AutoCodes – Subaru – P0410 Subaru

P0410 Subaru Code - Secondary Air Injection System Malfunction

Quick Answer

An air pump is used on the vehicle to lower tail pipe emissions on start-up. Common causes include Faulty Vacuum hoses damaged, Faulty Air Pump inoperative, Air bypass solenoid harness is open or shorted. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: P0410 Subaru indicates Secondary Air Injection System Malfunction.
Common causes: Common causes include Faulty Vacuum hoses damaged, Faulty Air Pump inoperative, Air bypass solenoid harness is open or shorted.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 29,939

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 18, 2019

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0410 Subaru Description

An air pump is used on the vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module (PCM) grounds the Air pump relay control circuit which energizes the Air pump. The PCM also grounds the Air combination valve vacuum control solenoid circuit, which energizes the Air vacuum control solenoid. Vacuum is then applied to both Air combination valve diaphragms which opens the shut off valves. The PCM enables both circuits simultaneously when Air system operations id desired. When the AIR system is active, then Air pump forces fresh air into the exhaust stream in order to accelerate catalyst operation. The AIR combination valves replace the conventional check valves. When the AIR system is inactive the shut off valves prevent air flow in either direction.

OBDII Code P0410 Subaru - Secondary Air Injection System Malfunction - AutoCodes.com — P0410 Subaru Code - Secondary Air Injection System Malfunction

What does this mean?

What are the Possible Causes of the DTC P0410 Subaru?

Faulty Vacuum hoses damaged
Faulty Air Pump inoperative
Air bypass solenoid harness is open or shorted
Air bypass solenoid circuit poor electrical connection
Air bypass solenoid leaking/blocked or stuck open/closed
Air diverter valve leaking/blocked or stuck open/closed

How to Fix the DTC P0410 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 P0410 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 P0410 Subaru Code

1. What does OBDII code P0410 for a Subaru indicate?

- OBDII code P0410 signifies a Secondary Air Injection System Malfunction in the vehicle.

2. What are the common symptoms of a P0410 error in a Subaru?

- Common symptoms include rough idling, hesitation during acceleration, decreased fuel efficiency, and in some cases, the Check Engine light may illuminate.

3. What are the potential causes of a P0410 error in a Subaru?

- The P0410 error in a Subaru can be caused by issues such as a faulty secondary air injection pump, broken or leaking hoses, a malfunctioning air control valve, or a damaged air injection system.

4. How can I diagnose a P0410 error in my Subaru?

- Diagnosis typically involves checking the secondary air injection system components for any signs of damage, leaks, or malfunctions using a scan tool to retrieve the specific error code.

5. What are some repair tips for addressing a P0410 error in a Subaru?

- Repairing a P0410 error may involve replacing the faulty secondary air injection pump, repairing or replacing damaged hoses, cleaning or replacing the air control valve, or fixing any other related issues in the system.

6. Can I continue driving my Subaru with a P0410 error code?

- While it may be possible to drive the vehicle with a P0410 error, it is recommended to address the issue promptly to prevent potential damage to the engine or emission control system.

7. How much does it typically cost to repair a P0410 error in a Subaru?

- The cost of repairing a P0410 error in a Subaru can vary depending on the specific cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

8. Are there any preventive measures to avoid a P0410 error in a Subaru?

- Regular maintenance, including inspecting the secondary air injection system components during routine service checks, can help prevent issues that may lead to a P0410 error.

9. Can a DIY enthusiast address a P0410 error in a Subaru?

- Depending on the root cause of the P0410 error, some DIY enthusiasts with the necessary skills and tools may be able to address certain aspects of the repair, such as replacing hoses or cleaning components.

10. How long does it typically take to repair a P0410 error in a Subaru?

- The repair time for a P0410 error in a Subaru can vary based on the specific issue and the expertise of the technician, but it may take a few hours to a full day to complete the necessary repairs.