Engine-Codes.com
Engine-Codes – Nissan – P0445 2003 Nissan Altima Sedan

P0445 2003 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Quick Answer

The P0445 code for a 2003 Nissan Altima Sedan indicates a problem with the EVAP (Evaporative Emission Control) system, specifically with the Canister Purge Volume Control Solenoid Valve circuit being shorted. Common causes include Faulty Canister Purge Volume Control Solenoid Valve, Short circuit in the wiring of the solenoid valve, Corrosion or damage to the electrical connectors. 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
P0445 2003 Nissan Altima Sedan indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted.
Common causes
Common causes include Faulty Canister Purge Volume Control Solenoid Valve, Short circuit in the wiring of the solenoid valve, Corrosion or damage to the electrical connectors.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code P0445 2003 Nissan Altima Sedan Description

The P0445 code for a 2003 Nissan Altima Sedan indicates a problem with the EVAP (Evaporative Emission Control) system, specifically with the Canister Purge Volume Control Solenoid Valve circuit being shorted. The EVAP system is responsible for capturing and storing fuel vapors to prevent them from escaping into the atmosphere. The Canister Purge Volume Control Solenoid Valve is a crucial component that controls the flow of vapors from the charcoal canister to the engine intake for combustion.

OBDII Code P0445 2003 Nissan Altima Sedan - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted
P0445 2003 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Common Causes of P0445 2003 Nissan Altima Sedan

  1. Faulty Canister Purge Volume Control Solenoid Valve
  2. Short circuit in the wiring of the solenoid valve
  3. Corrosion or damage to the electrical connectors
  4. Vacuum leaks in the EVAP system
  5. Issues with the PCM (Powertrain Control Module)

Symptoms of P0445 2003 Nissan Altima Sedan

  1. Check engine light illuminated on the dashboard
  2. Decreased fuel efficiency
  3. Strong fuel odor
  4. Difficulty starting the vehicle
  5. Rough idle or stalling

How to Fix P0445 2003 Nissan Altima Sedan

  1. Diagnose the issue by using a scan tool to verify the P0445 code and inspect the EVAP system components.
  2. Inspect the Canister Purge Volume Control Solenoid Valve and its wiring for any visible damage or corrosion.
  3. Test the solenoid valve for proper operation using a multimeter to check for continuity and resistance.
  4. Replace the faulty solenoid valve if necessary and ensure all connections are secure.
  5. Clear the error codes and perform a test drive to verify that the issue has been resolved.

Cost to Fix P0445 2003 Nissan Altima Sedan

The typical repair costs for addressing a P0445 code on a 2003 Nissan Altima Sedan can range from $100 to $300, depending on the specific cause of the issue and the cost of the replacement parts. This estimate includes the cost of the Canister Purge Volume Control Solenoid Valve, labor charges for diagnosis and repair, as well as any additional components that may need to be replaced. It's important to note that labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more accurate estimate.

What does this mean?

Tech Notes for P0445 2003 Nissan Altima Sedan

It's a very common problem with Nissan vehicles. If the harness is not damage it's very likely that the problem is the canister purge volume control solenoid valve.

When is the Code Detected?

An excessively high voltage signal is sent to Engine Control Module (ECM) through the valve

Need more information about the P0445 2003 Nissan Altima Sedan code?

Need more information on how to fix the P0445 2003 Nissan Altima Sedan code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0445 2003 Nissan Altima Sedan code diagnosed by a professional: Find a repair shop in your area

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 P0445 2003 Nissan Altima Sedan Code

1. What does the OBDII code P0445 mean on a 2003 Nissan Altima?

P0445 indicates that the EVAP (Evaporative Emission Control System) Canister Purge Volume Control Solenoid Valve Circuit has a short, causing it not to function properly.

2. What are the symptoms of the P0445 code in a 2003 Nissan Altima?

Common symptoms include the Check Engine Light turning on, increased fuel odor, reduced fuel efficiency, and potential difficulty starting the engine.

3. What causes the P0445 code on a 2003 Nissan Altima?

Potential causes include a shorted or damaged EVAP purge solenoid, faulty wiring or connectors in the circuit, or a defective Engine Control Module (ECM).

4. Can I drive my 2003 Nissan Altima with the P0445 code?

While the car may still run, it is not recommended to drive for extended periods, as it can lead to increased emissions and potential long-term damage to the EVAP system.

5. How do I diagnose the P0445 code on a 2003 Nissan Altima?

Start by inspecting the EVAP purge solenoid, wiring, and connectors for damage or corrosion. Use a multimeter to check for continuity and test the solenoid's function.

6. How is the P0445 code typically repaired on a 2003 Nissan Altima?

Repairs may include replacing the EVAP purge solenoid, repairing or replacing damaged wiring, cleaning corroded connectors, or, in rare cases, reprogramming the ECM.

7. How much does it cost to fix the P0445 code on a 2003 Nissan Altima?

Replacing the EVAP purge solenoid typically costs $100–$300, including parts and labor. Wiring repairs or other issues may vary in cost depending on the extent of the damage.

8. Can a loose gas cap cause the P0445 code on a 2003 Nissan Altima?

No, a loose gas cap usually triggers a different EVAP-related code, such as P0455 or P0442. P0445 specifically relates to a short in the purge solenoid circuit.

9. What tools are needed to fix the P0445 code on a 2003 Nissan Altima?

You'll need an OBDII scanner, multimeter, and basic hand tools like pliers and screwdrivers to inspect and repair the EVAP system components.

10. Is the P0445 code covered under warranty for a 2003 Nissan Altima?

If the vehicle is still under an extended emissions warranty, repairs related to the EVAP system may be covered. Check with your dealer for details.

Discuss the causes and fixes for P0445 2003 Nissan Altima Sedan OBDII Code

Submit a New Comment

Code P0445 2003 Nissan Altima Sedan comments

No comments found for this page.