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Engine-Codes – Nissan – P0445 2007 Nissan Maxima

P0445 2007 Nissan Maxima Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Quick Answer

The P0445 diagnostic trouble code (DTC) for a 2007 Nissan Maxima indicates a problem with the EVAP (Evaporative Emission Control System) Canister Purge Volume Control Solenoid Valve circuit being shorted. Common causes include Damaged wiring or connectors in the Canister Purge Volume Control Solenoid Valve circuit, Faulty Canister Purge Volume Control Solenoid Valve, Corrosion or poor connections in the EVAP system. 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 2007 Nissan Maxima indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted.
Common causes
Common causes include Damaged wiring or connectors in the Canister Purge Volume Control Solenoid Valve circuit, Faulty Canister Purge Volume Control Solenoid Valve, Corrosion or poor connections in the EVAP system.
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 2007 Nissan Maxima Description

The P0445 diagnostic trouble code (DTC) for a 2007 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 responsible for capturing and storing fuel vapors to prevent 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 2007 Nissan Maxima - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted
P0445 2007 Nissan Maxima Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Common Causes of P0445 2007 Nissan Maxima

  1. Damaged wiring or connectors in the Canister Purge Volume Control Solenoid Valve circuit.
  2. Faulty Canister Purge Volume Control Solenoid Valve.
  3. Corrosion or poor connections in the EVAP system.
  4. Issues with the Engine Control Module (ECM).

Symptoms of P0445 2007 Nissan Maxima

  1. Check Engine Light illuminated on the dashboard.
  2. Rough idling or engine stalling.
  3. Increased fuel consumption.
  4. Failed emissions test.
  5. Fuel odor near the vehicle.

How to Fix P0445 2007 Nissan Maxima

  1. Begin by diagnosing the specific cause of the short circuit using a scan tool to retrieve the DTC and inspecting the wiring, connectors, and solenoid valve.
  2. Replace any damaged wiring or connectors in the Canister Purge Volume Control Solenoid Valve circuit.
  3. Test the Canister Purge Volume Control Solenoid Valve for proper operation and replace it if necessary.
  4. Clear the DTC from the ECM memory and perform a test drive to ensure the issue has been resolved.
  5. If the problem persists, further diagnostics may be required to identify any underlying issues with the ECM or other components.

Cost to Fix P0445 2007 Nissan Maxima

The typical repair costs for addressing a P0445 code on a 2007 Nissan Maxima can range from $150 to $400, including parts and labor. However, the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. It's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

What does this mean?

Tech Notes for P0445 2007 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 2007 Nissan Maxima Code

1. What are the common symptoms of OBDII code P0445 on a 2007 Nissan Maxima?

- Common symptoms include the Check Engine light coming on, rough idling, decreased fuel efficiency, and potential difficulty starting the vehicle.

2. What does the OBDII code P0445 on a 2007 Nissan Maxima indicate?

- This code indicates a problem with the EVAP Canister Purge Volume Control Solenoid Valve circuit being shorted.

3. What are the possible causes of OBDII code P0445 on a 2007 Nissan Maxima?

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

4. How can I diagnose the OBDII code P0445 on my 2007 Nissan Maxima?

- Diagnosis typically involves checking the wiring and connectors for damage, testing the purge volume control solenoid valve for proper operation, and using a scan tool to read the code and monitor system operation.

5. Can I continue driving my 2007 Nissan Maxima with OBDII code P0445?

- It is not recommended to drive the vehicle with this code present, as it can lead to increased emissions, potential damage to the catalytic converter, and poor performance.

6. How can I repair OBDII code P0445 on my 2007 Nissan Maxima?

- Repair may involve replacing the purge volume control solenoid valve, repairing damaged wiring or connectors, or reprogramming the ECM if necessary.

7. Is it possible to reset the Check Engine light after fixing OBDII code P0445 on a 2007 Nissan Maxima?

- Yes, the Check Engine light can be reset using an OBDII scan tool after the issue has been properly repaired.

8. How much does it typically cost to repair OBDII code P0445 on a 2007 Nissan Maxima?

- The cost of repair can vary depending on the specific cause of the issue, but it may range from $100 to $300 for parts and labor.

9. Are there any preventative maintenance tips to avoid OBDII code P0445 on a 2007 Nissan Maxima?

- Regularly inspecting and maintaining the EVAP system components, such as the purge volume control solenoid valve, can help prevent issues that lead to this code.

10. Can a DIY enthusiast fix OBDII code P0445 on a 2007 Nissan Maxima?

- While some skilled DIY enthusiasts may be able to diagnose and repair this code, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair to avoid further issues.

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