General Information

P0447 Evaporative Emission System-Vent Control Circuit Open

General Information

Component Location





General Description

The Evaporative Emission Control System (EVAP) prevents hydrocarbon (HC) vapors in the fuel tank from escaping into the atmosphere where they could form photochemical smog. Gasoline vapors are collected in the charcoal canister. The Purge Control Solenoid Valve (PCSV) is actuated (duty cycled) by the Powertrain Control Module (PCM) to control vapor flow from the canister to the intake manifold.

DTC Description

Checking output signals from CCV every 10 sec. under detecting condition, if signals indicating open or short to ground in the circuit are detected for more than 5 sec., PCM sets P0447. MIL (Malfunction Indication Lamp) turns on when the malfunction lasts till consecutive 2 driving cycle.

DTC Detecting Condition





Specification





Diagnostic Circuit Diagram