P0443
P0443 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Description
The EVAP canister purge volume control solenoid valve is used to control the flow rate of fuel vapor from the EVAP canister. The EVAP
canister purge volume control solenoid valve is moved by ON/OFF
pulses from the ECM. The longer the ON pulse, the greater the amount of fuel vapor that will flow through the 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.
Do you have CONSULT
YES- GO TO 2.
NO- GO TO 3.
2. PERFORM DTC CONFIRMATION PROCEDURE
With CONSULT
1.Start engine and warm it up to normal operating temperature.
2.Turn ignition switch OFF and wait at least 10 seconds.
3.Turn ignition switch ON.
4.Turn ignition switch OFF and wait at least 10 seconds.
5.Turn ignition switch ON.
6.Select "PURG VOL CN/V P1444" of "EVAPORATIVE SYSTEM" in "DTC WORK SUPPORT" mode with CONSULT.
7.Touch "START".
8.Start engine and let it idle until "TESTING" on CONSULT changes to "COMPLETED". (It will take approximately 10 seconds.)
If "TESTING" is not displayed after 5 minutes, retry from step 2.
9.Touch "SELF-DIAG RESULTS".
Which is displayed on CONSULT screen?
OK- INSPECTION END
NG- Go to "Diagnosis Procedure" .
3. PERFORM DTC CONFIRMATION PROCEDURE
With GST
1.Start engine and warm it up to normal operating temperature.
2.Turn ignition switch OFF and wait at least 10 seconds.
3.Turn ignition switch ON.
4.Turn ignition switch OFF and wait at least 10 seconds.
5.Start engine and let it idle for at least 20 seconds.
6.Check 1st trip DTC.
Is 1st trip DTC displayed?
YES- Go to "Diagnosis Procedure" .
NO- INSPECTION END
Diagnosis Procedure
1. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE POWER SUPPLY CIRCUIT
1.Turn ignition switch OFF.
2.Disconnect EVAP canister purge volume control solenoid valve harness connector.
3.Turn ignition switch ON.
4.Check the voltage between EVAP canister purge volume control solenoid valve harness connector and ground.
Is the inspection result normal?
YES- GO TO 3.
NO- GO TO 2.
2. DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors E106, M6
- Harness connectors M116, F103
- Harness for open or short between EVAP canister purge volume control solenoid valve and IPDM E/R
- Harness for open or short between EVAP canister purge volume control solenoid valve and ECM
- Repair open circuit, short to ground or short to power in harness or connectors.
3. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE OUTPUT SIGNAL CIRCUIT
FOR OPEN AND SHORT
1.Turn ignition switch OFF.
2.Disconnect ECM harness connector.
3.Check the continuity between EVAP canister purge volume control solenoid valve harness connector and
ECM harness connector.
4.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 5.
NO- GO TO 4.
4. DETECT MALFUNCTIONING PART
Check the following.
- Harness connectors F104, F105
- Harness for open or short between EVAP canister purge volume control solenoid valve and ECM
- Repair open circuit, short to ground or short to power in harness or connectors.
5. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR CONNECTOR
1.Disconnect EVAP control system pressure sensor harness connector.
2.Check connectors for water.
Water should not exist.
Is the inspection result normal?
YES- GO TO 6.
NO- Replace EVAP control system pressure sensor. Refer to "Exploded View" Exploded View.
6. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to "Component Inspection" P0451.
Is the inspection result normal?
YES-1- With CONSULT: GO TO 7.
YES-2- Without CONSULT: GO TO 8.
NO- Replace EVAP control system pressure sensor. Refer to "Exploded View" Exploded View.
7. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT
1.Turn ignition switch OFF.
2.Reconnect harness connectors disconnected.
3.Start engine.
4.Perform "PURG VOL CONT/V" in "ACTIVE TEST" mode with CONSULT. Check that engine speed varies according to the valve opening.
Does engine speed vary according to the valve opening?
YES- GO TO 9.
NO- GO TO 8.
8. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
Refer to "Component Inspection" .
Is the inspection result normal?
YES- GO TO 9.
NO- Replace EVAP canister purge volume control solenoid valve.
9. 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 10.
NO- Clean the rubber tube using an air blower.
10. CHECK EVAP CANISTER VENT CONTROL VALVE
Refer to "Component Inspection" P0447.
Is the inspection result normal?
YES- GO TO 11.
NO- Replace EVAP canister vent control valve. Refer to "Exploded View" Exploded View.
11. CHECK IF EVAP CANISTER IS SATURATED WITH WATER
1.Remove EVAP canister with EVAP canister vent control valve and EVAP control system pressure sensor attached.
2.Check if water will drain from EVAP canister (1).
Does water drain from the EVAP canister?
YES- GO TO 12.
NO- GO TO 14.
12. CHECK EVAP CANISTER
Weigh the EVAP canister with the EVAP canister vent control valve and EVAP control system pressure sensor attached.
Is the inspection result normal?
YES- GO TO 14.
NO- GO TO 13.
13. DETECT MALFUNCTIONING PART
Check the following.
- EVAP canister for damage
- EVAP hose between EVAP canister and vehicle frame for clogging or poor connection
- Repair hose or replace EVAP canister. Refer to "Removal and Installation" Removal and Installation.
14. CHECK INTERMITTENT INCIDENT
Refer to "Intermittent Incident" Intermittent Incident.
- INSPECTION END
Component Inspection
1. CHECK EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
With CONSULT
1.Turn ignition switch OFF.
2.Reconnect all harness connectors disconnected.
3.Disconnect EVAP purge hoses connected to EVAP canister purge volume control solenoid valve.
4.Turn ignition switch ON.
5.Select "PURG VOL CONT/V" in "ACTIVE TEST" mode with CONSULT.
6.Touch "Qd" and "Qu" on CONSULT screen to adjust "PURG
VOL C/V" opening and check air passage continuity of EVAP
canister purge volume control solenoid valve under the following conditions.
Without CONSULT
1.Turn ignition switch OFF.
2.Disconnect EVAP canister purge volume control solenoid valve harness connector.
3.Disconnect EVAP purge hoses connected to EVAP canister purge volume control solenoid valve.
4.Check air passage continuity of EVAP canister purge volume control solenoid valve under the following conditions.
Is the inspection result normal?
YES- INSPECTION END
NO- Replace EVAP canister purge volume control solenoid valve