AutoCodes – Acura – B1252 Acura

B1252 Acura Code - Combination Switch Control Unit Internal Error

Quick Answer

The Multiplex Integrated Control Unit (MICU) monitors the Combination Switch Control Unit. Common causes include Faulty Combination Switch Control Unit, Combination Switch Control Unit harness is open or shorted, Combination Switch Control Unit circuit poor electrical connection. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

What it means: B1252 Acura indicates Combination Switch Control Unit Internal Error.
Common causes: Common causes include Faulty Combination Switch Control Unit, Combination Switch Control Unit harness is open or shorted, Combination Switch Control Unit circuit poor electrical connection.
Severity: Moderate - service should be scheduled soon.
Can I drive?: The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.

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Code Popularity 1,107

How popular is this code, among other codes? Low

Repair Importance Level

Moderate (Service soon) (2 / 3)

Repair Difficulty Level

Intermediate (2 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 29, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1252 Acura Description

The Multiplex Integrated Control Unit (MICU) monitors the Combination Switch Control Unit. The MICU sets the OBDII code when the Combination Switch Control Unit is not to factory specifications.

OBDII Code B1252 Acura - Combination Switch Control Unit Internal Error - AutoCodes.com — B1252 Acura Code - Combination Switch Control Unit Internal Error

What does this mean?

What are the Possible Causes of the DTC B1252 Acura?

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

How to Fix the DTC B1252 Acura?

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 B1252 Acura 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 B1252 Acura code?

Need more information on how to fix the B1252 Acura code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1252 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 B1252 Acura Code

1. What are the common symptoms of OBDII code B1252 in an Acura related to the Combination Switch Control Unit Internal Error?

- Common symptoms include non-functional turn signals, issues with the windshield wipers, and problems with other vehicle controls operated by the combination switch.

2. What causes the OBDII code B1252 Acura Combination Switch Control Unit Internal Error?

- The code B1252 typically indicates an internal error within the combination switch control unit, which could be due to wiring issues, a faulty switch, or a malfunction in the control unit itself.

3. How can I diagnose the OBDII code B1252 in my Acura?

- Diagnosis involves using an OBDII scanner to retrieve the specific fault code, inspecting the wiring connected to the combination switch, and testing the switch and control unit for proper functionality.

4. Can I still drive my Acura with the B1252 code present?

- It is not recommended to drive your vehicle with the B1252 code present, as it could affect critical functions like turn signals and wipers, compromising safety on the road.

5. How can I repair the B1252 code related to the Combination Switch Control Unit Internal Error in my Acura?

- Repair options include repairing or replacing any damaged wiring, replacing the combination switch if faulty, or replacing the entire control unit if necessary.

6. Can resetting the OBDII code B1252 on my Acura fix the issue temporarily?

- Resetting the code may temporarily clear the error, but if the underlying issue causing the B1252 code is not addressed, it is likely to reappear.

7. Are there any DIY tips for troubleshooting and fixing the B1252 code on an Acura?

- DIY tips include checking for loose or damaged wiring, ensuring proper connections to the combination switch, and testing the switch functionality using a multimeter.

8. How long does it typically take to repair the OBDII code B1252 Acura Combination Switch Control Unit Internal Error?

- The repair time can vary depending on the exact cause of the issue, but it may take anywhere from a few hours to a full day to diagnose and fix the problem.

9. Are there any recalls or technical service bulletins related to the B1252 code in Acura vehicles?

- It's recommended to check with your local Acura dealership or visit the official Acura website to see if there are any relevant recalls or technical service bulletins related to the B1252 code.

10. Is it necessary to visit a professional mechanic to repair the B1252 code in my Acura, or can I fix it myself?

- While some DIY enthusiasts may be able to address the issue themselves, it is generally recommended to seek the expertise of a professional mechanic to properly diagnose and repair the B1252 code in your Acura.