Diagnostic Test

Will CONSULT be used?

Will CONSULT be used?

YES 

GO TO STEP 2  .

NO 

GO TO STEP 3  .

With CONSULT 

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.

   Clicking sound should be heard.

Is the inspection result normal?

YES 

GO TO STEP   6  .

NO 

GO TO STEP 3  .

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.

   EVAP canister vent control valve		Ground	Voltage
   Connector	Terminal
   B31	1	Ground	Battery voltage

Is the inspection result normal?

YES 

GO TO STEP 4  .

NO 

Perform the trouble diagnosis for power supply circuit.

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 connector.

   Refer to Wiring Diagram.

   EVAP canister vent control valve		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   B31	2	E32	141	Existed

4. Also check harness for short to ground and short to power.

Is the inspection result normal?

YES 

GO TO STEP 5  .

NO 

Repair open circuit, short to ground or short to power in harness or connectors.

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 STEP 6  .

NO 

Clean the rubber tube using an air blower.

Check EVAP canister vent control valve. Refer to COMPONENT INSPECTION .

Is the inspection result normal?

YES 

Check intermittent incident. Refer to INTERMITTENT INCIDENT .

NO 

Replace EVAP canister vent control valve. Refer to REMOVAL AND INSTALLATION .