Engine-CodesNissan – P0445 2012 Nissan Sentra

P0445 2012 Nissan Sentra Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Quick Answer

The P0445 code for a 2012 Nissan Sentra indicates a problem with the EVAP (Evaporative Emission Control) system, specifically the Canister Purge Volume Control Solenoid Valve circuit being shorted. Common causes include Faulty EVAP Canister Purge Volume Control Solenoid Valve, Short in the wiring harness connected to the solenoid valve, Corrosion or damage to electrical connectors. 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 EVAP Canister Purge Volume Control Solenoid Valve, Short in the wiring harness connected to the solenoid valve, Corrosion or damage to electrical connectors.
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.
Table of contents Created and updated by William Orellana on Sep 13, 2024
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Code P0445 2012 Nissan Sentra Description

The P0445 code for a 2012 Nissan Sentra indicates a problem with the EVAP (Evaporative Emission Control) system, specifically the Canister Purge Volume Control Solenoid Valve circuit being shorted. The EVAP system is designed to capture and store fuel vapors from the fuel tank to prevent them from being released into the atmosphere. The Canister Purge Volume Control Solenoid Valve is responsible for controlling the flow of fuel vapors from the charcoal canister to the engine intake manifold for combustion.

OBDII Code P0445 2012 Nissan Sentra - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted
P0445 2012 Nissan Sentra Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Common Causes of P0445 2012 Nissan Sentra

  1. Faulty EVAP Canister Purge Volume Control Solenoid Valve
  2. Short in the wiring harness connected to the solenoid valve
  3. Corrosion or damage to electrical connectors
  4. Issues with the PCM (Powertrain Control Module)
  5. Vacuum leaks in the EVAP system

Symptoms of P0445 2012 Nissan Sentra

  1. Check engine light illuminated on the dashboard
  2. Rough engine idle
  3. Hesitation or stalling during acceleration
  4. Increased fuel consumption
  5. Failed emissions test

How to Fix P0445 2012 Nissan Sentra

  1. Begin by diagnosing the specific cause of the shorted circuit, which may involve testing the solenoid valve, inspecting the wiring harness, and checking for any corrosion or damage to connectors.
  2. Replace the EVAP Canister Purge Volume Control Solenoid Valve if it is found to be faulty.
  3. Repair any damaged wiring or connectors in the circuit.
  4. Clear the diagnostic trouble codes from the vehicle's memory using a scan tool.
  5. Perform a test drive to ensure the issue has been resolved and the check engine light does not reappear.

Cost to Fix P0445 2012 Nissan Sentra

The cost of repairing a P0445 code on a 2012 Nissan Sentra can vary depending on the specific cause of the issue and the cost of parts and labor in your area. On average, the cost of replacing the EVAP Canister Purge Volume Control Solenoid Valve can range from $100 to $200, while labor costs can range from $80 to $150 per hour. Overall, the total repair cost for this issue may fall between $200 and $400. It is recommended to obtain quotes from local auto repair shops to get a more accurate estimate based on your location and vehicle specifics.

Tech Notes for P0445 2012 Nissan Sentra

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 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.

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