AutoCodes – Nissan – P0445 2009 Nissan Pathfinder

P0445 2009 Nissan Pathfinder Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Quick Answer

The Evaporative Emission System (EVAP) Canister Purge Volume Control Solenoid Valve controls flow rate of fuel vapor from the EVAP canister. Common causes include Faulty Evaporative Emission (EVAP) Purge Solenoid Control, Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted, Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical 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: P0445 2009 Nissan Pathfinder indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted.
Common causes: Common causes include Faulty Evaporative Emission (EVAP) Purge Solenoid Control, Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted, Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical 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 1,985

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0445 2009 Nissan Pathfinder Description

The Evaporative Emission System (EVAP) Canister Purge Volume Control Solenoid Valve controls flow rate of fuel vapor from the EVAP canister. The opening of the vapor by-pass passage in the EVAP canister purge volume control solenoid valve changes to control the flow rate. The EVAP canister purge volume control solenoid valve repeats ON/OFF operation according to the signal sent from the Engine Control Module (ECM). The opening of the valve varies for optimum engine control. The optimum value stored in the ECM is determined by considering various engine conditions. When the engine is operating, the flow rate of fuel vapor from the EVAP canister is regulated as the air flow changes.
The EVAP canister purge volume control solenoid valve uses a ON/OFF duty to control the flow rate of fuel vapor from the EVAP canister. The EVAP canister purge volume control solenoid valve is moved by ON/OFF pulses from the ECM. The longer the ON pulse, the greater the amount of fuel vapor that will flow through the valve.

OBDII Code P0445 2009 Nissan Pathfinder - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted - AutoCodes.com — P0445 2009 Nissan Pathfinder Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

What does this mean?

What are the Possible Causes of the DTC P0445 2009 Nissan Pathfinder?

Faulty Evaporative Emission (EVAP) Purge Solenoid Control
Evaporative Emission (EVAP) Purge Solenoid Control harness is open or shorted
Evaporative Emission (EVAP) Purge Solenoid Control circuit poor electrical connection

How to Fix the DTC P0445 2009 Nissan Pathfinder?

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.

What does this mean?

Code Tech Notes

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.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0445 2009 Nissan Pathfinder 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 P0445 2009 Nissan Pathfinder code?

Need more information on how to fix the P0445 2009 Nissan Pathfinder code? Get Access to Factory Service Manuals

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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 2009 Nissan Pathfinder Code

1. What is an OBDII code P0445 on a 2009 Nissan Pathfinder?

Code P0445 indicates a problem with the EVAP canister purge volume control solenoid valve circuit, specifically that it is shorted. This is part of the vehicle's emissions control system.

2. What are common symptoms of code P0445 in a 2009 Nissan Pathfinder?

Symptoms can include a check engine light, a noticeable fuel odor, decreased fuel economy, and in some cases, the engine may run rough.

3. What causes the EVAP canister purge volume control solenoid valve circuit to short in a 2009 Nissan Pathfinder?

Common causes include a faulty purge solenoid, damaged wiring or connectors in the purge valve circuit, or a short in the electrical system connected to the solenoid.

4. How can I fix the OBDII code P0445 on my 2009 Nissan Pathfinder?

Repairing this code may involve replacing the faulty purge solenoid, repairing or replacing damaged wires or connectors, and ensuring that the solenoid circuit is properly grounded.

5. Is it safe to drive my 2009 Nissan Pathfinder with code P0445?

While you can typically still drive, it's advisable to address the issue soon to avoid potential issues like increased emissions, which can lead to failed emissions tests, or more serious engine problems over time.

6. How do I diagnose the cause of code P0445 in a 2009 Nissan Pathfinder?

Diagnosis should start with a visual inspection of the purge valve and wiring. A professional mechanic might also use a multimeter to check for shorts or breaks in the circuit and may perform tests to confirm the solenoidâ€™s operation.

7. Can code P0445 in a 2009 Nissan Pathfinder cause the car to fail an emissions test?

Yes, since this code relates to the EVAP system, which controls noxious emissions, there is a high probability that it can cause your vehicle to fail emissions testing.

8. What is the EVAP system in a 2009 Nissan Pathfinder?

The Evaporative Emission Control (EVAP) system captures fuel vapors from the fuel tank and reintroduces them into the engine to be burned off, reducing emissions from the vehicle.