AutoCodes – Acura – B1279 Acura

B1279 Acura Code - Dimmer Switch Circuit Malfunction

Quick Answer

The Multiplex Integrated Control Unit (MICU) monitors the Dimmer Switch. Common causes include Faulty Dimmer Switch, Dimmer Switch harness is open or shorted, Dimmer Switch circuit poor electrical connection. Severity is Low - monitor the vehicle and repair when practical. The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

What it means: B1279 Acura indicates Dimmer Switch Circuit Malfunction.
Common causes: Common causes include Faulty Dimmer Switch, Dimmer Switch harness is open or shorted, Dimmer Switch circuit poor electrical connection.
Severity: Low - monitor the vehicle and repair when practical.
Can I drive?: The vehicle can usually be driven if no severe symptoms are present, but symptoms should be checked before extended driving.

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Code Popularity 989

How popular is this code, among other codes? Low

Repair Importance Level

Low (Monitor) (1 / 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 B1279 Acura Description

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

OBDII Code B1279 Acura - Dimmer Switch Circuit Malfunction - AutoCodes.com — B1279 Acura Code - Dimmer Switch Circuit Malfunction

What does this mean?

What are the Possible Causes of the DTC B1279 Acura?

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

How to Fix the DTC B1279 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 B1279 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 B1279 Acura code?

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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 B1279 Acura Code

1. What are common symptoms of OBDII code B1279 in an Acura related to the dimmer switch circuit malfunction?

- Common symptoms include issues with adjusting the brightness of the instrument panel lights, erratic behavior of the dimmer switch, or complete failure of the dimmer function.

2. What are the potential causes of OBDII code B1279 in an Acura?

- Causes may include a faulty dimmer switch, damaged wiring or connectors in the dimmer circuit, or a malfunctioning instrument cluster.

3. How can I diagnose the dimmer switch circuit malfunction in my Acura triggering OBDII code B1279?

- You can use a multimeter to test the continuity of the dimmer switch, inspect the wiring for any visible damage, and check for any loose connections in the circuit.

4. Can I still drive my Acura with OBDII code B1279 related to the dimmer switch circuit malfunction?

- It is generally safe to drive your vehicle with this code, but it is recommended to address the underlying issue promptly to ensure proper functioning of the instrument panel lights.

5. Is it easy to repair the dimmer switch circuit malfunction causing OBDII code B1279 in an Acura?

- The repair difficulty can vary depending on the exact cause of the issue. Replacing a faulty dimmer switch or repairing damaged wiring are common solutions that can be relatively straightforward.

6. Will resetting the OBDII code B1279 in my Acura make the problem go away?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying issue causing the dimmer switch circuit malfunction. Proper diagnosis and repair are necessary.

7. Can a DIY enthusiast fix the dimmer switch circuit malfunction causing OBDII code B1279 in an Acura?

- Depending on your experience and comfort level with automotive repairs, some DIY enthusiasts may be able to diagnose and fix the issue themselves. However, professional assistance is recommended if unsure.

8. Are there any preventive measures to avoid OBDII code B1279 related to the dimmer switch circuit malfunction in my Acura?

- Regularly checking the functionality of the dimmer switch, inspecting the wiring for any signs of wear, and addressing any issues promptly can help prevent this code from occurring.

9. How long does it typically take to repair the dimmer switch circuit malfunction causing OBDII code B1279 in an Acura?

- The repair time can vary depending on the exact cause of the issue and the expertise of the technician. It can range from a quick fix to a more involved repair that may take some time.

10. Will a dimmer switch circuit malfunction causing OBDII code B1279 affect the overall performance of my Acura?

- This issue is more related to the functionality of the instrument panel lights and may not directly impact the overall performance of the vehicle. However, it is still important to address the problem for safety and convenience.