U0101 Ford Code - Lost Communication With Transmission 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 Ford indicates Lost Communication With Transmission 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.
Code U0101 Ford Description
What are the Possible Causes of the DTC U0101 Ford?
- 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 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.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the U0101 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 U0101 Ford code?
Need more information on how to fix the U0101 Ford code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U0101 Ford code diagnosed by a professional: Find a repair shop in your area
Information for Specific Ford Models
- U0101 2006 Ford Fusion — Lost Communication With Transaxle Control Module
- U0101 2007 Ford Fusion — Lost Communication With Transaxle Control Module
- U0101 2009 Ford Fusion — Lost Communication With Transaxle Control Module
- U0101 2010 Ford Fusion — Lost Communication With Transaxle Control Module
- U0101 2011 Ford Fusion — Lost Communication With Transaxle Control Module
- U0101 2012 Ford Fusion — Lost Communication With Transaxle Control Module
Frequently Asked Questions about U0101 Ford Code
1. What are some common symptoms of the U0101 Ford code?
- Common symptoms include issues with shifting gears, stalling, rough idling, and the transmission going into limp mode.
2. What are the possible causes of the U0101 Ford code?
- The U0101 code is often caused by faulty wiring or connectors, a defective transmission control module (TCM), or a malfunctioning powertrain control module (PCM).
3. How can I diagnose the U0101 Ford code?
- Diagnosis typically involves checking the wiring and connectors for damage, testing the TCM and PCM for proper functionality, and using a diagnostic scanner to retrieve specific trouble codes.
4. Can a low battery voltage trigger the U0101 code?
- Yes, low battery voltage or a weak battery can sometimes trigger the U0101 code due to insufficient power supply to the TCM and PCM.
5. What are some repair tips for fixing the U0101 Ford code?
- Repair tips include inspecting and repairing any damaged wiring or connectors, replacing the TCM or PCM if faulty, and ensuring a strong and stable power supply.
6. Can driving with the U0101 code cause further damage to the vehicle?
- Continuing to drive with the U0101 code may lead to more severe transmission issues, decreased fuel efficiency, and potential safety hazards. It is recommended to address the problem promptly.
7. Is it possible to reset the U0101 Ford code without repairing the underlying issue?
- Resetting the U0101 code without addressing the root cause may temporarily clear the code, but the problem will likely reappear once the fault is detected again.
8. How much does it typically cost to repair the U0101 Ford code?
- The cost of repairing the U0101 code can vary depending on the specific cause and the labor rates of the repair shop. It is advisable to obtain multiple quotes for an accurate estimate.
9. Can a DIY enthusiast fix the U0101 Ford code at home?
- While some experienced DIY enthusiasts may be able to diagnose and repair the U0101 code, it is recommended to consult a professional mechanic for proper diagnosis and repair to ensure the issue is resolved correctly.
10. How long does it usually take to fix the U0101 Ford code?
- The time it takes to fix the U0101 code can vary based on the specific cause, availability of parts, and the expertise of the mechanic. In some cases, the repair can be completed within a few hours, while more complex issues may take longer to resolve.
Discuss the causes and fixes for U0101 Ford OBDII Code
-
My Ford Focus 2012 would not start from cold. it would start after about 10 attempts. This happened near a service station and I had it checked. they provided an error Code U0101.
I then took my car to FORD Service and I also had a recall letter from FORD on this issue. FORD says they could not find any fault with the vehicle and the service Code U0101 was erased. I am reluctant to take back my vehicle and insisted they change the transmission control module TCM as stated in the recall letter.
Not sure if they will do it. But I am sure, the staring problem will recur.
-
Hello My ford focus 2013 have the engine light on, on the scan show error codes , P1912 transmission Range Signal, U0101 lost communication with (TCM), but my focus is 5 manual speed transmission, my question is the manual transmission have a TCM or only automatic transmissions?
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
