AutoCodesScion – B2412 Scion

B2412 Scion Code - Headlight Swivel Motor Left Malfunction

Quick Answer

The headlight swivel motor receives a signal from the Adaptive Front-lighting System (AFS) ECU to operate and sends a signal indicating the direction of the headlight and condition of the Headlight Swivel Motor to the AFS ECU. Common causes include Faulty Headlight Swivel Motor Left, Headlight Swivel Motor Left harness is open or shorted, Headlight Swivel Motor Left circuit poor electrical connection. 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
B2412 Scion indicates Headlight Swivel Motor Left Malfunction.
Common causes
Common causes include Faulty Headlight Swivel Motor Left, Headlight Swivel Motor Left harness is open or shorted, Headlight Swivel Motor Left circuit poor electrical connection.
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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 645
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Dec 08, 2019
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Code B2412 Scion Description

The headlight swivel motor receives a signal from the Adaptive Front-lighting System (AFS) ECU to operate and sends a signal indicating the direction of the headlight and condition of the Headlight Swivel Motor to the AFS ECU. The Diagnostic Trouble Code (DTC) is stored when a malfunction is detected in Headlight Swivel Motor Left.
OBDII Code B2412 Scion - Headlight Swivel Motor Left Malfunction - AutoCodes.com
B2412 Scion Code - Headlight Swivel Motor Left Malfunction

What are the Possible Causes of the DTC B2412 Scion?

  • Faulty Headlight Swivel Motor Left
  • Headlight Swivel Motor Left harness is open or shorted
  • Headlight Swivel Motor Left circuit poor electrical connection
  • Faulty Adaptive Front-lighting System (AFS) ECU

How to Fix the DTC B2412 Scion?

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 B2412 Scion 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.

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Need Help with the 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 B2412 Scion Code

1. What does the OBDII code B2412 mean on a Scion?

The B2412 code indicates a malfunction in the left headlight swivel motor, which controls the adaptive movement of the headlight beam.

2. What are the common symptoms of a B2412 code?

Symptoms include a non-functional adaptive headlight system, the left headlight beam not swiveling as intended, and possibly a warning light on the dashboard.

3. What causes the B2412 code to appear?

Common causes include a faulty left headlight swivel motor, damaged wiring or connectors, or a malfunctioning headlight control module.

4. Can I still drive my Scion with a B2412 code?

Yes, but the adaptive headlight feature may not work properly, which could reduce visibility during cornering or in low-light conditions.

5. How is the B2412 code diagnosed?

A technician will inspect the left headlight swivel motor, check for damaged wiring or connectors, and use a scan tool to confirm the code and test the headlight control system.

6. How can I fix the B2412 code on my Scion?

Repairs may involve replacing the left headlight swivel motor, repairing damaged wiring or connectors, or reprogramming or replacing the headlight control module.

7. How much does it cost to repair a B2412 code?

The cost can vary, but replacing the headlight swivel motor may cost $200–$500, depending on labor rates and parts prices.

8. Can I reset the B2412 code without fixing the issue?

While you can clear the code with a scan tool, it will likely return unless the underlying issue is resolved.

9. Is the B2412 code specific to Scion vehicles?

No, the B2412 code can appear on other vehicles with adaptive headlights, but the diagnosis and repair process may vary.

10. What happens if I ignore the B2412 code?

Ignoring the code could lead to reduced visibility and safety risks, especially during night driving or in poor weather conditions.

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