Engine-CodesAcura – B1063 Acura

B1063 Acura Code - Relay Control Module Lost Communication With Combination Switch Control Unit

Quick Answer

The B1063 diagnostic trouble code for Acura vehicles indicates that the Relay Control Module has lost communication with the Combination Switch Control Unit. Common causes include Faulty Relay Control Module, Faulty Combination Switch Control Unit, Wiring or connection issues between the modules. 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
B1063 Acura indicates Relay Control Module Lost Communication With Combination Switch Control Unit.
Common causes
Common causes include Faulty Relay Control Module, Faulty Combination Switch Control Unit, Wiring or connection issues between the modules.
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.
Table of contents Created and updated by William Orellana on Sep 11, 2024
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Code B1063 Acura Description

The B1063 diagnostic trouble code for Acura vehicles indicates that the Relay Control Module has lost communication with the Combination Switch Control Unit. The Relay Control Module is responsible for controlling various relays in the vehicle, while the Combination Switch Control Unit manages functions such as turn signals, headlights, and windshield wipers. When these two modules fail to communicate effectively, it can lead to a range of issues affecting the vehicle's overall performance and safety.

OBDII Code B1063 Acura - Relay Control Module Lost Communication With Combination Switch Control Unit
B1063 Acura Code - Relay Control Module Lost Communication With Combination Switch Control Unit

Common Causes of B1063 Acura

  1. Faulty Relay Control Module
  2. Faulty Combination Switch Control Unit
  3. Wiring or connection issues between the modules
  4. Corrosion or damage to electrical connectors
  5. Software or programming issues within the modules

Symptoms of B1063 Acura

  1. Malfunctioning turn signals
  2. Inoperative headlights
  3. Non-responsive windshield wipers
  4. Dashboard warning lights illuminated
  5. Loss of control over various vehicle functions

How to Fix B1063 Acura

  1. Diagnostic Testing: Use a diagnostic scanner to retrieve the specific fault codes and pinpoint the exact cause of the communication issue.
  2. Inspect Wiring and Connections: Check the wiring harness and connectors between the Relay Control Module and Combination Switch Control Unit for any signs of damage or corrosion.
  3. Replace Faulty Modules: If either the Relay Control Module or Combination Switch Control Unit is found to be faulty, they will need to be replaced with new units.
  4. Resetting Modules: After replacing the modules, perform a reset procedure to reestablish communication between the modules and ensure proper functionality.
  5. Clear Codes: Clear the diagnostic trouble codes from the vehicle's system using the diagnostic scanner to reset the warning lights on the dashboard.

Cost to Fix B1063 Acura

The cost estimate for resolving the B1063 code can vary depending on the specific cause of the communication issue and the parts that need to be replaced. In general, the cost of replacing a Relay Control Module or Combination Switch Control Unit can range from $200 to $500 for parts alone. Labor costs can add an additional $100 to $200, bringing the total repair cost to approximately $300 to $700. It is important to note that these are rough estimates, and actual repair costs may vary based on factors such as location, vehicle make and model, and labor rates at auto repair shops. It is advisable to obtain quotes from local auto repair shops to get a more accurate cost estimate for addressing the B1063 code on your Acura vehicle.

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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 B1063 Acura Code

1. What are the common symptoms of OBDII code B1063 in an Acura?

The common symptoms of OBDII code B1063 in an Acura include non-functional turn signals, malfunctioning wipers, and issues with other control modules.

2. What can cause the Relay Control Module to lose communication with the Combination Switch Control Unit in an Acura?

Possible causes for the Relay Control Module losing communication with the Combination Switch Control Unit in an Acura include wiring issues, a faulty relay control module, or a malfunctioning combination switch control unit.

3. How can I diagnose the source of the communication issue between the Relay Control Module and Combination Switch Control Unit in my Acura?

To diagnose the communication issue, you can start by checking the wiring connections between the relay control module and combination switch control unit. You can also use an OBDII scanner to retrieve the specific fault codes and further pinpoint the problem.

4. Can I repair the communication issue between the Relay Control Module and Combination Switch Control Unit in my Acura myself?

If you have experience with automotive electrical systems and access to the necessary tools, you may be able to repair the communication issue yourself. However, if you are unsure or uncomfortable working on these components, it is best to seek professional help.

5. Is it safe to continue driving my Acura with OBDII code B1063 present?

It is not recommended to continue driving your Acura with OBDII code B1063 present, as it can lead to further electrical issues and potentially compromise the safety systems of your vehicle.

6. Will resetting the OBDII code B1063 in my Acura make the communication issue disappear?

Resetting the OBDII code may temporarily clear the fault code, but if the underlying communication issue between the Relay Control Module and Combination Switch Control Unit is not addressed, the code is likely to reappear.

7. How much does it typically cost to repair the communication issue related to code B1063 in an Acura?

The cost of repairing the communication issue related to code B1063 in an Acura can vary depending on the specific cause of the problem and the labor rates of the repair shop. It is advisable to get a diagnostic assessment to determine the exact cost.

8. Can a faulty battery or alternator cause OBDII code B1063 to appear in an Acura?

While a faulty battery or alternator can potentially cause electrical issues in a vehicle, they are not typically direct causes of OBDII code B1063. It is best to focus on diagnosing the communication problem between the relay control module and combination switch control unit.

9. Will replacing the Combination Switch Control Unit solve the communication issue with the Relay Control Module in an Acura?

Replacing the Combination Switch Control Unit may resolve the communication issue with the Relay Control Module in some cases. However, it is essential to diagnose the problem accurately to avoid unnecessary part replacements.

10. How long does it take to repair the communication issue related to code B1063 in an Acura?

The repair time for addressing the communication issue related to code B1063 in an Acura can vary depending on the complexity of the problem and the availability of parts. It is advisable to consult with a professional technician for a more accurate estimate.

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