AutoCodes – Nissan – P0444 2012 Nissan Pathfinder

P0444 2012 Nissan Pathfinder Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

Quick Answer

This system controls flow rate of fuel vapor from the Evaporative Emission System (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: P0444 2012 Nissan Pathfinder indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Open.
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 3,038

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
Cost to Diagnose
FAQs
Comments
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Code P0444 2012 Nissan Pathfinder Description

This system controls flow rate of fuel vapor from the Evaporative Emission System (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 P0444 2012 Nissan Pathfinder - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open - AutoCodes.com — P0444 2012 Nissan Pathfinder Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Open

What does this mean?

What are the Possible Causes of the DTC P0444 2012 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 P0444 2012 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0444 2012 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.

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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 P0444 2012 Nissan Pathfinder Code

1. What does the OBDII code P0444 indicate in a 2012 Nissan Pathfinder?

Code P0444 indicates that there is an issue with the Evaporative Emission Control System (EVAP); specifically, the Canister Purge Volume Control Solenoid Valve Circuit is open, suggesting an electrical malfunction within the circuit.

2. What are common symptoms of the P0444 code in a 2012 Nissan Pathfinder?

Common symptoms include the Check Engine Light being illuminated, a possible increase in fuel consumption, and occasionally, a noticeable fuel odor due to vapors escaping from the EVAP system.

3. What might cause the P0444 code to appear in a 2012 Nissan Pathfinder?

Possible causes include a faulty purge control solenoid, damaged or loose wiring or connectors in the purge valve circuit, or a failure in the Powertrain Control Module (PCM).

4. How is the P0444 code diagnosed in a 2012 Nissan Pathfinder?

Diagnosis involves using a scan tool to confirm the existence of the P0444 code, visually inspecting the purge valve and its wiring, and testing the purge valve with a multimeter to check for proper resistance and operation.

5. What steps are involved in repairing the P0444 code in a 2012 Nissan Pathfinder?

Repair steps might include replacing the defective purge control solenoid, repairing or replacing any damaged wiring or connectors, and ensuring that all connections are secure. After repairs, it's important to clear the code and perform a road test to see if it returns.

6. Is it safe to drive a 2012 Nissan Pathfinder with the P0444 code active?

While you can typically still drive the vehicle, doing so with an active P0444 code can lead to increased emissions, possible fuel inefficiency, and over time, other components of the EVAP system might become damaged due to incorrect operation.

7. Can the P0444 code affect the fuel economy of a 2012 Nissan Pathfinder?

Yes, when the EVAP system is not functioning correctly, it can lead to less efficient fuel use, potentially increasing your fuel consumption.

8. What tools are required to diagnose and repair the P0444 code in a 2012 Nissan Pathfinder?

Repairing the P0444 code typically requires a digital multimeter for electrical testing, a scan tool to read and clear the code, and basic hand tools to access and replace components.

9. How often does the P0444 code occur in vehicles, and is it specific to Nissan Pathfinders?

The P0444 code can occur in any vehicle with an EVAP system, but its frequency can vary based on vehicle make, model, and the condition of the EVAP system. It's not specific to Nissan Pathfinders, though each model may have its unique engineering nuances.

10. What preventive measures can be taken to avoid encountering the P0444 code in a 2012 Nissan Pathfinder?

Regular maintenance of the vehicle's EVAP system, including checking and replacing hoses and solenoids as needed, can help prevent issues like those indicated by the P0444 code. Regular vehicle diagnostics and timely repairs of minor issues will also help in avoiding this and other related codes.