DTC Description
DTC DETECTION LOGIC
DTC No. | CONSULT screen terms (Trouble diagnosis content) | DTC detecting condition | |
P0443 | PURG VOLUME CONT/V (Evaporative emission system purge control valve circuit) | A | The canister purge flow is detected during the vehicle is stopped while the engine is running, even when EVAP canister purge volume control solenoid valve is completely closed. |
B | The canister purge flow is detected during the specified driving conditions, even when EVAP canister purge volume control solenoid valve is completely closed. |
POSSIBLE CAUSE
FAIL-SAFE
Not applicable
DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
TESTING CONDITION:
Do you have CONSULT YES >> GO TO 2.
NO >> GO TO 4.
2.PERFORM DTC CONFIRMATION PROCEDURE A
With CONSULT
FUEL T/TMP SE: 0 - 35°C (32 - 95°F)
Is 1st trip DTC detected? YES >> Proceed to EC-312, "Diagnosis Procedure".
NO >> GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE B
With CONSULT
Which is displayed on CONSULT? OK >> INSPECTION END
NG >> Proceed to EC-312, "Diagnosis Procedure".
4.PERFORM DTC CONFIRMATION PROCEDURE A
With GST
Is 1st trip DTC detected? YES >> Proceed to EC-312, "Diagnosis Procedure".
NO >> GO TO 5.
5.PERFORM DTC CONFIRMATION PROCEDURE
With GST
Is 1st trip DTC detected? YES >> Proceed to EC-312, "Diagnosis Procedure".
NO >> INSPECTION END
Diagnosis Procedure
1.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY
Is the inspection result normal? YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
Is the inspection result normal? YES >> Perform the trouble diagnosis for power supply circuit.
NO >> Repair or replace error-detected parts.
3.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE GROUND CIRCUIT
Is the inspection result normal? YES >> GO TO 4.
NO >> Repair or replace error-detected parts.
4.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
Water should not exist.
Is the inspection result normal? YES >> GO TO 5.
NO >> Replace EVAP control system pressure sensor. Refer to FL-22, "Removal and Installation".
5.CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Check the EVAP control system pressure sensor. Refer to EC-315, "Component Inspection".
Is the inspection result normal? YES-1 >> With CONSULT: GO TO 6.
YES-2 >> Without CONSULT: GO TO 7.
NO >> Replace EVAP control system pressure sensor. Refer to FL-22, "Removal and Installation".
6.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT
Is the inspection result normal?
YES >> GO TO 8.
NO >> GO TO 7.
7.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Check the EVAP canister purge volume control solenoid valve. Refer to EC-315, "Component Inspection".
Is the inspection result normal? YES >> GO TO 8.
NO >> Replace EVAP canister purge volume control solenoid valve. Refer to EC-14, "Component Parts Location".
8.CHECK RUBBER TUBE FOR CLOGGING
Is the inspection result normal? YES >> GO TO 9.
NO >> Clean the rubber tube using an air blower.
9.CHECK EVAP CANISTER VENT CONTROL VALVE
Check the EVAP canister vent control valve. Refer to EC-321, "Component Inspection".
Is the inspection result normal? YES >> GO TO 10.
NO >> Replace EVAP canister vent control valve. Refer to FL-21, "Removal and Installation".
10.CHECK IF EVAP CANISTER IS SATURATED WITH WATER
Does water drain from the EVAP canister? YES >> GO TO 11.
NO >> GO TO 13.
11.CHECK EVAP CANISTER
Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor attached.
The weight should be less than 2.1 kg (4.6 lb).
Is the inspection result normal? YES >> GO TO 13.
NO >> GO TO 12.
12.DETECT MALFUNCTIONING PART
Check the following.
>> Repair hose or replace EVAP canister. Refer to FL-19, "Removal and Installation".
13.CHECK INTERMITTENT INCIDENT
Refer to GI-41, "Intermittent Incident".
>> INSPECTION END
Component Inspection
1.CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT
Without CONSULT
Is the inspection result normal? YES >> INSPECTION END
NO >> Replace EVAP canister purge volume control solenoid valve. Refer to EC-14, "Component Parts Location".
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