Dtc Description

DTC Description

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (EVAP canister vent control valve circuit is open or shorted.)

• EVAP canister vent control valve

FAIL-SAFE

Not applicable

Confirmation Procedure

Confirmation Procedure

1. PRECONDITIONING

   If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.

   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 the engine and wait at least 8 seconds.

   2. Check 1st trip DTC.

   Is 1st trip DTC detected?

   YES >>

   Proceed to DTC Diagnosis Procedure.

   NO-1 >>

   To check malfunction symptom before repair: Refer to Intermittent Incident.

   NO-2 >>

   Confirmation after repair: INSPECTION END

Dtc Diagnosis Procedure

DTC Diagnosis Procedure

1. INSPECTION START

   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.

      +		−	Voltage
      EVAP canister vent control valve
      Connector	Terminal
      B17	1	Ground	Battery voltage

   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.

      EVAP canister vent control valve		IPDM E/R		Continuity
      Connector	Terminal	Connector	Terminal
      B17	1	F96	75	Existed

   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 malfunctioning part.

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.

      EVAP canister vent control valve		ECM		Continuity
      Connector	Terminal	Connector	Terminal
      B17	2	E16	151	Existed

   4. Also check harness for short to power.

   Is the inspection result normal?

   YES >>

   GO TO 6.

   NO >>

   Repair or replace malfunctioning part.

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. Refer to Component Inspection.

   Is the inspection result normal?

   YES >>

   INSPECTION END

   NO >>

   Replace EVAP canister vent control valve. Refer to Exploded View.