What P0446 Means on Your 2024 Honda CR-V
Code P0446 on your 2024 Honda CR-V indicates a malfunction in the EVAP system's vent control circuit. The engine control module has detected that the canister vent shut valve circuit isn't functioning properly. The 6th-generation CR-V (2023+) is available with a 1.5L turbo or hybrid powertrain, and P0446 applies to any variant with a gasoline engine and EVAP system.
Circuit Code Explained
P0446 is about the electrical circuit controlling the vent valve — not a physical vapor leak. The ECM can't properly command the canister vent shut valve. Here are the causes ranked for a new-model CR-V:
- Canister vent shut valve defect (40%) — A manufacturing defect in the valve's solenoid or mechanical components prevents proper operation when commanded.
- Wiring issue (22%) — Damage to the circuit wiring from road debris or a production routing issue.
- Connector problem (18%) — Poor pin contact, contamination, or moisture intrusion at the vent valve connector.
- ECM driver defect (10%) — A rare internal circuit defect in the ECM's vent valve output driver.
- Ground circuit fault (10%) — A poor factory ground connection for the vent valve circuit.
Hybrid Owners
If your CR-V is the hybrid, it has a gasoline EVAP system that can trigger P0446. EVAP monitors run less frequently due to intermittent engine operation.
What To Do
- Honda dealer service — This is a warranty repair. The dealer will use Honda HDS for bidirectional valve testing and circuit diagnosis at no cost.
Cost Reference (Warranty-Covered)
- Canister vent shut valve: $130–$260 installed
- Wiring repair: $100–$250
- Connector repair: $50–$140
Warranty
Your 2024 CR-V is under Honda's 3-year/36,000-mile bumper-to-bumper warranty and 5-year/60,000-mile powertrain warranty. EVAP components carry the federal emissions warranty (8 years/80,000 miles). This repair is fully covered.