AutoCodes – Lexus – B19A0 Lexus

B19A0 Lexus Code - Short In Front Active Headrest Squib RH Circuit

Quick Answer

The Front Active Headrest Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and the Active Headrest Inflator RH. Common causes include Faulty Active Headrest Inflator Assembly Right (RH) (Front Active Headrest Squib RH), Active Headrest Inflator Assembly Right (RH) harness is open or shorted, Active Headrest Inflator Assembly Right (RH) 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: B19A0 Lexus indicates Short In Front Active Headrest Squib RH Circuit.
Common causes: Common causes include Faulty Active Headrest Inflator Assembly Right (RH) (Front Active Headrest Squib RH), Active Headrest Inflator Assembly Right (RH) harness is open or shorted, Active Headrest Inflator Assembly Right (RH) 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.

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Code Popularity 652

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 03, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B19A0 Lexus Description

The Front Active Headrest Squib Right (RH) Circuit consists of the Center Airbag Sensor Assembly and the Active Headrest Inflator RH. This circuit instructs the Supplemental Restraint System (SRS) to deploy when deployment conditions are met. The Diagnostic Trouble Code (DTC) is recorded when a malfunction is detected in the Front Active Headrest Squib RH Circuit.

OBDII Code B19A0 Lexus - Short In Front Active Headrest Squib RH Circuit - AutoCodes.com — B19A0 Lexus Code - Short In Front Active Headrest Squib RH Circuit

What does this mean?

What are the Possible Causes of the DTC B19A0 Lexus?

Faulty Active Headrest Inflator Assembly Right (RH) (Front Active Headrest Squib RH)
Active Headrest Inflator Assembly Right (RH) harness is open or shorted
Active Headrest Inflator Assembly Right (RH) circuit poor electrical connection
Faulty Center Airbag Sensor Assembly

How to Fix the DTC B19A0 Lexus?

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 B19A0 Lexus 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 B19A0 Lexus code?

Need more information on how to fix the B19A0 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B19A0 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 B19A0 Lexus Code

1. What are the common symptoms of OBDII code B19A0 in a Lexus related to a short in the front active headrest squib RH circuit?

- Common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the front active headrest system.

2. What are some possible causes of the B19A0 code indicating a short in the front active headrest squib RH circuit in a Lexus?

- Causes may include damaged wiring, a faulty squib (igniter), a loose connection, or a malfunctioning headrest mechanism.

3. How can I diagnose the OBDII code B19A0 related to the front active headrest squib RH circuit in my Lexus?

- Diagnosis typically involves using a diagnostic scanner to retrieve the specific trouble code, inspecting the wiring and connections, and testing the components of the active headrest system.

4. Is it safe to continue driving my Lexus with the B19A0 trouble code indicating a short in the front active headrest squib RH circuit?

- It is recommended to address the issue promptly to ensure the proper functionality of the airbag system and overall safety of the vehicle occupants.

5. What are some repair tips for resolving the B19A0 code related to the front active headrest squib RH circuit issue in a Lexus?

- Repair tips may include checking and repairing any damaged wiring, ensuring all connections are secure, replacing a faulty squib or headrest component if necessary, and clearing the trouble code with a diagnostic tool.

6. Can I fix the B19A0 trouble code indicating a short in the front active headrest squib RH circuit in my Lexus myself, or should I seek professional help?

- Depending on your experience and comfort level with automotive repairs, you may be able to address the issue yourself by following repair guides and using the necessary tools. However, if unsure, it's recommended to consult a professional mechanic.

7. Are there any recalls or service bulletins related to the OBDII code B19A0 in Lexus vehicles for the front active headrest squib RH circuit?

- It's advisable to check with a Lexus dealership or online resources for any existing recalls or service bulletins pertaining to this specific code to see if there are any related issues covered under warranty.

8. How much can I expect to pay for repairing the B19A0 code indicating a short in the front active headrest squib RH circuit in my Lexus?

- Repair costs can vary depending on the extent of the issue, parts needed, and labor rates. It's recommended to obtain quotes from different repair shops or dealerships to compare prices.

9. Will resetting the OBDII code B19A0 related to the front active headrest squib RH circuit in my Lexus solve the underlying issue?

- Resetting the code may temporarily clear the warning light, but it's crucial to address the root cause of the problem to ensure the safety systems are functioning correctly.

10. Can the B19A0 trouble code in a Lexus be triggered by other factors besides a short in the front active headrest squib RH circuit?

- While the B19A0 code typically points to a specific issue with the front active headrest system, it's essential to perform thorough diagnostics to rule out any other potential factors causing the code to appear.