AutoCodes – Nissan – U0140 2011 Nissan Versa

U0140 2011 Nissan Versa Code - Lost Communication With Body Control Module

Quick Answer

The Controller Area Network (CAN) is a serial communication line for real time applications. Common causes include CAN communication line between Body Control Module (BCM) and Engine Control Module (ECM), 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 2011 Nissan Versa indicates Lost Communication With Body Control Module.
Common causes: Common causes include CAN communication line between Body Control Module (BCM) and Engine Control Module (ECM), 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.

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Code Popularity 3,491

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 Apr 01, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0140 2011 Nissan Versa Description

The Controller Area Network (CAN) is a serial communication line for real time applications. It is an on-vehicle multiplex communication line with high data communication speed and excellent error detection ability. Many electronic control units are equipped onto a vehicle, and each control unit shares information and links with other control units during operation (not independent). In CAN communication, control units are connected with 2 communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring. Each control unit transmits/receives data but selectively reads the required data only. The Diagnostic Trouble Code (DTC) sets when the Engine Control Module (ECM) is not transmitting or receiving CAN communication signal of OBDII (emission related diagnosis) with Body Control Module (BCM) for 2 seconds or more.

OBDII Code U0140 2011 Nissan Versa - Lost Communication With Body Control Module - AutoCodes.com — U0140 2011 Nissan Versa Code - Lost Communication With Body Control Module

What does this mean?

What are the Possible Causes of the DTC U0140 2011 Nissan Versa?

CAN communication line between Body Control Module (BCM) and Engine Control Module (ECM)
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 2011 Nissan Versa?

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 2011 Nissan Versa 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 U0140 2011 Nissan Versa 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 U0140 2011 Nissan Versa Code

1. What does the OBDII code U0140 on a 2011 Nissan Versa mean?

The code U0140 indicates a communication problem between the Engine Control Module (ECM) and the Body Control Module (BCM).

2. What are common symptoms of the U0140 code in a 2011 Nissan Versa?

Common symptoms include illuminated warning lights on the dashboard, loss of certain electronic functions, and intermittent issues with power windows, locks, or lights.

3. What are possible causes of the U0140 code in a 2011 Nissan Versa?

Potential causes of the U0140 code include wiring or connection issues, a faulty BCM, a malfunctioning ECM, or a software glitch in the vehicle's communication network.

4. How can I diagnose the U0140 code on my 2011 Nissan Versa?

Diagnosing the U0140 code typically involves checking for loose or damaged wiring, ensuring all connections are secure, and using a diagnostic scanner to communicate with the BCM and ECM for further troubleshooting.

5. Can I still drive my 2011 Nissan Versa with the U0140 code present?

It is not recommended to drive your vehicle with the U0140 code present, as it may result in further electrical issues or malfunctions. It's best to address the problem promptly to avoid potential safety hazards.

6. How can I repair the U0140 code on my 2011 Nissan Versa?

Repairing the U0140 code may involve fixing any wiring or connection issues, replacing a faulty BCM or ECM, updating software, or reprogramming the modules to restore communication between them.

7. Can a DIY enthusiast fix the U0140 code on a 2011 Nissan Versa?

While some basic troubleshooting steps can be taken by a DIY enthusiast, diagnosing and repairing the U0140 code may require specialized tools and expertise. It is recommended to consult a professional mechanic for proper diagnosis and repair.

8. How much does it cost to fix the U0140 code on a 2011 Nissan Versa?

The cost of fixing the U0140 code can vary depending on the underlying cause of the issue. Repairs may range from a simple wiring fix to replacing the BCM or ECM, potentially costing anywhere from a few hundred to a few thousand dollars.

9. Will resetting the trouble codes make the U0140 code disappear on my 2011 Nissan Versa?

Resetting the trouble codes may temporarily clear the U0140 code, but if the underlying issue is not addressed, the code is likely to reappear once the problem resurfaces. It's essential to diagnose and fix the root cause of the communication error.

10. Is the U0140 code a common issue in 2011 Nissan Versa vehicles?

While the U0140 code may not be as common as some other OBDII codes, communication errors between modules can occur in various vehicle models, including the 2011 Nissan Versa. Proper maintenance and timely diagnostics can help prevent such issues.