AutoCodes – Ford – U0101 2007 Ford Fusion

U0101 2007 Ford Fusion Code - Lost Communication With Transaxle Control Module

Quick Answer

The Powertrain Control Module (PCM) continuously monitors the Controller Area Network (CAN) for messages from the Transaxle Control Module (TCM). Common causes include Damaged Controller Area Network (CAN) communication bus circuit, Check for more codes, Faulty Transaxle Control Module (TCM). 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: U0101 2007 Ford Fusion indicates Lost Communication With Transaxle Control Module.
Common causes: Common causes include Damaged Controller Area Network (CAN) communication bus circuit, Check for more codes, Faulty Transaxle Control Module (TCM).
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 4,098

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 Mar 29, 2020

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code U0101 2007 Ford Fusion Description

The Powertrain Control Module (PCM) continuously monitors the Controller Area Network (CAN) for messages from the Transaxle Control Module (TCM). The U0101 code sets when the PCM does not receive the TCM message within the defined amount of time.

OBDII Code U0101 2007 Ford Fusion - Lost Communication With Transaxle Control Module - AutoCodes.com — U0101 2007 Ford Fusion Code - Lost Communication With Transaxle Control Module

What does this mean?

What are the Possible Causes of the DTC U0101 2007 Ford Fusion?

Damaged Controller Area Network (CAN) communication bus circuit
Check for more codes
Faulty Transaxle Control Module (TCM)
Transaxle Control Module (TCM) harness is open or shorted
Transaxle Control Module (TCM) circuit poor electrical connection

How to Fix the DTC U0101 2007 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

Check for other Powertrain Control Module (PCM) codes or PCM related symptoms. Diagnose all other PCM codes or PCM related symptoms first.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the U0101 2007 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 U0101 2007 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 U0101 2007 Ford Fusion Code

1. What does the OBDII code U0101 mean on a 2007 Ford Fusion?

- The code U0101 indicates a lost communication with the Transaxle Control Module.

2. What are the common symptoms of a U0101 code in a 2007 Ford Fusion?

- Common symptoms include the transmission shifting erratically or not shifting at all, the vehicle going into limp mode, and the Check Engine light illuminating.

3. What are the possible causes of a U0101 code in a 2007 Ford Fusion?

- The code can be triggered by issues such as a faulty Transaxle Control Module, damaged wiring or connectors, a drained battery, or software glitches.

4. How can I diagnose a U0101 code in my 2007 Ford Fusion?

- Diagnosing the U0101 code typically involves checking the transmission control module for communication issues, inspecting the wiring and connectors for damage, and ensuring the battery is fully charged.

5. Can I drive my 2007 Ford Fusion with a U0101 code?

- It is not recommended to drive the vehicle with a U0101 code as it can lead to transmission issues and potential safety hazards. It's best to address the problem promptly.

6. How can I repair a U0101 code in my 2007 Ford Fusion?

- Repairing a U0101 code may involve replacing the Transaxle Control Module if it's faulty, repairing any damaged wiring or connectors, or updating the module's software.

7. Can a DIY enthusiast fix a U0101 code in a 2007 Ford Fusion?

- While some enthusiasts may have the skills to diagnose and repair a U0101 code, it is recommended to seek professional help due to the complexity of transmission control systems.

8. How much does it cost to fix a U0101 code in a 2007 Ford Fusion?

- The cost of fixing a U0101 code can vary depending on the underlying cause. It may range from a few hundred dollars for simple repairs to over a thousand dollars for module replacement.

9. Will resetting the U0101 code make it go away permanently?

- Resetting the code without addressing the underlying issue will not make it go away permanently. The problem will likely resurface, and it's essential to diagnose and repair the root cause.

10. Is a U0101 code common in 2007 Ford Fusion vehicles?

- While not extremely common, the U0101 code can occur in 2007 Ford Fusion models due to communication issues between the transmission control module and other components.