Diagnostic Trouble Code
P0449 — EVAP Emission Vent Valve/Solenoid Circuit
EVAP Emission Vent Valve/Solenoid Circuit
Definition
The EVAP vent valve/solenoid circuit has an electrical malfunction. This is the circuit-specific version of P0446.
Common Causes
- Faulty vent valve solenoid
- Open or shorted wiring
- Poor electrical connection at the vent valve
- ECM driver issue