P0444

DTC P0444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE

Description




COMPONENT DESCRIPTION
The EVAP canister purge volume control solenoid valve uses a ON/OFF duty 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.

Consult-II Reference Value In Data Monitor Mode:

On Board Diagnosis Logic
Malfunction is detected when an excessively low (P0444) or high (P0445) voltage signal is sent to ECM through the valve.

Possible Cause
- Harness or connectors
(The valve circuit is open or shorted.)
- EVAP canister purge volume control solenoid valve

DTC Confirmation Procedure

NOTE: 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 11V at idle.

WITH CONSULT-II
1. Turn ignition switch "ON".




2. Select "DATA MONITOR" mode with CONSULT-II.
3. Start engine and let it idle for at least 13 seconds.
4. If 1st trip DTC is detected, go to "Diagnostic Procedure"

WITH GST
Follow the procedure "WITH CONSULT-II" above.

EC-PGC/V-01:

Wiring Diagram

Diagnostic Procedure Step 1 - 3:

Diagnostic Procedure Step 4 - 7:

Diagnostic Procedure

Component Inspection

EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE







With CONSULT-II
Check air passage continuity of EVAP canister purge volume control solenoid valve under the given conditions.







Without CONSULT-II
Check air passage continuity of EVAP canister purge volume control solenoid valve under the given conditions.