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P0445 2008 Nissan Maxima Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Quick Answer

The P0445 code on a 2008 Nissan Maxima indicates a problem with the EVAP (Evaporative Emission Control System) Canister Purge Volume Control Solenoid Valve circuit being shorted. Common causes include Wiring harness issues, Faulty Canister Purge Volume Control Solenoid Valve, Corrosion or damage to 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 2008 Nissan Maxima indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted.
Common causes
Common causes include Wiring harness issues, Faulty Canister Purge Volume Control Solenoid Valve, Corrosion or damage to 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 16, 2024
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Code P0445 2008 Nissan Maxima Description

The P0445 code on a 2008 Nissan Maxima indicates a problem with the EVAP (Evaporative Emission Control System) Canister Purge Volume Control Solenoid Valve circuit being shorted. The EVAP system is designed to capture and store fuel vapors from the fuel tank to prevent them from escaping into the atmosphere. The Canister Purge Volume Control Solenoid Valve is responsible for controlling the flow of vapors from the charcoal canister to the engine intake manifold for combustion.

OBDII Code P0445 2008 Nissan Maxima - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted
P0445 2008 Nissan Maxima Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Common Causes of P0445 2008 Nissan Maxima

  1. Wiring harness issues
  2. Faulty Canister Purge Volume Control Solenoid Valve
  3. Corrosion or damage to electrical connectors
  4. Engine control module (ECM) malfunction
  5. Vacuum leaks in the EVAP system

Symptoms of P0445 2008 Nissan Maxima

  1. Check Engine Light illuminated on the dashboard
  2. Rough idling or stalling
  3. Reduced fuel efficiency
  4. Strong fuel odor
  5. Difficulty starting the vehicle

How to Fix P0445 2008 Nissan Maxima

  1. Diagnose the issue by using a scan tool to retrieve the trouble code and inspecting the EVAP system components.
  2. Check the wiring harness for any damage or corrosion and repair or replace as necessary.
  3. Test the Canister Purge Volume Control Solenoid Valve for proper operation and replace if faulty.
  4. Inspect and clean electrical connectors to ensure a secure connection.
  5. Clear the trouble code and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0445 2008 Nissan Maxima

The typical repair costs for addressing a P0445 code on a 2008 Nissan Maxima can range from $150 to $400, depending on the specific cause of the issue and the cost of parts and labor. It's important to note that diagnosis time and labor rates can vary, so it's recommended to check with local auto repair shops for a more accurate estimate.

What does this mean?

Tech Notes for P0445 2008 Nissan Maxima

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 2008 Nissan Maxima Code

1. What are common symptoms of OBDII code P0445 in a 2008 Nissan Maxima?

- Common symptoms include the Check Engine light illuminating, rough idling, decreased fuel efficiency, and difficulties starting the vehicle.

2. What does the OBDII code P0445 for a 2008 Nissan Maxima indicate?

- OBDII code P0445 indicates a malfunction in the EVAP canister purge volume control solenoid valve circuit, specifically a short circuit.

3. What are the potential causes of OBDII code P0445 in a 2008 Nissan Maxima?

- Possible causes include a faulty purge volume control solenoid valve, damaged wiring or connectors in the circuit, or a malfunctioning ECM.

4. How can I diagnose the issue causing OBDII code P0445 in my 2008 Nissan Maxima?

- You can use a scan tool to check for the specific code, visually inspect the wiring and connectors for any damage, and test the purge volume control solenoid valve for proper functionality.

5. Can I drive my 2008 Nissan Maxima with OBDII code P0445?

- It is generally safe to drive the vehicle with this code, but it is recommended to address the issue promptly to prevent further damage and ensure optimal performance.

6. Is it possible to reset the Check Engine light after resolving OBDII code P0445 in a 2008 Nissan Maxima?

- Yes, the Check Engine light can be reset using an OBDII scanner once the underlying issue causing code P0445 has been fixed and the system has been cleared.

7. How can I repair OBDII code P0445 in my 2008 Nissan Maxima?

- Repair typically involves replacing the defective purge volume control solenoid valve, repairing any damaged wiring or connectors, and clearing the code with a diagnostic tool.

8. Can a DIY enthusiast fix OBDII code P0445 in a 2008 Nissan Maxima?

- Depending on your skill level and access to tools, it is possible to address this code as a DIY project by following repair guides and being meticulous in the process.

9. What are the consequences of ignoring OBDII code P0445 in a 2008 Nissan Maxima?

- Ignoring this code can lead to decreased fuel efficiency, potential damage to other emissions components, and may cause the vehicle to fail an emissions test.

10. How much does it cost to fix OBDII code P0445 in a 2008 Nissan Maxima?

- The cost of repair can vary depending on the cause of the issue, but it typically ranges from $100 to $300, including parts and labor.

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