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

Quick Answer

The P0445 diagnostic trouble code (DTC) for Nissan vehicles indicates a malfunction in the EVAP (Evaporative Emission Control) system, specifically related to the Canister Purge Volume Control Solenoid Valve circuit being shorted. Common causes include Faulty Canister Purge Volume Control Solenoid Valve, Short circuit in the wiring harness connected to the solenoid valve, Corrosion or damage to the 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 Nissan indicates EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted.
Common causes
Common causes include Faulty Canister Purge Volume Control Solenoid Valve, Short circuit in the wiring harness connected to the solenoid valve, Corrosion or damage to the 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P0445 Nissan Description

The P0445 diagnostic trouble code (DTC) for Nissan vehicles indicates a malfunction in the EVAP (Evaporative Emission Control) system, specifically related to the Canister Purge Volume Control Solenoid Valve circuit being shorted. The EVAP system is responsible for capturing and storing fuel vapor emissions from the fuel tank to prevent them from escaping into the atmosphere. The Canister Purge Volume Control Solenoid Valve plays a crucial role in controlling the flow of fuel vapor from the charcoal canister to the engine intake manifold for combustion.

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

Common Causes of P0445 Nissan

  1. Faulty Canister Purge Volume Control Solenoid Valve.
  2. Short circuit in the wiring harness connected to the solenoid valve.
  3. Corrosion or damage to the electrical connectors.
  4. Issues with the EVAP system pressure sensor.
  5. Vacuum leaks in the EVAP system components.

Symptoms of P0445 Nissan

  1. Check Engine Light illuminated on the dashboard.
  2. Rough idling or stalling of the engine.
  3. Decreased fuel efficiency.
  4. Strong fuel odor near the vehicle.
  5. Difficulty starting the engine.

How to Fix P0445 Nissan

  1. Diagnose the EVAP system using an OBD-II scanner to confirm the P0445 code.
  2. Inspect the Canister Purge Volume Control Solenoid Valve for any visible damage or malfunction.
  3. Check the wiring harness and connectors for any signs of corrosion, damage, or short circuits.
  4. Test the EVAP system pressure sensor to ensure proper functioning.
  5. Replace the faulty Canister Purge Volume Control Solenoid Valve if necessary and clear the DTC codes.

Cost to Fix P0445 Nissan

The typical repair costs for addressing a P0445 code on a Nissan vehicle can vary depending on the specific components that need to be replaced or repaired. On average, the parts cost for a new Canister Purge Volume Control Solenoid Valve ranges from $50 to $150, while the labor cost can be around $100 to $200. Therefore, the total repair cost can be estimated to be between $150 and $350. It's important to note that these are rough estimates, and actual costs may vary based on the location, vehicle make and model, and labor rates at the auto repair shop. It's advisable to consult with a certified mechanic or dealership for a more accurate cost estimate.

What does this mean?

Tech Notes for P0445 Nissan

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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Information for Specific Nissan Models

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.

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