspection result normal?
YES- Check intermittent incident. Intermittent Incident.
NO- Replace EVAP canister vent control valve. Exploded View


Component Inspection


1. CHECK EVAP CANISTER VENT CONTROL VALVE-I

1.Turn ignition switch OFF.
2.Remove EVAP canister vent control valve from EVAP canister.





3.Check portion (A) of EVAP canister vent control valve for being rusted.
Is it rusted?
YES- Replace EVAP canister vent control valve. Exploded View(2WD), "AWD
Exploded View"(AWD).
NO- GO TO 2.

2. CHECK EVAP CANISTER VENT CONTROL VALVE-II

With CONSULT
1.Reconnect harness connectors disconnected.
2.Turn ignition switch ON.
3.Perform "VENT CONTROL/V" in "ACTIVE TEST" mode of "ENGINE" using CONSULT.





4.Check air passage continuity and operation delay time.
Make sure new O-ring is installed properly.





Without CONSULT
Check air passage continuity and operation delay time under the following conditions.
Make sure new O-ring is installed properly.





Is the inspection result normal?
YES- GO TO 3.
NO- Replace EVAP canister vent control valve. Exploded View(2WD), Exploded View(AWD).

3. CHECK EVAP CANISTER VENT CONTROL VALVE-III

With CONSULT
1.Clean the air passage [portion (A) to (B)] of EVAP canister vent control valve using an air blower.
2.Perform "VENT CONTROL/V" in "ACTIVE TEST" mode of "ENGINE" using CONSULT.





3.Check air passage continuity and operation delay time.
Make sure new O-ring is installed properly.





Without CONSULT
1.Clean the air passage [portion (A) to (B)] of EVAP canister vent control valve using an air blower.
2.Check air passage continuity and operation delay time under the following conditions.
Make sure new O-ring is installed properly.





Is the inspection result normal?
YES- INSPECTION END
NO- Replace EVAP canister vent control valve. Exploded View(2WD), Exploded View(AWD).