Engine-Codes.com | All About OBDII Engine Codes
Engine-Codes.com | All About OBDII Engine Codes

P0447

P0447 - Evaporative Emission Control System Vent Control Circuit Open

PDF
P0447 Comments |  Add Comment
Possible causes
- Faulty canister vent control valve
- Purge Control Valve harness is open or shorted
- Purge Control Valve electrical circuit poor connection
Help with Possible causes What does this mean?
Tech notes
Before replacing any parts, check for damage EVAP canister and for loose hoses from the vent control valve to the canister.
Help with Tech Notes What does this mean?
When is the code detected?
An improper voltage signal is sent to Engine Control Module (ECM) through Evaporative Emission System (EVAP) canister vent control valve.
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P0447 Description

The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. This solenoid (the EVAP canister vent control valve) responds to signals from the Engine Control Module (ECM). When the ECM sends an ON signal, the coil in the solenoid valve is energized.

A plunger will then move to seal the canister vent. The ability to seal the vent is necessary for the on board diagnosis of other evaporative emission control system components.This solenoid valve is used only for diagnosis, and usually remains opened. When the vent is closed, under normal purge conditions, the evaporative emission control system is depressurized and allows EVAP Control System (Small Leak) diagnosis.

P0447 Information for specific makes
Need more help?
Do you need more help with the P0447 code? ask a question to our users or search the top hand picked automotive forums for more information


(You will add more details to the question in the next step)
or
Repair Shops Around Your Area
See More...
Need parts?
Need parts to fix this code? Search hundreds of stores at the same time and compare prices


Help Engine-Codes.com
Help us improve Engine-Codes.com. Leave a comment below or tell us if the information above help you fix the code. What are symptoms is your vehicle for the P0447 code? Have you replaced any parts?
Any information is appreciated. Thanks
Engine-Codes.com Comments Powered by Disqus
Google +
Engine Light ON?

The Engine-Codes.com ELM327 WiFi Car Diagnostic connects to your Android phone, iPhone, iPad, or Windows computer from your vehicle.
Ask OBDII Question