AutoCodes – Ford – P1674 Ford

P1674 Ford Code - Control Module Software Corrupted

Quick Answer

The Throttle Actuator Control (TAC) system is in the Failure Mode Effects Management (FMEM) mode of forced engine shutdown. Common causes include Software incompatibility issue, Damaged Powertrain Control Module (PCM). 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: P1674 Ford indicates Control Module Software Corrupted .
Common causes: Common causes include Software incompatibility issue, Damaged Powertrain Control Module (PCM).
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 41,612

How popular is this code, among other codes? Medium

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 Sep 08, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1674 Ford Description

The Throttle Actuator Control (TAC) system is in the Failure Mode Effects Management (FMEM) mode of forced engine shutdown. Indicates an error occurred in the Powertrain Control Module (PCM). This code sets in combination with P2105.

OBDII Code P1674 Ford - Control Module Software Corrupted - AutoCodes.com — P1674 Ford Code - Control Module Software Corrupted

What does this mean?

What are the Possible Causes of the DTC P1674 Ford?

Software incompatibility issue
Damaged Powertrain Control Module (PCM)

How to Fix the DTC P1674 Ford?

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 P1674 Ford 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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Need Help with the Code?

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Information for Specific Ford Models

P1674 2006 Ford Fusion — Control Module Software Corrupted
P1674 2007 Ford Fusion — Control Module Software Corrupted
P1674 2008 Ford Fusion — Control Module Software Corrupted
P1674 2009 Ford Fusion — Control Module Software Corrupted
P1674 2010 Ford Fusion — Control Module Software Corrupted
P1674 2011 Ford Fusion — Control Module Software Corrupted
P1674 2012 Ford Fusion — Control Module Software Corrupted

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 P1674 Ford Code

1. What are the common symptoms of OBDII code P1674 Ford (Control Module Software Corrupted)?

- Common symptoms include engine stalling, rough idling, poor acceleration, and the vehicle going into "limp mode."

2. What are the possible causes of OBDII code P1674 Ford?

- The code P1674 Ford is typically caused by a corrupted control module software, electrical issues, or a faulty control module.

3. How serious is OBDII code P1674 Ford?

- OBDII code P1674 Ford is considered a serious issue as it can lead to drivability problems and potential safety hazards if not addressed promptly.

4. Can I continue driving with OBDII code P1674 Ford?

- It is not recommended to continue driving with OBDII code P1674 Ford as it can cause further damage to the vehicle and compromise safety.

5. How can I diagnose OBDII code P1674 Ford?

- Diagnosis of OBDII code P1674 Ford requires a professional OBDII scanner to read the code and further testing to determine the exact cause of the issue.

6. How is OBDII code P1674 Ford typically repaired?

- Repairing OBDII code P1674 Ford usually involves reprogramming or replacing the control module, addressing any underlying electrical issues, and clearing the code.

7. Can I reset OBDII code P1674 Ford myself?

- While you may be able to clear the code temporarily by disconnecting the battery, it is recommended to have a professional diagnose and repair the underlying issue to prevent recurrence.

8. Will OBDII code P1674 Ford cause damage to other vehicle components?

- OBDII code P1674 Ford can potentially cause damage to other vehicle components if left unresolved, so it is important to address the issue promptly.

9. Are there any preventive measures to avoid OBDII code P1674 Ford?

- Regular vehicle maintenance, including software updates and addressing electrical issues promptly, can help prevent OBDII code P1674 Ford from occurring.

10. How much does it typically cost to repair OBDII code P1674 Ford?

- The cost of repairing OBDII code P1674 Ford can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.