B2412 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 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.
Code B2412 Description
What are the Possible Causes of the DTC B2412?
- 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?
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 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 B2412 code?
Need more information on how to fix the B2412 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B2412 code diagnosed by a professional: Find a repair shop in your area
Information for Specific Makes
- B2412 Lexus — Headlight Swivel Motor Left Malfunction
- B2412 Scion — Headlight Swivel Motor Left Malfunction
- B2412 Toyota — Headlight Swivel Motor Left Malfunction
Frequently Asked Questions about B2412 Code
1. What are the common symptoms of OBDII code B2412 (Headlight Swivel Motor Left Malfunction)?
- Common symptoms include the headlight swivel motor on the left side not functioning properly, leading to misaligned or erratic movement of the headlight.
2. What are the possible causes of OBDII code B2412?
- The code can be triggered by a faulty headlight swivel motor, damaged wiring harness, blown fuse, or a problem with the headlight control module.
3. How can I diagnose the cause of OBDII code B2412?
- To diagnose the issue, you can perform a visual inspection of the headlight swivel motor and its connections, test the wiring harness for continuity, and use a diagnostic scanner to read the trouble codes.
4. Can I still drive my vehicle with OBDII code B2412 present?
- It is not recommended to drive with this code active, as it can affect the proper functioning of your headlights, potentially reducing visibility and safety while driving at night.
5. How can I repair OBDII code B2412?
- Repair options include replacing the headlight swivel motor, repairing or replacing damaged wiring, checking and replacing fuses if necessary, or addressing any issues with the headlight control module.
6. Are there any DIY tips for fixing OBDII code B2412?
- While some basic troubleshooting and visual inspections can be done by DIY enthusiasts, it is recommended to seek professional help when dealing with headlight swivel motor malfunctions to ensure proper repair and alignment.
7. How much does it cost to repair OBDII code B2412?
- The cost of repair can vary depending on the specific cause of the issue, the labor rates in your area, and the cost of parts needed for the repair. It's best to get a few quotes from different mechanics to compare prices.
8. Can OBDII code B2412 be a false alarm?
- While it is possible for a code to be triggered falsely due to temporary glitches, it is important to address the issue promptly to ensure the proper functioning of your vehicle's headlights.
9. Is it necessary to reset the OBDII system after repairing OBDII code B2412?
- Yes, it is recommended to reset the OBDII system after making any repairs to clear the trouble code and ensure that the issue has been resolved. This can be done using a diagnostic scanner or by disconnecting the battery for a few minutes.
10. How can I prevent OBDII code B2412 from recurring in the future?
- Regular maintenance of your vehicle's lighting system, including checking for any signs of wear or damage to the headlight swivel motor and its components, can help prevent the recurrence of this code.
Discuss the causes and fixes for B2412 OBDII Code
Code B2412 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
