AutoCodes – Toyota – B124B 2016 Toyota RAV4

B124B 2016 Toyota RAV4 Code - Automatic High Beam System

Quick Answer

This Diagnostic Trouble Code (DTC) is stored when the Main Body ECU (Multiplex Network Body ECU) detects a malfunction in the Forward Recognition Camera. Common causes include Faulty Forward Recognition Camera, Forward Recognition Camera harness is open or shorted, Forward Recognition 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: B124B 2016 Toyota RAV4 indicates Automatic High Beam System.
Common causes: Common causes include Faulty Forward Recognition Camera, Forward Recognition Camera harness is open or shorted, Forward Recognition 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 396

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
Cost to Diagnose
FAQs
Comments
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Code B124B 2016 Toyota RAV4 Description

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

OBDII Code B124B 2016 Toyota RAV4 - Automatic High Beam System - AutoCodes.com — B124B 2016 Toyota RAV4 Code - Automatic High Beam System

What does this mean?

What are the Possible Causes of the DTC B124B 2016 Toyota RAV4?

Faulty Forward Recognition Camera
Forward Recognition Camera harness is open or shorted
Forward Recognition Camera circuit poor electrical connection
Faulty Main Body ECU (Multiplex Network Body ECU)

How to Fix the DTC B124B 2016 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B124B 2016 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 B124B 2016 Toyota RAV4 code?

Need more information on how to fix the B124B 2016 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B124B 2016 Toyota RAV4 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 B124B 2016 Toyota RAV4 Code

1. What does OBDII code B124B mean on a 2016 Toyota RAV4 related to the Automatic High Beam System?

- OBDII code B124B in a 2016 Toyota RAV4 indicates a malfunction in the Automatic High Beam System.

2. What are the common symptoms of OBDII code B124B in a 2016 Toyota RAV4?

- Common symptoms of OBDII code B124B in a 2016 Toyota RAV4 may include issues with the automatic high beam function, such as failure to activate or deactivate properly.

3. What are some possible causes of OBDII code B124B in a 2016 Toyota RAV4?

- Possible causes of OBDII code B124B in a 2016 Toyota RAV4 may include faulty sensors, wiring issues, a malfunctioning control module, or a problem with the high beam assist camera.

4. How can I diagnose OBDII code B124B in a 2016 Toyota RAV4 related to the Automatic High Beam System?

- Diagnosing OBDII code B124B in a 2016 Toyota RAV4 typically involves using an OBDII scanner to retrieve the trouble code and then conducting a thorough inspection of the automatic high beam system components.

5. Is it safe to continue driving with OBDII code B124B in a 2016 Toyota RAV4?

- It is generally not recommended to continue driving with OBDII code B124B in a 2016 Toyota RAV4, as it can affect the proper functioning of the Automatic High Beam System, compromising visibility and safety.

6. Can I repair OBDII code B124B in a 2016 Toyota RAV4 on my own?

- Repairing OBDII code B124B in a 2016 Toyota RAV4 may require advanced diagnostic tools and expertise. It is recommended to consult a qualified mechanic or dealership for proper diagnosis and repair.

7. How much does it cost to fix OBDII code B124B in a 2016 Toyota RAV4?

- The cost to fix OBDII code B124B in a 2016 Toyota RAV4 can vary depending on the underlying cause of the issue. Repairs may involve replacing sensors, repairing wiring, or addressing other system components.

8. Can resetting the OBDII system clear code B124B in a 2016 Toyota RAV4?

- Resetting the OBDII system may temporarily clear code B124B in a 2016 Toyota RAV4, but if the underlying issue is not addressed, the code is likely to reappear. It is important to diagnose and fix the root cause of the problem.

9. Will OBDII code B124B cause my 2016 Toyota RAV4 to fail an emissions test?

- OBDII code B124B related to the Automatic High Beam System is not directly related to emissions, so it should not cause your 2016 Toyota RAV4 to fail an emissions test.

10. How can I prevent OBDII code B124B from appearing in my 2016 Toyota RAV4 in the future?

- To prevent OBDII code B124B from appearing in your 2016 Toyota RAV4, it is essential to maintain the Automatic High Beam System components properly, address any issues promptly, and follow the manufacturer's recommended maintenance schedule.