AutoCodes – Nissan – P0445 2012 Nissan Sentra

P0445 2012 Nissan Sentra 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 2012 Nissan Sentra 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 3,093

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 Mar 31, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0445 2012 Nissan Sentra 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 2012 Nissan Sentra - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted - AutoCodes.com — P0445 2012 Nissan Sentra Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

What does this mean?

What are the Possible Causes of the DTC P0445 2012 Nissan Sentra?

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 2012 Nissan Sentra?

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 2012 Nissan Sentra 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 2012 Nissan Sentra code?

Need more information on how to fix the P0445 2012 Nissan Sentra 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 2012 Nissan Sentra Code

What does the OBDII code P0445 mean for a 2012 Nissan Sentra?

P0445 indicates a short circuit in the EVAP canister purge volume control solenoid valve circuit, which affects the vehicle's evaporative emissions control system.

What are the common symptoms of a P0445 code?

Common symptoms include the check engine light being illuminated, rough idling, poor fuel economy, and potential failure during emissions testing.

What could cause the P0445 code to trigger?

Causes may include a faulty purge valve, wiring issues such as shorts or open circuits, damaged connectors, or problems with the Engine Control Module (ECM).

How can I diagnose a P0445 code?

To diagnose this code, check the EVAP system components, inspect the wiring and connectors for damage, test the purge valve for proper operation, and use a multimeter to check for voltage and resistance in the circuit.

What are some common repairs for the P0445 code?

Common repairs include replacing the canister purge volume control solenoid valve, repairing or replacing damaged wiring or connectors, and resetting the ECM after repairs.

Can I drive my 2012 Nissan Sentra with a P0445 code?

While it may be possible to drive the vehicle, it is advisable to address the issue promptly to prevent further damage and ensure compliance with emissions regulations.

Will clearing the code P0445 fix the problem?

Clearing the code may temporarily turn off the check engine light, but it will not fix the underlying issue that caused the code to trigger.

How can I prevent the P0445 code from occurring?

Regular maintenance of the EVAP system, including checking for leaks and ensuring all components are functioning correctly, can help prevent the P0445 code from occurring.

What is the average cost to repair a P0445 code?

The cost can vary widely depending on the specific issue, but repairs may range from $100 to $500, including parts and labor, especially if the purge valve needs to be replaced.