AutoCodes – Toyota – B19A1 Toyota

B19A1 Toyota Code - Open 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: B19A1 Toyota indicates Open 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 1,009

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 02, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B19A1 Toyota 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 B19A1 Toyota - Open In Front Active Headrest Squib RH Circuit - AutoCodes.com — B19A1 Toyota Code - Open In Front Active Headrest Squib RH Circuit

What does this mean?

What are the Possible Causes of the DTC B19A1 Toyota?

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 B19A1 Toyota?

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 B19A1 Toyota 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 B19A1 Toyota code?

Need more information on how to fix the B19A1 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B19A1 Toyota 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 B19A1 Toyota Code

1. What are the common symptoms of an open circuit in the front active headrest squib RH circuit (OBDII code B19A1) in a Toyota?

The common symptoms include an illuminated airbag warning light on the dashboard, inoperative front active headrest system, and a stored diagnostic trouble code B19A1.

2. What are the possible causes of an open circuit in the front active headrest squib RH circuit in a Toyota?

Possible causes include damaged wiring or connectors in the circuit, a faulty front active headrest squib RH unit, or issues with the airbag control module.

3. How can I diagnose an open circuit in the front active headrest squib RH circuit in my Toyota?

Diagnosis typically involves using a scan tool to retrieve the OBDII code B19A1, inspecting the wiring and connectors for damage, and testing the front active headrest squib RH unit for continuity.

4. Can I repair an open circuit in the front active headrest squib RH circuit in my Toyota on my own?

If you have experience working with automotive electrical systems, you may be able to repair the open circuit yourself by identifying and fixing the damaged wiring or connectors. However, it's recommended to seek professional assistance for accurate diagnosis and repair.

5. Is it safe to drive my Toyota with the OBDII code B19A1 related to an open circuit in the front active headrest squib RH circuit?

It is not recommended to drive the vehicle with unresolved airbag system issues, as the front active headrest system may not deploy properly in the event of a collision. Have the issue diagnosed and repaired promptly.

6. How much does it typically cost to repair an open circuit in the front active headrest squib RH circuit in a Toyota?

The cost of repairs can vary depending on the exact cause of the issue, labor rates in your area, and whether any components need to be replaced. It's advisable to obtain quotes from reputable automotive shops for an accurate estimate.

7. Can a DIY enthusiast reset the OBDII code B19A1 related to an open circuit in the front active headrest squib RH circuit?

Resetting the code may temporarily turn off the warning light, but it will not fix the underlying issue causing the fault code. It's essential to address the root cause of the problem to ensure the safety and functionality of the airbag system.

8. How long does it typically take to repair an open circuit in the front active headrest squib RH circuit?

The repair time can vary depending on the complexity of the issue, availability of parts, and the expertise of the technician. In some cases, repairs can be completed within a few hours, while more extensive issues may take longer.

9. Are there any recalls or service bulletins related to the OBDII code B19A1 in Toyota vehicles?

It's advisable to check with a Toyota dealership or reputable automotive sources to see if there are any recalls or service bulletins related to the specific OBDII code B19A1 and the front active headrest squib RH circuit in your vehicle.

10. Can an open circuit in the front active headrest squib RH circuit cause other safety systems in the vehicle to malfunction?

While the primary impact of an open circuit in this specific circuit is related to the front active headrest system, it's essential to address the issue promptly to ensure the overall integrity of the vehicle's safety systems, including the airbag system.