Engine-Codes.com
Engine-Codes – Lexus – B19A6 Lexus

B19A6 Lexus Code - Open In Front Active Headrest Squib LH Circuit

Quick Answer

The B19A6 diagnostic trouble code (DTC) for Lexus vehicles indicates an open circuit in the front active headrest squib LH circuit. Common causes include Damaged wiring or connectors in the front active headrest squib LH circuit, Faulty front active headrest squib LH unit, Corrosion in the electrical connections. 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
B19A6 Lexus indicates Open In Front Active Headrest Squib LH Circuit.
Common causes
Common causes include Damaged wiring or connectors in the front active headrest squib LH circuit, Faulty front active headrest squib LH unit, Corrosion in the electrical connections.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B19A6 Lexus Description

The B19A6 diagnostic trouble code (DTC) for Lexus vehicles indicates an open circuit in the front active headrest squib LH circuit. The front active headrest squib is a safety component that deploys the headrest in the event of a collision to reduce the risk of whiplash injuries. When there is an open circuit in this system, it means that there is a break in the electrical connection that prevents the squib from functioning properly.

OBDII Code B19A6 Lexus - Open In Front Active Headrest Squib LH Circuit
B19A6 Lexus Code - Open In Front Active Headrest Squib LH Circuit

Common Causes of B19A6 Lexus

  1. Damaged wiring or connectors in the front active headrest squib LH circuit
  2. Faulty front active headrest squib LH unit
  3. Corrosion in the electrical connections
  4. Impact damage to the headrest system from a previous collision
  5. Manufacturing defect in the headrest squib unit

Symptoms of B19A6 Lexus

  1. Airbag warning light illuminated on the dashboard
  2. Inoperative front active headrest system
  3. Headrest does not deploy during a collision
  4. Vehicle fails safety inspection due to malfunctioning safety system

How to Fix B19A6 Lexus

  1. Begin by diagnosing the specific cause of the open circuit, using a multimeter to test the continuity of the wiring and connectors.
  2. Replace any damaged wiring or connectors in the front active headrest squib LH circuit.
  3. If the issue lies with the front active headrest squib LH unit, replace the faulty component with a new one.
  4. Inspect and clean the electrical connections to remove any corrosion that may be causing the open circuit.
  5. Test the system after repair to ensure that the front active headrest squib LH circuit is functioning properly.

Cost to Fix B19A6 Lexus

The cost of repairing an open in front active headrest squib LH circuit can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the parts for this repair can range from $100 to $300, while the labor costs can range from $150 to $300. Overall, the total cost of the repair may fall between $250 to $600. It is advisable to consult with a qualified mechanic or dealership for an accurate cost estimate based on the specific circumstances of your vehicle. Keep in mind that labor rates and part prices can vary based on location and other factors.

Need more information about the B19A6 Lexus code?

Need more information on how to fix the B19A6 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B19A6 Lexus code diagnosed by a professional: Find a repair shop in your area

Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service

  • Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
  • Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
  • Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
  • Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.

Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.

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 B19A6 Lexus Code

1. What are the common symptoms of OBDII code B19A6 in a Lexus related to the "Open In Front Active Headrest Squib LH Circuit"?

- Common symptoms include a malfunctioning or non-deploying active headrest on the driver's side.

2. What are the potential causes of the OBDII code B19A6 in a Lexus?

- The code is typically triggered by an open circuit in the front active headrest squib LH circuit, which could be due to wiring issues or a faulty component.

3. How can I diagnose the root cause of OBDII code B19A6 in my Lexus?

- Diagnosis involves inspecting the wiring harness for any damage, checking the connectors for proper connection, and testing the front active headrest squib LH circuit for continuity.

4. Can I repair the "Open In Front Active Headrest Squib LH Circuit" issue in my Lexus by myself?

- If you have experience working with automotive electrical systems, you may be able to repair the issue yourself by addressing any wiring faults or replacing the faulty component.

5. Is it safe to drive my Lexus with OBDII code B19A6 present?

- It is not recommended to drive the vehicle with this code active, as the active headrest may not deploy properly in the event of a collision, compromising occupant safety.

6. How much does it typically cost to repair the "Open In Front Active Headrest Squib LH Circuit" issue in a Lexus?

- The cost of repair can vary depending on the underlying cause, but it may involve replacing damaged wiring or a faulty component, which could range from a few hundred to a thousand dollars.

7. Can resetting the OBDII code B19A6 in my Lexus make the issue go away temporarily?

- Resetting the code may temporarily clear the fault, but if the root cause is not addressed, the code is likely to reappear once the issue is detected again.

8. Are there any safety implications associated with the "Open In Front Active Headrest Squib LH Circuit" issue in a Lexus?

- Yes, the active headrest system is designed to enhance occupant safety in the event of a rear-end collision, so it's important to address the issue promptly to ensure proper functionality.

9. Will the OBDII code B19A6 in my Lexus cause the airbag system to be disabled?

- The code specifically relates to the front active headrest squib LH circuit and may not directly affect the airbag system, but it's essential to address the issue to maintain overall safety systems.

10. How long does it typically take to repair the "Open In Front Active Headrest Squib LH Circuit" issue in a Lexus?

- The repair time can vary depending on the extent of the wiring or component replacement needed, but it may take a few hours to a full day for a skilled technician to complete the repair.

Discuss the causes and fixes for B19A6 Lexus OBDII Code

Submit a New Comment

Code B19A6 Lexus comments

No comments found for this page.