DTC P0446: EVAP System Vent Control - Circuit Malfunction: Condition
WARNING: This page is about a different car, the 2002 Suzuki Vitara. However, it is still accessible from the selected car via links, so may be relevant.
DTC sets when EVAP Canister Vent Valve (EVAP-CVV) output voltage is low while Engine Control Module (ECM) commands EVAP-CVV to open. MIL is illuminated when ECM detects malfunction during 2 consecutive drive cycles. Possible causes are:
- ECM malfunction.
- EVAP-CVV malfunction.
- EVAP-CVV circuit malfunction.