AutoCodes – Ford – P2257 2009 Ford Fusion

P2257 2009 Ford Fusion Code - Secondary Air Injection System Control 'A' Circuit Low

Quick Answer

An Air Pump is used on the vehicle to lower tail pipe emissions on start-up. Common causes include Faulty Secondary Air System Relay, Secondary Air System Relay harness is open or shorted, Secondary Air System Relay circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P2257 2009 Ford Fusion indicates Secondary Air Injection System Control 'A' Circuit Low.
Common causes: Common causes include Faulty Secondary Air System Relay, Secondary Air System Relay harness is open or shorted, Secondary Air System Relay circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 7,676

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Jun 14, 2020

Description
Possible Causes
How To Fix
Tech Notes ▶
Cost to Diagnose
FAQs
Comments
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Code P2257 2009 Ford Fusion 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 operation is 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 P2257 2009 Ford Fusion - Secondary Air Injection System Control 'A' Circuit Low - AutoCodes.com — P2257 2009 Ford Fusion Code - Secondary Air Injection System Control 'A' Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2257 2009 Ford Fusion?

Faulty Secondary Air System Relay
Secondary Air System Relay harness is open or shorted
Secondary Air System Relay circuit poor electrical connection
Faulty Secondary Air System Pump

How to Fix the DTC P2257 2009 Ford Fusion?

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 does this mean?

Code Tech Notes

User Submitted Video

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P2257 2009 Ford Fusion 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.

Need more information about the P2257 2009 Ford Fusion code?

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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 P2257 2009 Ford Fusion Code

1. What are common symptoms of OBDII code P2257 in a 2009 Ford Fusion?

- Common symptoms include rough idling, engine misfires, decreased fuel efficiency, and the illumination of the check engine light.

2. What is the primary cause of OBDII code P2257 in a 2009 Ford Fusion?

- The primary cause is a malfunction in the Secondary Air Injection System Control 'A' Circuit, resulting in a low voltage condition.

3. How can I diagnose the issue related to OBDII code P2257 in my 2009 Ford Fusion?

- Diagnosis involves checking the electrical connections, inspecting the wiring harness for damage, and testing the Secondary Air Injection System components for proper functioning.

4. Can a faulty oxygen sensor trigger OBDII code P2257 in a 2009 Ford Fusion?

- Yes, a faulty oxygen sensor can potentially trigger this code if it affects the air-fuel mixture and causes the Secondary Air Injection System to work harder.

5. What are the possible repair options for resolving OBDII code P2257 in a 2009 Ford Fusion?

- Repair options may involve replacing a malfunctioning Secondary Air Injection System Control 'A' Circuit component, repairing damaged wiring, or resetting the code after resolving the underlying issue.

6. Is it safe to continue driving my 2009 Ford Fusion with OBDII code P2257 present?

- It is generally not recommended to continue driving with this code present, as it can lead to decreased engine performance and potential damage to other components over time.

7. Can a clogged air filter cause OBDII code P2257 to appear in a 2009 Ford Fusion?

- While a clogged air filter may not directly cause this specific code, it can contribute to overall engine inefficiency and potentially exacerbate issues related to the Secondary Air Injection System.

8. How much does it typically cost to repair OBDII code P2257 in a 2009 Ford Fusion?

- Repair costs can vary depending on the exact cause of the issue, but they may range from $200 to $500, including parts and labor.

9. Will disconnecting the battery reset OBDII code P2257 in a 2009 Ford Fusion?

- Disconnecting the battery may temporarily clear the code, but it is important to address the underlying problem to prevent it from reoccurring.

10. Can a DIY enthusiast with basic automotive knowledge repair OBDII code P2257 in a 2009 Ford Fusion?

- While some aspects of diagnosing and repairing this code can be tackled by a DIY enthusiast, it is recommended to consult a professional mechanic for a thorough assessment and proper resolution.