AutoCodes – Nissan – P0445 2011 Nissan Altima Sedan

P0445 2011 Nissan Altima Sedan 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 2011 Nissan Altima Sedan 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 4,335

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 2011 Nissan Altima Sedan 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 2011 Nissan Altima Sedan - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted - AutoCodes.com — P0445 2011 Nissan Altima Sedan Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

What does this mean?

What are the Possible Causes of the DTC P0445 2011 Nissan Altima Sedan?

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 2011 Nissan Altima Sedan?

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 2011 Nissan Altima Sedan 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 2011 Nissan Altima Sedan code?

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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 2011 Nissan Altima Sedan Code

1. What does the OBDII code P0445 mean for a 2011 Nissan Altima Sedan?

The OBDII code P0445 indicates a problem with the EVAP canister purge volume control solenoid valve circuit being shorted in the vehicle's emissions control system.

2. What are common symptoms of the P0445 code in a 2011 Nissan Altima Sedan?

Common symptoms of the P0445 code may include issues with the vehicle's fuel economy, rough idling, stalling, or difficulty starting the engine.

3. What are possible causes of the P0445 code in a 2011 Nissan Altima Sedan?

Possible causes of the P0445 code include a faulty EVAP canister purge volume control solenoid valve, damaged wiring or connectors in the circuit, or a defective PCM (Powertrain Control Module).

4. How can I diagnose the P0445 code in my 2011 Nissan Altima Sedan?

Diagnosing the P0445 code may involve visually inspecting the solenoid valve and its wiring, checking for proper voltage and continuity, and using a scan tool to analyze the system for any faults.

5. Can I continue to drive my 2011 Nissan Altima Sedan with the P0445 code present?

While the vehicle may still be operable with the P0445 code, it is recommended to address the issue promptly to prevent any potential damage to the emissions control system and ensure optimal performance.

6. How can I repair the P0445 code in my 2011 Nissan Altima Sedan?

Repairing the P0445 code may involve replacing the faulty EVAP canister purge volume control solenoid valve, repairing any damaged wiring or connectors, or resetting the PCM after addressing the issue.

7. Are there any DIY tips for addressing the P0445 code in a 2011 Nissan Altima Sedan?

DIY enthusiasts can start by checking the solenoid valve and its connections for any visible damage, ensuring they are securely connected, and clearing the code with a scan tool to see if it returns.

8. What are the potential consequences of ignoring the P0445 code in a 2011 Nissan Altima Sedan?

Ignoring the P0445 code can lead to decreased fuel efficiency, increased emissions, and potential long-term damage to the vehicle's emissions control system, resulting in more costly repairs.

9. Is the P0445 code a common issue in 2011 Nissan Altima Sedans?

While the P0445 code may not be extremely common in 2011 Nissan Altima Sedans, it is a known issue related to the EVAP system that can occur due to various factors like wear and tear or electrical faults.

10. Can weather or environmental factors trigger the P0445 code in a 2011 Nissan Altima Sedan?

Extreme weather conditions, such as temperature fluctuations or exposure to moisture, can sometimes contribute to triggering the P0445 code by affecting the integrity of the EVAP system components.