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P0445 Powertrain

Evaporative Emission System Purge Control Valve Circuit Shorted

The ECU detected a short in the EVAP purge solenoid control circuit. With the valve permanently energized or shorted, the system can either over-purge causing rich running, or stay closed.

Affected components

  • Evap purge valve
  • Purge valve wiring

Common causes

  • High likelihood: Purge valve circuit shorted
  • Medium likelihood: Wiring or connector fault

Possible symptoms

  • Check engine light on
  • Possible smell of fuel near tank or engine bay
  • Failed emissions inspection
  • Loose-cap warning may appear

Diagnostic notes

  • The malfunction indicator lamp may illuminate
  • This code can affect emissions

Sources

Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.

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