AutoCodes – Audi – P0413 Audi

P0413 Audi Code - Secondary Air Injection System Switching Valve 'A' Circuit Open

Quick Answer

An air pump is used on the vehicle to lower tail pipe emissions on start-up. Common causes include Faulty Air Pump inoperative, Air bypass solenoid harness is open or shorted, Air bypass solenoid circuit poor electrical connection. 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: P0413 Audi indicates Secondary Air Injection System Switching Valve 'A' Circuit Open.
Common causes: Common causes include Faulty Air Pump inoperative, Air bypass solenoid harness is open or shorted, Air bypass solenoid circuit poor electrical connection.
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 13,011

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P0413 Audi 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 P0413 Audi - Secondary Air Injection System Switching Valve 'A' Circuit Open - AutoCodes.com — P0413 Audi Code - Secondary Air Injection System Switching Valve 'A' Circuit Open

What does this mean?

What are the Possible Causes of the DTC P0413 Audi?

Faulty Air Pump inoperative
Air bypass solenoid harness is open or shorted
Air bypass solenoid circuit poor electrical connection

How to Fix the DTC P0413 Audi?

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 P0413 Audi 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 P0413 Audi Code

1. What are the common symptoms of OBDII code P0413 in an Audi related to the Secondary Air Injection System Switching Valve 'A' Circuit Open?

- Common symptoms include the illumination of the Check Engine Light (CEL), rough idling, reduced engine performance, and potential increase in emissions.

2. What are the possible causes of OBDII code P0413 in an Audi?

- The code P0413 in an Audi is typically triggered by a faulty Secondary Air Injection System Switching Valve 'A', damaged wiring or connectors, or a malfunctioning ECM (Engine Control Module).

3. How can I diagnose the cause of OBDII code P0413 in my Audi?

- Diagnosis involves checking the wiring and connectors for any damage, testing the Secondary Air Injection System Switching Valve 'A' for proper operation, and scanning the ECM for related fault codes.

4. Can I continue driving my Audi with OBDII code P0413 present?

- It is not recommended to drive your Audi with the OBDII code P0413 present, as it can lead to potential engine performance issues and increased emissions. It is best to address the issue promptly.

5. How can I repair OBDII code P0413 in my Audi?

- Repairing OBDII code P0413 may involve replacing the faulty Secondary Air Injection System Switching Valve 'A', repairing damaged wiring or connectors, or reprogramming the ECM if necessary.

6. Are there any DIY tips for fixing OBDII code P0413 in an Audi?

- DIY tips include checking for loose or damaged connections, inspecting the valve for any signs of wear or damage, and ensuring proper installation of any replacement components.

7. How much does it typically cost to repair OBDII code P0413 in an Audi at a mechanic or dealership?

- Repair costs for OBDII code P0413 can vary depending on the exact cause of the issue, but it may range from $150 to $500 for parts and labor at a mechanic or dealership.

8. Can a faulty Secondary Air Injection System Switching Valve 'A' cause any other issues in my Audi?

- Yes, a faulty Secondary Air Injection System Switching Valve 'A' can lead to decreased engine performance, increased emissions, and potential damage to other components in the emission control system.

9. Are there any preventative measures I can take to avoid OBDII code P0413 in my Audi?

- Regular maintenance, such as checking and replacing air filters as needed, can help prevent issues with the Secondary Air Injection System and reduce the likelihood of triggering OBDII code P0413.

10. Will resetting the Check Engine Light make OBDII code P0413 disappear permanently?

- Resetting the Check Engine Light may temporarily turn off the warning indicator, but if the underlying issue causing OBDII code P0413 is not addressed, the code is likely to reappear. It is important to diagnose and fix the root cause of the problem.