DTC Diagnosis Procedure
- INSPECTION START
Do you have CONSULT?
Do you have CONSULT?
YES
GO TO 2.
NO
GO TO 3.
- CHECK EVAP CANISTER VENT CONTROL VALVE CIRCUIT
With CONSULT
- Turn ignition switch OFF and then turn ON.
- Select "VENT CONTROL/V" in "ACTIVE TEST" mode of "ENGINE" using CONSULT.
- Touch "ON/OFF" on CONSULT screen.
- 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.
- CHECK EVAP CANISTER VENT CONTROL VALVE POWER SUPPLY
- Turn ignition switch OFF.
- Disconnect EVAP canister vent control valve harness connector.
- Turn ignition switch ON.
- Check the voltage between EVAP canister vent control valve harness connector and ground.
+
-
Voltage
(Approx.)
EVAP canister vent control valve
Connector
Terminal
C6
1
Ground
Battery voltage
Is the inspection result normal?
YES
GO TO 5.
NO
GO TO 4.
- CHECK EVAP CANISTER VENT CONTROL VALVE POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect IPDM E/R harness connector.
- Check the continuity between EVAP canister vent control valve harness connector and IPDM E/R harness connector.
+
-
Continuity
EVAP canister vent control valve
IPDM E/R
Connector
Terminal
Connector
Terminal
C6
1
E119
3
Existed
- 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.
- CHECK EVAP CANISTER VENT CONTROL VALVE OUTPUT SIGNAL CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between EVAP canister vent control valve harness connector and ECM harness connector.
+
-
Continuity
EVAP canister vent control valve
ECM
Connector
Terminal
Connector
Terminal
C6
2
E16
141
Existed
- Also check harness for short to power.
Is the inspection result normal?
YES
GO TO 6.
NO
Repair or replace error-detected parts.
- CHECK RUBBER TUBE FOR CLOGGING
- Disconnect rubber tube connected to EVAP canister vent control valve.
- Check the rubber tube for clogging.
Is the inspection result normal?
YES
GO TO 7.
NO
Clean the rubber tube using an air blower.
- CHECK EVAP CANISTER VENT CONTROL VALVE
Check the 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