Decoding P0446 on Your 2022 Honda CR-V
A P0446 code on your 2022 Honda CR-V indicates a malfunction in the EVAP vent control circuit. The engine control module detected that the canister vent shut valve circuit isn't operating correctly. Your 2022 CR-V is the final year of the 5th generation, available with a 1.5L turbo or hybrid powertrain. Both share similar EVAP architecture, and P0446 is a circuit malfunction code targeting the vent valve system.
Ranked Causes
- Canister vent shut valve failure (40%) — The valve's solenoid or plunger mechanism fails, preventing proper response to ECM commands.
- Connector corrosion (22%) — After a few years of road exposure, moisture corrodes the vent valve connector pins.
- Wiring harness damage (18%) — Road debris, heat, or rodent activity damages the circuit wiring.
- Ground circuit issue (12%) — A corroded or loose ground creates intermittent operation.
- ECM driver fault (8%) — Rare internal ECM output circuit failure.
Diagnostic Steps
- Honda HDS test — Bidirectional vent valve control with circuit monitoring.
- Connector check — Inspect for corrosion and moisture. Clean with contact cleaner.
- Valve resistance — Measure solenoid coil (20-40 ohms normal).
- Wiring inspection — Trace harness for damage.
Repair Costs
- Canister vent shut valve: $120–$245 installed
- Connector repair: $50–$135
- Wiring repair: $95–$225
- Diagnostic fee: $80–$140
Warranty
Your 2022 CR-V may still be within Honda's 3-year/36,000-mile basic warranty — check your purchase date. EVAP components are covered by the federal emissions warranty (8 years/80,000 miles). Contact your Honda dealer to confirm coverage.