Engine-Codes.com
Engine-Codes – Acura – B2157 Acura

B2157 Acura Code - Driver Side MPCS Unit Lost Communication With Gauge Control Module

Quick Answer

The B2157 diagnostic trouble code (DTC) for Acura vehicles indicates that the driver side MPCS (Multi-Purpose Camera System) unit has lost communication with the Gauge Control Module. Common causes include Faulty wiring or connectors, Malfunctioning MPCS unit, Malfunctioning Gauge Control Module. 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
B2157 Acura indicates Driver Side MPCS Unit Lost Communication With Gauge Control Module.
Common causes
Common causes include Faulty wiring or connectors, Malfunctioning MPCS unit, Malfunctioning Gauge Control Module.
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 20, 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 B2157 Acura Description

The B2157 diagnostic trouble code (DTC) for Acura vehicles indicates that the driver side MPCS (Multi-Purpose Camera System) unit has lost communication with the Gauge Control Module. The MPCS unit is responsible for various functions related to safety systems, such as lane departure warning, collision mitigation braking, and adaptive cruise control. The Gauge Control Module, on the other hand, is responsible for displaying information on the instrument cluster.

OBDII Code B2157 Acura - Driver Side MPCS Unit Lost Communication With Gauge Control Module
B2157 Acura Code - Driver Side MPCS Unit Lost Communication With Gauge Control Module

Common Causes of B2157 Acura

  1. Faulty wiring or connectors
  2. Malfunctioning MPCS unit
  3. Malfunctioning Gauge Control Module
  4. Software glitches in the vehicle's system
  5. Communication error within the vehicle's network

Symptoms of B2157 Acura

  1. Malfunctioning lane departure warning system
  2. Inaccurate display of information on the instrument cluster
  3. Unresponsive collision mitigation braking system
  4. Adaptive cruise control not working properly
  5. Warning lights illuminated on the dashboard

How to Fix B2157 Acura

  1. Perform a thorough diagnostic scan to identify the specific cause of the communication loss.
  2. Inspect wiring and connectors for any damage or corrosion, repair or replace as needed.
  3. Test the MPCS unit and Gauge Control Module for proper functionality, replace if necessary.
  4. Update software in the vehicle's system to address any glitches.
  5. Reset the communication network and ensure proper communication between components.

Cost to Fix B2157 Acura

The typical repair costs for addressing the B2157 code can vary depending on the specific cause of the issue. On average, the repair costs for this type of communication error can range from $200 to $500, including parts and labor. However, it's important to note that the actual cost can be higher or lower based on factors such as location, vehicle make and model, and the extent of the repair needed. Diagnostic time and labor rates at auto repair shops can vary, with hourly rates typically ranging from $80 to $150. It's recommended to consult with a professional mechanic to get an accurate estimate for your specific situation.

Need more information about the B2157 Acura code?

Need more information on how to fix the B2157 Acura code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B2157 Acura 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 B2157 Acura Code

1. What are the common symptoms of OBDII code B2157 in an Acura related to the Driver Side MPCS Unit Lost Communication With Gauge Control Module?

- Common symptoms include loss of communication between the driver side multiplex control unit (MPCS) and the gauge control module, resulting in issues with instrument cluster functionality.

2. What are some possible causes of OBDII code B2157 in an Acura?

- Possible causes of this code include a faulty driver side MPCS unit, a malfunctioning gauge control module, damaged wiring or connectors, or a communication network issue within the vehicle.

3. How can I diagnose the OBDII code B2157 in my Acura?

- Diagnosing this code typically involves using a diagnostic scan tool to communicate with the affected modules, checking the wiring and connectors for any damage, and testing the components involved in the communication network.

4. What are the repair options for resolving OBDII code B2157 in an Acura?

- Repair options may include repairing or replacing the driver side MPCS unit, replacing the gauge control module, repairing any damaged wiring or connectors, or addressing any communication network issues within the vehicle.

5. Can I drive my Acura with OBDII code B2157 present?

- It is not recommended to drive your vehicle with this code present, as it can affect the functionality of important systems like the instrument cluster. It's best to address the issue promptly to ensure safe operation.

6. Is it possible to clear the OBDII code B2157 in an Acura without fixing the underlying issue?

- While you can clear the code using a diagnostic scan tool, it is important to address the root cause of the problem to prevent the code from reoccurring and to ensure proper functioning of the affected systems.

7. How can I prevent OBDII code B2157 from appearing in my Acura in the future?

- Regular vehicle maintenance, including checking and maintaining electrical connections, can help prevent issues like OBDII code B2157. Addressing any communication network problems promptly can also help prevent this code from reoccurring.

8. Can a DIY enthusiast repair OBDII code B2157 in an Acura, or is professional assistance recommended?

- The complexity of diagnosing and repairing OBDII code B2157 may require specialized knowledge and tools, so professional assistance is often recommended. However, DIY enthusiasts with experience in automotive electrical systems may be able to tackle the issue.

9. Are there any recalls or technical service bulletins related to OBDII code B2157 in Acura vehicles?

- Checking with your local Acura dealership or the manufacturer's website for any recalls or technical service bulletins related to this specific OBDII code can provide additional guidance and resources for addressing the issue.

10. How long does it typically take to repair OBDII code B2157 in an Acura?

- The time required to repair this code can vary depending on the specific cause of the issue, the availability of parts, and the expertise of the technician. It is advisable to consult with a professional for a more accurate estimate.

Discuss the causes and fixes for B2157 Acura OBDII Code

Submit a New Comment

Code B2157 Acura comments

No comments found for this page.