DTC P0446: EVAP Control System Vent Control Malfunction

NOTE: Limited information available from manufacturer.

NOTE: After each repair, clear DTCs. See CLEARING CODES/PCM RESET PROCEDURE under SELF-DIAGNOSTIC SYSTEM. Turn ignition off and then on. Read DTCs to verify repair is complete. For DLC and PCM connector terminal identification, see CONNECTOR IDENTIFICATION . For wiring diagrams, see WIRING DIAGRAMS .

Possible causes:

PCM to canister close valve open circuit, short circuit to ground or battery voltage.
Canister close valve electrical failure.