AutoCodes – Ford – U1451 Ford

U1451 Ford Code - Invalid Or Missing Data For Anti-Theft Module Vehicle Immobilized

Quick Answer

The Diagnostic Trouble Code (DTC) will set when the Powertrain Control Module (PCM) received a signal on the Standard Corporate Protocol (SCP) bus that indicated Invalid or Missing Data for the Anti-Theft Module. Common causes include Faulty Anti-Theft Module, Anti-Theft Module harness is open or shorted, Anti-Theft Module 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
U1451 Ford indicates Invalid Or Missing Data For Anti-Theft Module Vehicle Immobilized.
Common causes
Common causes include Faulty Anti-Theft Module, Anti-Theft Module harness is open or shorted, Anti-Theft Module 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 2,029
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on May 24, 2020
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Code U1451 Ford Description

The Diagnostic Trouble Code (DTC) will set when the Powertrain Control Module (PCM) received a signal on the Standard Corporate Protocol (SCP) bus that indicated Invalid or Missing Data for the Anti-Theft Module.
OBDII Code U1451 Ford - Invalid Or Missing Data For Anti-Theft Module Vehicle Immobilized - AutoCodes.com
U1451 Ford Code - Invalid Or Missing Data For Anti-Theft Module Vehicle Immobilized

What are the Possible Causes of the DTC U1451 Ford?

  • Faulty Anti-Theft Module
  • Anti-Theft Module harness is open or shorted
  • Anti-Theft Module circuit poor electrical connection
  • Faulty Powertrain Control Module (PCM)

How to Fix the DTC U1451 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 U1451 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.

Need more information about the U1451 Ford code?

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Need Help with the 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 U1451 Ford Code

What are the common symptoms of OBDII code U1451 in a Ford vehicle?

Common symptoms include the vehicle being immobilized, the engine not starting, and the anti-theft system being activated.

What are the possible causes of OBDII code U1451 in a Ford vehicle?

Possible causes may include a faulty anti-theft module, issues with the wiring or connections related to the anti-theft system, or a communication error between the module and other vehicle systems.

How can I diagnose OBDII code U1451 in my Ford vehicle?

Diagnosis typically involves using a diagnostic scanner to retrieve the specific error code, checking the anti-theft module for any visible damage, and inspecting the wiring and connections for any issues.

What are some repair tips for fixing OBDII code U1451 in a Ford vehicle?

Repair tips may include resetting the anti-theft system, repairing or replacing damaged wiring or connections, or replacing the anti-theft module if it is found to be faulty.

Can I drive my Ford vehicle with OBDII code U1451 present?

It is not recommended to drive the vehicle with this code present, as the immobilized state may prevent the engine from starting or cause other safety issues.

How serious is OBDII code U1451 in a Ford vehicle?

This code is considered serious as it can immobilize the vehicle and prevent it from starting, impacting the vehicle's usability and safety.

Is it possible to reset OBDII code U1451 in a Ford vehicle?

Resetting the code may be possible by addressing the underlying issue causing it, such as fixing wiring problems, replacing the anti-theft module, or resetting the anti-theft system.

What should I do if OBDII code U1451 keeps coming back in my Ford vehicle?

If the code keeps reappearing, it is recommended to have a thorough inspection done by a qualified mechanic to identify and address the root cause of the issue.

How much does it typically cost to repair OBDII code U1451 in a Ford vehicle?

The cost of repair can vary depending on the specific cause of the issue, but it may involve expenses for parts replacement, labor, and diagnostic services.

Discuss the causes and fixes for U1451 Ford OBDII Code

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