AutoCodes – Subaru – P0445 Subaru

P0445 Subaru Code - Evaporative Emission Control System Purge Control 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 Subaru indicates Evaporative Emission Control System Purge Control 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 8,944
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 14, 2020
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Code P0445 Subaru 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 Subaru - Evaporative Emission Control System Purge Control Valve Circuit Shorted - AutoCodes.com
P0445 Subaru Code - Evaporative Emission Control System Purge Control Valve Circuit Shorted

What are the Possible Causes of the DTC P0445 Subaru?

  • 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 Subaru?

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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0445 Subaru 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.

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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 Subaru Code

What does the OBD-II code P0445 mean for a Subaru?

P0445 indicates a short circuit issue in the purge control valve circuit, which is part of the vehicle's evaporative emission control system.

What are the common symptoms of P0445 in a Subaru?

Symptoms may include the check engine light turning on, reduced fuel efficiency, and a noticeable gasoline smell near the vehicle.

What causes the P0445 code in a Subaru?

Common causes include a shorted or faulty purge control valve, damaged wiring or connectors, or a malfunctioning ECU.

How can I troubleshoot the P0445 code on my Subaru?

Start by inspecting the purge control valve and its wiring for damage or corrosion, then test the valve with a multimeter to check for shorts.

Can I drive my Subaru with a P0445 code?

While the vehicle may still be drivable, driving with this code can increase emissions and may lead to further damage over time.

How do I fix the P0445 code on a Subaru?

Repair options may involve replacing the purge control valve, repairing damaged wiring, or clearing the code after addressing the issue.

How much does it cost to repair a P0445 code on a Subaru?

Repair costs can range from $100 to $300, depending on whether the purge control valve or wiring needs replacement.

Will clearing the P0445 code fix the issue?

Clearing the code will remove the check engine light temporarily, but the problem will persist until the underlying issue is resolved.

What tools are needed to diagnose P0445 on a Subaru?

You may need an OBD-II scanner, a multimeter, and basic tools to inspect and test the purge control valve and wiring.

Can a P0445 code cause a failed emissions test on a Subaru?

Yes, this code can increase emissions and cause your vehicle to fail an emissions test.

Discuss the causes and fixes for P0445 Subaru OBDII Code

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