AutoCodes – Ford – U0101 2012 Ford Fusion

U0101 2012 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 2012 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 4,966

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 2012 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 2012 Ford Fusion - Lost Communication With Transaxle Control Module - AutoCodes.com — U0101 2012 Ford Fusion Code - Lost Communication With Transaxle Control Module

What does this mean?

What are the Possible Causes of the DTC U0101 2012 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 2012 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 2012 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 U0101 2012 Ford Fusion Code

1. What does the OBDII code U0101 on a 2012 Ford Fusion mean?

- The code U0101 indicates a "Lost Communication With Transaxle Control Module" error in the vehicle's onboard diagnostic system.

2. What are common symptoms of a U0101 code in a 2012 Ford Fusion?

- Common symptoms include transmission shifting issues, stalling, poor fuel efficiency, and the vehicle going into limp mode.

3. What are possible causes of a U0101 code in a 2012 Ford Fusion?

- Possible causes include a faulty transaxle control module, damaged wiring or connectors, a defective CAN bus system, or a software issue.

4. How can I diagnose a U0101 code in my 2012 Ford Fusion?

- Diagnosing a U0101 code typically involves checking for other related codes, inspecting the wiring and connectors, testing the transaxle control module, and verifying the CAN bus communication.

5. Can I continue to drive my 2012 Ford Fusion with a U0101 code?

- It is not recommended to drive the vehicle with a U0101 code as it can lead to potential transmission issues and further damage if left unaddressed.

6. How can I repair a U0101 code in a 2012 Ford Fusion?

- Repairing a U0101 code may involve replacing the transaxle control module, repairing damaged wiring or connectors, resetting the system, or updating the software.

7. Are there any DIY tips for fixing a U0101 code in a 2012 Ford Fusion?

- DIY tips include checking the fuses related to the transaxle control module, ensuring all connections are secure, and using a diagnostic tool to reset the code after any repairs.

8. Will a U0101 code reset itself in a 2012 Ford Fusion?

- The U0101 code may reset itself if the underlying issue is temporary, but it is recommended to diagnose and repair the problem to prevent it from recurring.

9. How much does it typically cost to repair a U0101 code in a 2012 Ford Fusion?

- The cost of repairing a U0101 code can vary depending on the cause and the extent of the issue, but it may range from a few hundred to over a thousand dollars, including parts and labor.

10. Can a U0101 code in a 2012 Ford Fusion be prevented?

- While some U0101 codes may be due to unforeseen issues, regular maintenance, checking for loose connections, and addressing any related warning signs promptly can help prevent the code from appearing.