AutoCodes – Nissan – P0447 2004 Nissan Altima Sedan

P0447 2004 Nissan Altima Sedan Code - Evaporative Emission Control System Vent Control Circuit Open

Quick Answer

The Evaporative Emission System (EVAP) canister vent control valve is located on the EVAP canister and is used to seal the canister vent. Common causes include Faulty Canister Vent Control Valve, Canister Vent Control Valve harness is open or shorted, Canister Vent Control Valve electrical circuit poor connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means
P0447 2004 Nissan Altima Sedan indicates Evaporative Emission Control System Vent Control Circuit Open.
Common causes
Common causes include Faulty Canister Vent Control Valve, Canister Vent Control Valve harness is open or shorted, Canister Vent Control Valve electrical circuit poor connection.
Severity
Low - monitor the vehicle and repair when practical.
Can I drive?
The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.
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Code Popularity 3,707
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 23, 2020
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Code P0447 2004 Nissan Altima Sedan 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.
OBDII Code P0447 2004 Nissan Altima Sedan - Evaporative Emission Control System Vent Control Circuit Open - AutoCodes.com
P0447 2004 Nissan Altima Sedan Code - Evaporative Emission Control System Vent Control Circuit Open

What are the Possible Causes of the DTC P0447 2004 Nissan Altima Sedan?

  • Faulty Canister Vent Control Valve
  • Canister Vent Control Valve harness is open or shorted
  • Canister Vent Control Valve electrical circuit poor connection

How to Fix the DTC P0447 2004 Nissan Altima Sedan?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0447 2004 Nissan Altima Sedan code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0447 2004 Nissan Altima Sedan code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0447 2004 Nissan Altima Sedan Code

1. What does OBDII code P0447 on a 2004 Nissan Altima Sedan mean?

The code P0447 indicates a problem with the Evaporative Emission Control System Vent Control Circuit Open in your vehicle.

2. What are the common symptoms of a P0447 code on a 2004 Nissan Altima Sedan?

Common symptoms of a P0447 code may include the check engine light illuminating on the dashboard, decreased fuel efficiency, and a noticeable fuel odor.

3. What are the possible causes of a P0447 code on a 2004 Nissan Altima Sedan?

Possible causes of a P0447 code include a faulty vent control valve, damaged wiring or connectors in the vent control circuit, or a malfunctioning PCM (Powertrain Control Module).

4. How serious is a P0447 code on a 2004 Nissan Altima Sedan?

While a P0447 code may not cause immediate drivability issues, it can lead to increased emissions and potential problems with the vehicle's fuel system if left unresolved.

5. How can I diagnose a P0447 code on a 2004 Nissan Altima Sedan?

Diagnosing a P0447 code typically involves using a scan tool to retrieve the specific fault code, inspecting the vent control valve and associated wiring, and performing a smoke test to check for leaks in the evaporative emission system.

6. Can I drive my 2004 Nissan Altima Sedan with a P0447 code?

It is generally safe to drive your vehicle with a P0447 code, but it is recommended to have the issue diagnosed and repaired as soon as possible to prevent further damage to the evaporative emission control system.

7. How much does it cost to repair a P0447 code on a 2004 Nissan Altima Sedan?

The cost of repairing a P0447 code can vary depending on the exact cause of the issue. It may range from a simple fix like replacing a faulty vent control valve to more extensive repairs involving wiring or module replacements.

8. Can I fix a P0447 code on a 2004 Nissan Altima Sedan myself?

If you have experience with automotive repairs and the necessary tools, you may be able to fix a P0447 code yourself by replacing the vent control valve or addressing any wiring issues. However, it is recommended to consult a professional if you are unsure.

9. How long does it take to repair a P0447 code on a 2004 Nissan Altima Sedan?

The repair time for a P0447 code can vary depending on the specific issue and the expertise of the technician. In general, it may take anywhere from 1 to 3 hours to diagnose and fix the problem.

10. Will resetting the check engine light resolve a P0447 code on a 2004 Nissan Altima Sedan?

Resetting the check engine light may temporarily turn off the warning indicator, but it will not fix the underlying issue causing the P0447 code. It is important to diagnose and repair the problem to prevent further issues.

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