AutoCodes – Generic – B2050

B2050 Code - Communication Bus Line Error

Quick Answer

The Right Power Sliding Door Control Unit receives inputs from the switches and sensors in the sliding door system and from B-CAN. Common causes include Faulty Right Power Sliding Door Control Unit, Right Power Sliding Door Control Unit harness is open or shorted, Right Power Sliding Door Control Unit 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: B2050 indicates Communication Bus Line Error.
Common causes: Common causes include Faulty Right Power Sliding Door Control Unit, Right Power Sliding Door Control Unit harness is open or shorted, Right Power Sliding Door Control Unit 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 1,039

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 Feb 26, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B2050 Description

The Right Power Sliding Door Control Unit receives inputs from the switches and sensors in the sliding door system and from B-CAN. It outputs to the slide motor, release actuator, and closer motor to control the movement of the doors. It also controls the sliding door beeper and indicator. The OBDII code sets when the Right Power Sliding Door Control Unit fails to communicate.

OBDII Code B2050 - Communication Bus Line Error - AutoCodes.com — B2050 Code - Communication Bus Line Error

What does this mean?

What are the Possible Causes of the DTC B2050?

Faulty Right Power Sliding Door Control Unit
Right Power Sliding Door Control Unit harness is open or shorted
Right Power Sliding Door Control Unit circuit poor electrical connection

How to Fix the DTC B2050?

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 B2050 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 B2050 code?

Need more information on how to fix the B2050 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2050 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B2050 Acura — Communication Bus Line Error
B2050 Ford — Right Rear Turn Lamp Circuit Short To Ground
B2050 Honda — Communication Bus Line Error
B2050 Lincoln — Right Rear Turn Lamp Circuit Short To Ground
B2050 Mercury — Right Rear Turn Lamp Circuit Short To Ground

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 B2050 Code

1. What are the common symptoms of OBDII code B2050 (Communication Bus Line Error)?

- Common symptoms include issues with the vehicle's network communication system, such as intermittent or complete loss of communication between modules.

2. What are some possible causes of OBDII code B2050?

- Possible causes include faulty wiring or connections in the communication bus line, damaged modules, software issues, or a defective diagnostic scanner.

3. How can I diagnose OBDII code B2050?

- Diagnosis typically involves using a diagnostic scanner to check for trouble codes, inspecting the communication bus wiring and connections, and testing the modules for proper communication.

4. Can a DIY enthusiast repair OBDII code B2050 at home?

- While some basic troubleshooting like checking connections and fuses can be done at home, resolving the issue often requires advanced diagnostic tools and expertise, making it best left to professionals.

5. What are some repair tips for OBDII code B2050?

- Repair tips may include checking and repairing any damaged wiring, ensuring proper module connections, updating software, and resetting the communication network.

6. Is it safe to drive with OBDII code B2050 present?

- It is not recommended to drive with this code present, as it can affect the functionality of various vehicle systems and potentially lead to safety hazards.

7. How much does it typically cost to repair OBDII code B2050?

- The cost of repair can vary depending on the underlying cause of the code, but it may involve diagnostic fees, parts replacement, and labor costs, ranging from a few hundred to a few thousand dollars.

8. Can OBDII code B2050 be triggered by a loose gas cap or other minor issues?

- No, OBDII code B2050 specifically relates to communication bus line errors and is not related to issues like a loose gas cap or other minor malfunctions.

9. Will OBDII code B2050 clear itself over time?

- OBDII codes typically do not clear themselves unless the underlying issue is resolved. Ignoring the code can lead to further complications and potential damage to the vehicle's systems.

10. How can I prevent OBDII code B2050 from recurring in the future?

- Regular maintenance, ensuring proper connections and wiring integrity, and addressing any communication system issues promptly can help prevent the recurrence of OBDII code B2050.