U0140 Ford Code - Lost Communication With Body Control Module
Quick Answer
The Powertrain Control Module (PCM) continuously monitors Controller Area Network (CAN) for messages from Body Control Module (BCM). Common causes include Communication error, Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted. 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
- U0140 Ford indicates Lost Communication With Body Control Module.
- Common causes
- Common causes include Communication error, Faulty Body Control Module (BCM), Body Control Module (BCM) harness is open or shorted.
- 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 U0140 Ford Description
What are the Possible Causes of the DTC U0140 Ford?
- Communication error
- Faulty Body Control Module (BCM)
- Body Control Module (BCM) harness is open or shorted
- Body Control Module (BCM) circuit poor electrical connection
How to Fix the DTC U0140 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 U0140 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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Frequently Asked Questions about U0140 Ford Code
1. What are the common symptoms of OBDII code U0140 in a Ford vehicle?
Common symptoms include dashboard warning lights, loss of communication with the body control module, power window issues, and malfunctioning interior lights.
2. What could be causing the U0140 code indicating a lost communication with the Body Control Module in a Ford vehicle?
Possible causes include a faulty body control module, damaged wiring or connectors, low battery voltage, or a software glitch in the vehicle's communication system.
3. How can I diagnose the U0140 code in my Ford to determine the exact issue?
To diagnose the U0140 code, a professional diagnostic scan tool is recommended to communicate with the vehicle's onboard computer system and pinpoint the source of the communication loss with the body control module.
4. Can I still drive my Ford with the U0140 code present?
It is not recommended to drive your Ford with the U0140 code active, as it may lead to further electrical issues and potential safety hazards due to the loss of communication with the body control module.
5. Is it possible to repair the U0140 code issue in a Ford vehicle without professional help?
While some basic troubleshooting steps like checking for loose connections or blown fuses can be done at home, resolving the U0140 code usually requires the expertise of a qualified mechanic to diagnose and repair the underlying problem effectively.
6. How much does it typically cost to fix the U0140 code related to a lost communication with the Body Control Module in a Ford vehicle?
The cost of fixing the U0140 code can vary depending on the exact cause of the issue, but it may range from $200 to $600 or more, including parts and labor.
7. Can a DIY enthusiast with automotive experience attempt to fix the U0140 code issue in a Ford vehicle?
While basic troubleshooting steps can be performed by DIY enthusiasts, diagnosing and repairing the U0140 code usually requires specialized tools and expertise, so it is recommended to consult a professional mechanic for this issue.
8. What are the potential risks of ignoring the U0140 code indicating a lost communication with the Body Control Module in a Ford vehicle?
Ignoring the U0140 code can lead to further electrical problems, malfunctioning vehicle systems, and potential safety risks due to the inability to communicate effectively with the body control module.
9. How long does it usually take to repair the U0140 code in a Ford vehicle?
The repair time for the U0140 code can vary depending on the complexity of the issue and the availability of parts, but it typically takes a few hours to a full day for a mechanic to diagnose and fix the problem.
10. Are there any preventive measures to avoid encountering the U0140 code related to a lost communication with the Body Control Module in a Ford vehicle?
Regular maintenance checks, keeping the vehicle's electrical system in good condition, and addressing any warning signs promptly can help prevent issues like the U0140 code from occurring in a Ford vehicle.
Discuss the causes and fixes for U0140 Ford OBDII Code
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I own a 2013 f150 Stx 5.0 4x4 and I changed my Brake pads on left rear and right rear tires and ever since I have had my Amber ABS light on,My Red (!)(P)BRAKE light on and my ?~~ light on. Got DTC #'s: C1299,U0140,U0114 and U0155. Any help would be greatly appreciated.
Thank you much
Brandon Johnson
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Too many codes and most of the codes are for lost communication. I suggest clearing all the codes and check what codes comes back first. Also, check the battery charge, low battery charge could cause similar problems.
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The fault code U0140 in your 2016 Ford Focus means "Lost Communication with Body Control Module (BCM)." The BCM controls various functions like door locks, power windows, and lighting. When communication between the Engine Control Module (ECM) and the BCM is interrupted, it can cause these systems to malfunction.
Possible Causes:
- Faulty BCM: A malfunctioning BCM can disrupt communication.
- Damaged or Corroded Wiring: Problems in the wiring or connectors between the ECM and BCM can impede signal transmission.
- Software Issues: Outdated or faulty software in the BCM or ECM may cause communication problems.
- Electrical Interference: Problems with power supply or grounding can affect communication.
Symptoms:
- Warning lights on the dashboard.
- Malfunctions in systems like power windows, door locks, or interior lighting.
- Issues with remote access functions.
Recommended Actions:
- Visual Inspection: Check the wiring and connectors between the ECM and BCM for any damage or corrosion.
- Use a Diagnostic Tool: Confirm the fault code and gather more information with an OBD-II scan tool.
- Software Updates: Look for any available software updates for the ECM or BCM and apply them if needed.
- Professional Diagnosis: If the issue persists, consult a professional to have the BCM and related systems thoroughly checked.
Addressing this code promptly is important to ensure that vehicle control systems function correctly.
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