AutoCodes – Honda – B1350 Honda

B1350 Honda Code - Communication Bus Line Error

Quick Answer

The Multiplex Integrated Control Unit (MICU) has encountered a Communication Bus Line Error with other control units. Common causes include Faulty Multiplex Integrated Control Unit (MICU), Multiplex Integrated Control Unit (MICU) harness is open or shorted, Multiplex Integrated Control Unit (MICU) 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
B1350 Honda indicates Communication Bus Line Error.
Common causes
Common causes include Faulty Multiplex Integrated Control Unit (MICU), Multiplex Integrated Control Unit (MICU) harness is open or shorted, Multiplex Integrated Control Unit (MICU) 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 1,092
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Sep 24, 2019
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Code B1350 Honda Description

The Multiplex Integrated Control Unit (MICU) has encountered a Communication Bus Line Error with other control units.
OBDII Code B1350 Honda - Communication Bus Line Error - AutoCodes.com
B1350 Honda Code - Communication Bus Line Error

What are the Possible Causes of the DTC B1350 Honda?

  • Faulty Multiplex Integrated Control Unit (MICU)
  • Multiplex Integrated Control Unit (MICU) harness is open or shorted
  • Multiplex Integrated Control Unit (MICU) circuit poor electrical connection

How to Fix the DTC B1350 Honda?

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 B1350 Honda 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 B1350 Honda code?

Need more information on how to fix the B1350 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1350 Honda code diagnosed by a professional: Find a repair shop in your area

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 B1350 Honda Code

1. What are the common symptoms of OBDII code B1350 (Communication Bus Line Error) in a Honda vehicle?

- Common symptoms include issues with the instrument cluster, trouble connecting to the vehicle's onboard diagnostic system, and malfunctioning communication between various control modules.

2. What are some possible causes of OBDII code B1350 in a Honda?

- Possible causes include faulty wiring or connectors in the communication bus system, a malfunctioning control module, or a disrupted communication network within the vehicle.

3. How can I diagnose a Communication Bus Line Error (B1350) in my Honda?

- Diagnosis typically involves using a diagnostic scan tool to communicate with the vehicle's control modules, checking for any stored trouble codes, and performing a thorough inspection of the communication bus wiring and connectors.

4. Are there any specific repair tips for addressing OBDII code B1350 in a Honda?

- Repair tips may include checking and repairing any damaged wiring or connectors in the communication bus system, resetting the control modules, and ensuring proper communication network functionality.

5. Can OBDII code B1350 in a Honda be fixed without professional help?

- Depending on the underlying cause, some simple repairs like checking and securing loose connections may be possible without professional help. However, more complex issues may require the expertise of a trained technician.

6. Is it safe to continue driving my Honda with OBDII code B1350 (Communication Bus Line Error) present?

- It is generally not recommended to continue driving with this code present, as it may lead to further communication issues between control modules, potentially affecting the vehicle's performance and safety.

7. How much does it typically cost to repair OBDII code B1350 in a Honda?

- The cost of repair can vary depending on the specific cause of the Communication Bus Line Error. Simple fixes like addressing wiring issues may be relatively inexpensive, while more complex repairs involving control modules could be more costly.

8. Can a DIY enthusiast with basic automotive knowledge fix OBDII code B1350 in a Honda?

- DIY enthusiasts with basic automotive knowledge may be able to address simple causes of the code, such as checking connections and wiring. However, for more complex issues, professional help may be required.

9. Will resetting the OBDII system clear the B1350 code in my Honda?

- Resetting the OBDII system may temporarily clear the code, but it is important to diagnose and address the root cause of the Communication Bus Line Error to prevent it from reoccurring.

10. How long does it typically take to repair OBDII code B1350 in a Honda?

- The repair time can vary depending on the complexity of the issue and the availability of parts. Simple fixes may be completed in a short amount of time, while more involved repairs may take longer to diagnose and address.

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