AutoCodes – Toyota – B124A 2014 Toyota RAV4

B124A 2014 Toyota RAV4 Code - Automatic High Beam Mirror

Quick Answer

This Diagnostic Trouble Code (DTC) is stored when the Main Body ECU (Multiplex Network Body ECU) detects a malfunction in the Lane Departure Warning Camera. Common causes include Faulty Lane Departure Warning Camera, Lane Departure Warning Camera harness is open or shorted, Lane Departure Warning Camera 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: B124A 2014 Toyota RAV4 indicates Automatic High Beam Mirror.
Common causes: Common causes include Faulty Lane Departure Warning Camera, Lane Departure Warning Camera harness is open or shorted, Lane Departure Warning Camera 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 476

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 19, 2024

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code B124A 2014 Toyota RAV4 Description

This Diagnostic Trouble Code (DTC) is stored when the Main Body ECU (Multiplex Network Body ECU) detects a malfunction in the Lane Departure Warning Camera.

OBDII Code B124A 2014 Toyota RAV4 - Automatic High Beam Mirror - AutoCodes.com — B124A 2014 Toyota RAV4 Code - Automatic High Beam Mirror

What does this mean?

What are the Possible Causes of the DTC B124A 2014 Toyota RAV4?

Faulty Lane Departure Warning Camera
Lane Departure Warning Camera harness is open or shorted
Lane Departure Warning Camera circuit poor electrical connection
Faulty Main Body ECU (Multiplex Network Body ECU)

How to Fix the DTC B124A 2014 Toyota RAV4?

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 does this mean?

Code Tech Notes

When replacing the Lane Departure Warning Camera, always replace it with a new one. If a forward recognition camera that was installed on another vehicle is used, the information stored in the forward recognition camera will not match the information from the vehicle. As a result, a DTC may be stored.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B124A 2014 Toyota RAV4 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 B124A 2014 Toyota RAV4 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 B124A 2014 Toyota RAV4 Code

1. What does OBDII code B124A on a 2014 Toyota RAV4 indicate?

The B124A code on a 2014 Toyota RAV4 specifically relates to the Automatic High Beam Mirror system.

2. What are some common symptoms of OBDII code B124A on a 2014 Toyota RAV4?

Common symptoms of the B124A code may include issues with the automatic high beam function not operating properly, such as the high beams not turning on or staying on consistently.

3. What are some possible causes of OBDII code B124A on a 2014 Toyota RAV4?

Potential causes of the B124A code could include faulty sensors related to the automatic high beam mirror system, wiring issues, or a malfunction within the mirror assembly itself.

4. How can I diagnose the OBDII code B124A on my 2014 Toyota RAV4?

To diagnose the B124A code, it is recommended to use a diagnostic scanner to retrieve the specific fault codes and then further investigate the automatic high beam mirror components for any visible signs of damage or malfunction.

5. Are there any DIY repair tips for resolving OBDII code B124A on a 2014 Toyota RAV4?

While some basic troubleshooting like checking for loose connections or damaged wiring may be possible, resolving the B124A code typically requires advanced diagnostic equipment and expertise, so it is advisable to consult a professional mechanic.

6. Can OBDII code B124A on a 2014 Toyota RAV4 be fixed at home?

Fixing the B124A code at home may be challenging due to the specialized nature of the automatic high beam mirror system. It is best to have a qualified technician diagnose and repair the issue.

7. Is it safe to continue driving with OBDII code B124A on a 2014 Toyota RAV4?

Driving with the B124A code present may not directly impact the vehicle's drivability, but it could affect the functionality of the automatic high beam system, so it is recommended to address the issue promptly.

8. How much does it cost to repair OBDII code B124A on a 2014 Toyota RAV4?

The cost of repairing the B124A code can vary depending on the exact cause of the issue, parts needed for replacement, and labor rates. It is advisable to obtain quotes from reputable repair shops.

9. Can resetting the OBDII system clear the B124A code on a 2014 Toyota RAV4?

While resetting the OBDII system may temporarily clear the code, it is likely to return if the underlying issue with the automatic high beam mirror system is not addressed.

10. Is the OBDII code B124A specific to 2014 Toyota RAV4 models only?

Yes, the B124A code is specific to the 2014 Toyota RAV4 and is related to the Automatic High Beam Mirror system installed in this particular model year.