AutoCodes – Ford – P2257 2008 Ford Fusion

P2257 2008 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 2008 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 6,551

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 2008 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 2008 Ford Fusion - Secondary Air Injection System Control 'A' Circuit Low - AutoCodes.com — P2257 2008 Ford Fusion Code - Secondary Air Injection System Control 'A' Circuit Low

What does this mean?

What are the Possible Causes of the DTC P2257 2008 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 2008 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 2008 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.

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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 2008 Ford Fusion Code

1. What are common symptoms of OBDII code P2257 in a 2008 Ford Fusion?

- Common symptoms include poor engine performance, rough idling, and increased fuel consumption.

2. What does the OBDII code P2257 for a 2008 Ford Fusion indicate?

- This code indicates a potential issue with the Secondary Air Injection System Control 'A' Circuit being detected as low.

3. What are possible causes of the Secondary Air Injection System Control 'A' Circuit Low code in a 2008 Ford Fusion?

- Possible causes can include a faulty secondary air injection pump, damaged wiring or connectors, or a malfunctioning air injection system control module.

4. How can I diagnose the cause of OBDII code P2257 in my 2008 Ford Fusion?

- Diagnosis typically involves checking the secondary air injection system components for any visible damage, testing electrical connections, and using a scan tool to analyze live data.

5. Can a clogged air filter cause OBDII code P2257 in a 2008 Ford Fusion?

- While a clogged air filter can affect engine performance, it is unlikely to directly trigger the P2257 code. Focus on checking the secondary air injection system components first.

6. What are the repair options for fixing OBDII code P2257 in a 2008 Ford Fusion?

- Repair options may include replacing a faulty secondary air injection pump, repairing damaged wiring or connectors, or reprogramming the air injection system control module.

7. Is it safe to continue driving my 2008 Ford Fusion with the P2257 code present?

- It is not recommended to drive with the code present as it can lead to further engine damage and reduced fuel efficiency. Address the issue promptly.

8. How much does it typically cost to repair OBDII code P2257 in a 2008 Ford Fusion?

- The cost of repairs can vary depending on the exact cause of the issue, but it is advisable to budget for diagnostic fees and potential parts replacement costs.

9. Can I reset the OBDII code P2257 in my 2008 Ford Fusion by disconnecting the battery?

- While disconnecting the battery may clear the code temporarily, it is important to address the underlying issue causing the code to prevent it from reoccurring.

10. Will OBDII code P2257 cause my 2008 Ford Fusion to fail an emissions test?

- Yes, the presence of this code typically indicates a problem with the emissions control system, which can cause the vehicle to fail an emissions test.