AutoCodes – Nissan – U0141 Nissan

U0141 Nissan Code - Lost Communication With Body Control Module 'A'

Quick Answer

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Common causes include Faulty Body Control Module (BCM) 'A', Body Control Module 'A' harness is open or shorted, Body Control Module 'A' circuit poor electrical connection. 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: U0141 Nissan indicates Lost Communication With Body Control Module 'A'.
Common causes: Common causes include Faulty Body Control Module (BCM) 'A', Body Control Module 'A' harness is open or shorted, Body Control Module 'A' circuit poor electrical connection.
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 2,686

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 06, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code U0141 Nissan Description

A Controller Area Network (CAN) is a vehicle bus standard designed to interconnect automotive devices without a host computer. Operating information and commands are exchanged among the devices. The devices have programmed information about what messages are needed to be exchanged on the serial data circuits. CAN bus uses two dedicated wires for communication. The wires are called CAN high and CAN low. When the CAN bus is in idle mode, both lines carry 2.5V. When data bits are being transmitted, the CAN high line goes to 3.75V, and the CAN low drops to 1.25V, thereby generating a 2.5V differential between the lines. Since communication relies on a voltage differential between the two bus lines, the CAN bus is NOT sensitive to inductive spikes, electrical fields, or other noise. The Diagnostic Trouble Code (DTC) sets when a periodic message from the Body Control Module 'A' has not been received.

OBDII Code U0141 Nissan - Lost Communication With Body Control Module 'A' - AutoCodes.com — U0141 Nissan Code - Lost Communication With Body Control Module 'A'

What does this mean?

What are the Possible Causes of the DTC U0141 Nissan?

Faulty Body Control Module (BCM) 'A'
Body Control Module 'A' harness is open or shorted
Body Control Module 'A' circuit poor electrical connection

How to Fix the DTC U0141 Nissan?

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 U0141 Nissan 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 U0141 Nissan Code

1. What are the common symptoms of OBDII code U0141 in a Nissan related to lost communication with the Body Control Module 'A'?

- Common symptoms include issues with interior lights, power windows not working, malfunctioning door locks, and problems with the vehicle's electronic systems.

2. What are some possible causes of OBDII code U0141 in a Nissan?

- Possible causes may include a faulty Body Control Module, damaged wiring or connectors, a blown fuse, a software issue, or a weak battery.

3. How can I diagnose the cause of OBDII code U0141 in my Nissan?

- You can diagnose the issue by checking the wiring and connectors for any damage, testing the battery and fuses, and using a diagnostic scanner to communicate with the Body Control Module.

4. Can I still drive my Nissan with OBDII code U0141 present?

- It is not recommended to drive the vehicle with this code as it may affect important electronic functions of the car. It is best to address the issue promptly.

5. How can I repair OBDII code U0141 in my Nissan?

- Repair options may include replacing the Body Control Module, repairing damaged wiring, ensuring proper battery connection, and resetting the system with a diagnostic scanner.

6. Is it possible to reset OBDII code U0141 in a Nissan without professional help?

- Resetting the code can be done by disconnecting the battery for a few minutes, but it is recommended to address the underlying issue to prevent the code from reappearing.

7. How much does it cost to fix OBDII code U0141 in a Nissan?

- The cost of fixing this code can vary depending on the specific issue causing it. It is advisable to consult a professional technician for an accurate diagnosis and cost estimate.

8. Can extreme weather conditions cause OBDII code U0141 in a Nissan?

- Extreme weather conditions can potentially affect the electrical components of a vehicle, leading to issues like lost communication with the Body Control Module 'A'.

9. Are there any preventative measures to avoid OBDII code U0141 in a Nissan?

- Regular maintenance checks, keeping the vehicle's electrical system in good condition, and addressing any warning signs promptly can help prevent issues like U0141.

10. Will OBDII code U0141 cause my Nissan to fail an emissions test?

- The code itself may not directly cause a failure, but it indicates a problem with the vehicle's electronic systems, which could lead to an emissions test failure if left unresolved.