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P0445 2005 Infiniti G35 Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Quick Answer

The P0445 diagnostic trouble code (DTC) indicates that there is a short circuit in the EVAP (Evaporative Emission Control) system, specifically in the Canister Purge Volume Control Solenoid Valve circuit. Common causes include Faulty Canister Purge Volume Control Solenoid Valve, Short circuit in the wiring harness, 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 2005 Infiniti G35 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, 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code P0445 2005 Infiniti G35 Description

The P0445 diagnostic trouble code (DTC) indicates that there is a short circuit in the EVAP (Evaporative Emission Control) system, specifically in the Canister Purge Volume Control Solenoid Valve circuit. The EVAP system is responsible for capturing and storing fuel vapor that would otherwise be released into the atmosphere, and then recycling it back into the engine for combustion. The Canister Purge Volume Control Solenoid Valve is a crucial component that controls the flow of fuel vapor from the charcoal canister to the engine.

OBDII Code P0445 2005 Infiniti G35 - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted
P0445 2005 Infiniti G35 Code - EVAP Canister Purge Volume Control Solenoid Valve Circuit Shorted

Common Causes of P0445 2005 Infiniti G35

  1. Faulty Canister Purge Volume Control Solenoid Valve
  2. Short circuit in the wiring harness
  3. Corrosion or damage to electrical connectors
  4. Issues with the EVAP system pressure sensor
  5. ECM (Engine Control Module) failure

Symptoms of P0445 2005 Infiniti G35

  1. Check Engine Light illuminated
  2. Poor fuel economy
  3. Rough idling or stalling
  4. Difficulty starting the engine

How to Fix P0445 2005 Infiniti G35

  1. Begin by visually inspecting the wiring harness and connectors for any signs of damage or corrosion.
  2. Test the Canister Purge Volume Control Solenoid Valve with a multimeter to determine if it is functioning correctly.
  3. Check the EVAP system pressure sensor to ensure it is operating within specifications.
  4. If the solenoid valve is faulty, replace it with a new one and clear the DTC.
  5. Reset the Check Engine Light using an OBD-II scanner and verify that the code does not return during a test drive.

Cost to Fix P0445 2005 Infiniti G35

The cost of repairing a P0445 code on a 2005 Infiniti G35 can vary depending on the specific cause of the issue and the labor rates at the repair facility. On average, replacing the Canister Purge Volume Control Solenoid Valve can cost between $100 and $200 for the part alone. Labor costs can range from $100 to $300, bringing the total repair bill to approximately $200 to $500. It's important to note that prices may differ based on location, the availability of parts, and the expertise of the technicians. It's advisable to obtain quotes from multiple auto repair shops to find the best deal.

What does this mean?

Tech Notes for P0445 2005 Infiniti G35

It's a very common problem with Infiniti 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 2005 Infiniti G35 Code

1. What does the OBDII code P0445 mean for a 2005 Infiniti G35?

P0445 indicates a short circuit in the EVAP Canister Purge Volume Control Solenoid Valve, which is part of the vehicle’s evaporative emissions control system.

2. What are the symptoms of code P0445 on a 2005 Infiniti G35?

Common symptoms include the Check Engine Light turning on, poor fuel efficiency, a noticeable fuel odor, and, in rare cases, difficulty starting the vehicle.

3. What causes the P0445 code on a 2005 Infiniti G35?

Typical causes include a shorted or damaged purge solenoid valve, faulty wiring or connectors in the EVAP system, or a malfunctioning ECM.

4. How do I fix the P0445 code on my 2005 Infiniti G35?

Repairs may involve replacing the purge volume control solenoid, repairing or replacing damaged wiring, or cleaning corroded electrical connectors.

5. Can I drive my 2005 Infiniti G35 with a P0445 code?

While the car may still be drivable, it’s not recommended to ignore this code as it can lead to increased emissions and potentially damage other components over time.

6. How do I test the EVAP purge solenoid valve for a P0445 code?

You can test the solenoid valve using a multimeter to check for proper resistance or apply voltage directly to see if the valve opens and closes. Consult the vehicle’s service manual for specifications.

7. Will a faulty gas cap cause the P0445 code on a 2005 Infiniti G35?

No, a faulty gas cap typically causes codes like P0440 or P0456. P0445 specifically refers to an electrical issue in the purge solenoid circuit.

8. How much does it cost to fix the P0445 code on a 2005 Infiniti G35?

Repair costs typically range from $100 to $300, depending on whether the issue is with the purge solenoid valve or related wiring.

9. Where is the EVAP Canister Purge Volume Control Solenoid Valve located on a 2005 Infiniti G35?

The solenoid valve is usually located near the engine, mounted on or near the intake manifold.

10. Can a P0445 code cause my 2005 Infiniti G35 to fail an emissions test?

Yes, a P0445 code will likely cause the vehicle to fail an emissions test due to the malfunction in the EVAP system.

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