P0444 Evaporative Emission Control System Purge Control Valve Circuit Open

P0444 indicates an open circuit in the EVAP purge control valve circuit. The purge solenoid electrical path is not complete when the module expects control.

Code status

Needs verification

Not yet verified against SAE J2012_202509 / J2012DA. Treat unverified rows as a lookup aid, not repair authority.

System: Emissions
Scope: iso-sae-controlled-p0
Standard: SAE J2012 / ISO 15031-6
Source: legacy-import

Diagnostic boundary

A diagnostic trouble code reports that a monitored test failed. It does not prove one specific part is bad, and manufacturer logic can add vehicle-specific conditions.

Do not replace the charcoal canister for an open purge circuit; start with the purge solenoid and its wiring.

Useful checks before replacing parts

Check purge valve connector fit, terminal tension, power feed, control wire continuity, and harness damage near the engine.
Command the purge valve with a scan tool if available and compare command state with circuit voltage and valve response.
Inspect fuses, shared feeds, and related EVAP circuit codes that can identify a common electrical fault.

Related OBD-II codes

These nearby emissions entries can help compare wording and fault area. They may share the same verification status as the source database.