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P0445 2002 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Quick Answer

The P0445 code on a 2002 Nissan Altima Sedan indicates a problem with the EVAP (Evaporative Emission Control) system, specifically the Canister Purge Volume Control Solenoid Valve Circuit being shorted. Common causes include Faulty Canister Purge Volume Control Solenoid Valve, Short in the wiring harness or connectors, Corrosion or damage to the electrical connections. 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 2002 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 in the wiring harness or connectors, Corrosion or damage to the electrical connections.
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
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Code P0445 2002 Nissan Altima Sedan Description

The P0445 code on a 2002 Nissan Altima Sedan indicates a problem with the EVAP (Evaporative Emission Control) system, specifically the Canister Purge Volume Control Solenoid Valve Circuit being shorted. The EVAP system is responsible for capturing and storing fuel vapor emissions from the fuel tank and preventing them from escaping into the atmosphere. The Canister Purge Volume Control Solenoid Valve regulates the flow of fuel vapor from the charcoal canister to the engine intake manifold for combustion.

OBDII Code P0445 2002 Nissan Altima Sedan - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted
P0445 2002 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Common Causes of P0445 2002 Nissan Altima Sedan

  1. Faulty Canister Purge Volume Control Solenoid Valve
  2. Short in the wiring harness or connectors
  3. Corrosion or damage to the electrical connections
  4. PCM (Powertrain Control Module) software issue
  5. Evaporative Emission Control system leak

Symptoms of P0445 2002 Nissan Altima Sedan

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

How to Fix P0445 2002 Nissan Altima Sedan

  1. Diagnose the issue: Use an OBD-II scanner to retrieve the trouble code and perform a visual inspection of the EVAP system components.
  2. Test the Canister Purge Volume Control Solenoid Valve: Check the resistance of the solenoid valve and verify its operation using a multimeter.
  3. Inspect wiring and connectors: Check for any damage, corrosion, or loose connections in the wiring harness related to the solenoid valve circuit.
  4. Replace the Canister Purge Volume Control Solenoid Valve: If the valve is found to be faulty, replace it with a new one and ensure proper installation.
  5. Clear the trouble code: After completing the repair, clear the trouble code using the OBD-II scanner and test drive the vehicle to verify that the issue has been resolved.

Cost to Fix P0445 2002 Nissan Altima Sedan

The cost of repairing a P0445 code on a 2002 Nissan Altima Sedan can vary depending on the specific cause of the issue and the price of parts and labor in your area. Typically, the cost of replacing a Canister Purge Volume Control Solenoid Valve ranges from $100 to $200, with additional costs for diagnostic testing, labor, and any other required components. Overall, the total repair cost for this issue can range from $150 to $400. It's recommended to consult with a reputable auto repair shop for an accurate estimate based on your vehicle's specific needs and local pricing.

What does this mean?

Tech Notes for P0445 2002 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

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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 P0445 2002 Nissan Altima Sedan Code

1. What does the OBDII code P0445 mean on a 2002 Nissan Altima?

P0445 indicates that there is a short circuit in the EVAP Canister Purge Volume Control Solenoid Valve circuit, which is part of your vehicle's evaporative emission control system.

2. What are the common symptoms of a P0445 code?

Symptoms may include the check engine light turning on, poor fuel economy, a noticeable fuel odor, and difficulty starting the engine in some cases.

3. What causes the P0445 code to appear?

Common causes include a shorted or failed purge volume control solenoid valve, damaged wiring or connectors in the circuit, or an issue with the powertrain control module (PCM).

4. Can I drive my 2002 Nissan Altima with a P0445 code?

While the car may still be drivable, driving with a P0445 code is not recommended as it can lead to increased emissions and potential damage to the EVAP system over time.

5. How do I fix the P0445 code?

Repairs typically involve inspecting and replacing the purge volume control solenoid valve if faulty, repairing or replacing damaged wiring or connectors, and clearing the code with an OBDII scanner.

6. How do I test the purge volume control solenoid valve?

You can test the purge valve with a multimeter to check for proper resistance and functionality. Refer to your vehicle's repair manual for specific testing procedures.

7. What tools are needed to diagnose a P0445 code?

Tools may include an OBDII scanner, a multimeter, and basic hand tools for inspecting and replacing components.

8. How much does it cost to repair a P0445 code on a 2002 Nissan Altima?

The cost varies depending on the cause, but replacing the purge solenoid valve typically costs between $100 and $300, including parts and labor.

9. Can a loose gas cap cause a P0445 code?

No, a loose gas cap usually triggers a different code (like P0455 or P0456). P0445 specifically relates to the purge solenoid valve circuit.

10. Will clearing the P0445 code fix the problem?

Clearing the code will turn off the check engine light temporarily, but the underlying issue must be resolved to prevent the code from returning.

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