Engine-Codes.com
Engine-Codes – Honda – B1157 Honda

B1157 Honda Code - Gauge Control Module Lost Communication With Multiplex Integrated Control Unit

Quick Answer

When the B1157 code appears on a Honda vehicle, it indicates that the Gauge Control Module has lost communication with the Multiplex Integrated Control Unit (MICU). Common causes include Faulty wiring or connections, Defective Gauge Control Module, Malfunctioning Multiplex Integrated Control Unit. 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
B1157 Honda indicates Gauge Control Module Lost Communication With Multiplex Integrated Control Unit .
Common causes
Common causes include Faulty wiring or connections, Defective Gauge Control Module, Malfunctioning Multiplex Integrated Control Unit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 07, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B1157 Honda Description

When the B1157 code appears on a Honda vehicle, it indicates that the Gauge Control Module has lost communication with the Multiplex Integrated Control Unit (MICU). The Gauge Control Module is responsible for managing the various gauges and indicators on the vehicle's dashboard, while the MICU serves as a central control unit for various electronic systems in the vehicle, such as lighting, door locks, and other functions.

OBDII Code B1157 Honda - Gauge Control Module Lost Communication With Multiplex Integrated Control Unit
B1157 Honda Code - Gauge Control Module Lost Communication With Multiplex Integrated Control Unit

Common Causes of B1157 Honda

  1. Faulty wiring or connections
  2. Defective Gauge Control Module
  3. Malfunctioning Multiplex Integrated Control Unit
  4. Water damage or corrosion in the electrical system
  5. Electrical interference from aftermarket accessories

Symptoms of B1157 Honda

  1. Inaccurate readings on dashboard gauges
  2. Malfunctioning indicator lights
  3. Loss of certain functions controlled by the MICU
  4. Dashboard warning lights illuminated

How to Fix B1157 Honda

  1. Perform a thorough inspection of the wiring and connections between the Gauge Control Module and the MICU.
  2. Check for any signs of water damage or corrosion in the electrical system and address any issues found.
  3. Test the Gauge Control Module and the MICU for proper functionality and replace any faulty components.
  4. Clear the diagnostic trouble codes and reset the system to ensure proper communication between the modules.
  5. Conduct a road test to verify that the issue has been resolved and that all dashboard gauges and functions are working correctly.

Cost to Fix B1157 Honda

The cost of repairing the B1157 code on a Honda vehicle can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates can vary between auto repair shops, so it's recommended to obtain quotes from multiple shops to ensure a competitive price.

Need more information about the B1157 Honda code?

Need more information on how to fix the B1157 Honda code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1157 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 B1157 Honda Code

1. What are the common symptoms of OBDII code B1157 in a Honda, indicating Gauge Control Module lost communication with Multiplex Integrated Control Unit?

- Common symptoms include malfunctioning gauges on the instrument cluster, illuminated warning lights, and loss of communication with the vehicle's control modules.

2. What are the possible causes of OBDII code B1157 in a Honda?

- Possible causes include a faulty Gauge Control Module, issues with the Multiplex Integrated Control Unit, damaged wiring or connectors, or a communication network fault within the vehicle.

3. How can I diagnose the reason behind OBDII code B1157 in my Honda?

- Diagnosis involves using a diagnostic scan tool to retrieve the specific trouble code, checking the connections and wiring related to the Gauge Control Module and Multiplex Integrated Control Unit, and performing a communication network test.

4. What are some repair tips for fixing OBDII code B1157 in a Honda?

- Repair tips include inspecting and repairing any damaged wiring or connectors, replacing the faulty Gauge Control Module or Multiplex Integrated Control Unit, and ensuring proper communication between control modules.

5. Can OBDII code B1157 in a Honda be cleared/reset without fixing the underlying issue?

- While the code can be cleared/reset temporarily, it is recommended to address the root cause to prevent the issue from recurring and ensure proper functionality of the vehicle's instrument cluster and control modules.

6. Is it safe to continue driving my Honda with OBDII code B1157 present?

- It is generally not recommended to drive the vehicle with unresolved communication issues between the Gauge Control Module and Multiplex Integrated Control Unit, as it can affect the accuracy of gauges and potentially lead to other electrical problems.

7. How much does it typically cost to repair OBDII code B1157 in a Honda at a dealership or auto repair shop?

- Repair costs can vary depending on the specific cause of the issue, but it may involve diagnostic fees, parts replacement costs, and labor charges, which can range from a few hundred to over a thousand dollars.

8. Can I attempt to fix OBDII code B1157 in my Honda myself, or should I seek professional help?

- If you have experience with automotive diagnostics and repair, you may attempt to fix the issue yourself by following service manuals and using proper tools. Otherwise, it is advisable to seek professional help to ensure the problem is properly diagnosed and repaired.

9. Are there any recalls or technical service bulletins related to OBDII code B1157 in Honda vehicles?

- It is recommended to check with Honda dealership or official sources for any recalls or technical service bulletins related to OBDII code B1157 to see if there are known issues or remedies provided by the manufacturer.

10. How can I prevent OBDII code B1157 from occurring in my Honda in the future?

- Regular maintenance, proper handling of electrical components, and timely diagnosis and repair of any communication or module issues can help prevent OBDII code B1157 and similar problems from occurring in your Honda.

Discuss the causes and fixes for B1157 Honda OBDII Code

Submit a New Comment

Code B1157 Honda comments

No comments found for this page.