U0140 Nissan Code - Lost Communication With Body Control Module
Quick Answer
The U0140 code for Nissan vehicles indicates that there has been a loss of communication with the Body Control Module (BCM). Common causes include Faulty Body Control Module (BCM), Damaged wiring harnesses, Loose connections or corroded terminals. 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 Nissan indicates Lost Communication With Body Control Module.
- Common causes
- Common causes include Faulty Body Control Module (BCM), Damaged wiring harnesses, Loose connections or corroded terminals.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code U0140 Nissan Description
The U0140 code for Nissan vehicles indicates that there has been a loss of communication with the Body Control Module (BCM). The BCM is a crucial component in modern vehicles, responsible for controlling various electronic functions such as power windows, door locks, interior lighting, and other body-related systems. When communication with the BCM is lost, it can lead to malfunctions in these systems, affecting the overall performance and functionality of the vehicle.
Common Causes of U0140 Nissan
- Faulty Body Control Module (BCM)
- Damaged wiring harnesses
- Loose connections or corroded terminals
- Problems with other modules on the CAN network
- Software glitches in the BCM
Symptoms of U0140 Nissan
- Malfunctioning power windows
- Inoperative door locks
- Interior lights not turning on
- Issues with the central locking system
- Warning lights illuminated on the dashboard
How to Fix U0140 Nissan
- Diagnose the issue using a diagnostic scanner to confirm the U0140 code and identify the specific communication error.
- Inspect the wiring harnesses and connections for any damage, corrosion, or loose connections. Repair or replace as needed.
- Check for software updates for the BCM and other modules on the CAN network. Update software if necessary.
- If the BCM is determined to be faulty, replace it with a new or rebuilt unit. Ensure it is programmed and configured correctly for the specific vehicle.
- Clear the code and perform a test drive to confirm that the communication with the BCM has been restored and that all affected systems are functioning properly.
Cost to Fix U0140 Nissan
The typical repair costs for addressing a U0140 code on a Nissan vehicle can vary depending on the specific cause of the issue and the extent of repairs needed. In general, replacing a faulty BCM can range from $500 to $1000, including parts and labor. Additional costs may apply if there are other underlying issues that need to be addressed. It's recommended to consult with a qualified mechanic or dealership for a more accurate cost estimate based on the individual circumstances of the vehicle. Keep in mind that labor rates at auto repair shops can vary, so it's advisable to inquire about rates in your local area.
Need more information about the U0140 Nissan code?
Need more information on how to fix the U0140 Nissan code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the U0140 Nissan code diagnosed by a professional: Find a repair shop in your area
Information for Specific Nissan Models
- U0140 2009 Nissan Altima Sedan — Lost Communication With Body Control Module
- U0140 2010 Nissan Altima Sedan — Lost Communication With Body Control Module
- U0140 2011 Nissan Altima Sedan — Lost Communication With Body Control Module
- U0140 2012 Nissan Altima Sedan — Lost Communication With Body Control Module
- U0140 2010 Nissan Sentra — Lost Communication With Body Control Module
- U0140 2011 Nissan Sentra — Lost Communication With Body Control Module
- U0140 2012 Nissan Sentra — Lost Communication With Body Control Module
- U0140 2010 Nissan Versa — Lost Communication With Body Control Module
- U0140 2011 Nissan Versa — Lost Communication With Body Control Module
- U0140 2012 Nissan Versa — Lost Communication With Body Control Module
Frequently Asked Questions about U0140 Nissan Code
1. What are the common symptoms of OBDII code U0140 in a Nissan related to lost communication with the Body Control Module?
- Common symptoms include non-functioning power windows, door locks, interior lights, and issues with the vehicle's security system.
2. What are the possible causes of the U0140 code in a Nissan?
- The code may be triggered by a faulty Body Control Module, damaged wiring, loose connections, or a drained battery.
3. How can I diagnose the U0140 code in my Nissan?
- Diagnosing this code typically involves using a diagnostic scanner to read the trouble codes, checking the connections to the Body Control Module, and inspecting the wiring harness for any damage.
4. Can I drive my Nissan with the U0140 code present?
- It is not recommended to drive the vehicle with the U0140 code active, as it can lead to further electrical issues and safety concerns.
5. How can I repair the U0140 code in my Nissan?
- Repairing the U0140 code often involves addressing the underlying cause, such as replacing the Body Control Module, repairing damaged wiring, or ensuring all connections are secure.
6. Are there any DIY tips for fixing the U0140 code in a Nissan?
- While some basic checks like inspecting connections and fuses can be done by DIY enthusiasts, diagnosing and repairing the U0140 code often requires advanced diagnostic tools and expertise.
7. Is it common for the U0140 code to reoccur in a Nissan after repair?
- If the root cause of the U0140 code is not properly addressed during repair, there is a possibility for the code to reoccur.
8. Can a drained battery cause the U0140 code in a Nissan?
- Yes, a drained or weak battery can disrupt communication with the Body Control Module and trigger the U0140 code.
9. How long does it typically take to fix the U0140 code in a Nissan at a repair shop?
- The time taken to fix the U0140 code can vary depending on the cause and extent of the issue, but it may take a few hours to a full day in some cases.
10. Is it necessary to reset the OBDII system after repairing the U0140 code in a Nissan?
- Yes, it is important to clear the trouble codes and reset the OBDII system after repairing the U0140 code to ensure proper functioning and accurate diagnostics in the future.
Discuss the causes and fixes for U0140 Nissan OBDII Code
Code U0140 Nissan comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.