P0446

F : P0446. Canister Close Valve Stuck Closed.

F1 : CHECK FOR FLOW THROUGH SYSTEM.

NOTE: Depending on the severity of the blockage, it is possible that some difficulty has been experienced during refuelling.

1. Disconnect the vapor line from EVAP/purge valve inlet port and apply low pressure.
2. Check for free flow of air through the following, paying attention to kinked or flattened pipes.
- Filter.
- Interconnecting pipe. (filter to CCV)
- CCV.
- Interconnecting pipe. CCV to carbon canister.
- Carbon canister.
- Interconnecting pipe, carbon canister to fuel tank.
- Fuel tank vapour port.

Is there a restriction?

Yes
RECTIFY as necessary. CLEAR the DTC. Carry out a full Evap system monitor drive cycle, recheck DTCs. For additional information, see 'diagnostic drive cycles'. Diagnostic Drive Cycles

No
CLEAR the DTC. Carry out a full Evap system monitor drive cycle, recheck DTCs. For additional information, see 'diagnostic drive cycles'. Diagnostic Drive Cycles