AutoCodes – Generic – B19A7

B19A7 Code - Short To Ground In Front Active Headrest Squib LH Circuit

Quick Answer

The Front Active Headrest Squib Left (LH) Circuit consists of the Center Airbag Sensor Assembly and the Active Headrest Inflator LH. Common causes include Faulty Active Headrest Inflator Assembly Left (LH) (Front Active Headrest Squib LH), Active Headrest Inflator Assembly Left (LH) harness is open or shorted, Active Headrest Inflator Assembly Left (LH) 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: B19A7 indicates Short To Ground In Front Active Headrest Squib LH Circuit.
Common causes: Common causes include Faulty Active Headrest Inflator Assembly Left (LH) (Front Active Headrest Squib LH), Active Headrest Inflator Assembly Left (LH) harness is open or shorted, Active Headrest Inflator Assembly Left (LH) 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 764

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
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Code B19A7 Description

The Front Active Headrest Squib Left (LH) Circuit consists of the Center Airbag Sensor Assembly and the Active Headrest Inflator LH. 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 LH Circuit.

OBDII Code B19A7 - Short To Ground In Front Active Headrest Squib LH Circuit - AutoCodes.com — B19A7 Code - Short To Ground In Front Active Headrest Squib LH Circuit

What does this mean?

What are the Possible Causes of the DTC B19A7?

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

How to Fix the DTC B19A7?

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 B19A7 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 B19A7 code?

Need more information on how to fix the B19A7 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B19A7 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

B19A7 Ford — Driver Seat Cushion Blower Speed Short To Ground
B19A7 Lexus — Short To Ground In Front Active Headrest Squib LH Circuit
B19A7 Lincoln — Driver Seat Cushion Blower Speed Short To Ground
B19A7 Mercury — Driver Seat Cushion Blower Speed Short To Ground
B19A7 Scion — Short To Ground In Front Active Headrest Squib LH Circuit
B19A7 Toyota — Short To Ground In Front Active Headrest Squib LH Circuit

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 B19A7 Code

1. What are the common symptoms of OBDII code B19A7 (Short To Ground In Front Active Headrest Squib LH Circuit)?

The common symptoms associated with this code include an illuminated airbag warning light on the dashboard, malfunctioning front active headrest system, and potential loss of power to the system.

2. What could cause OBDII code B19A7 to trigger?

The code B19A7 typically triggers due to a short to ground in the front active headrest squib LH circuit, which may be caused by damaged wiring, a faulty squib unit, or a poor electrical connection.

3. How can I diagnose the source of OBDII code B19A7?

Diagnosing the source of this code usually involves using a diagnostic scanner to retrieve the trouble codes, inspecting the wiring and connections in the front active headrest system, and testing the squib unit for proper functionality.

4. What are the potential dangers of driving with OBDII code B19A7 active?

Driving with OBDII code B19A7 active can pose a safety risk as it indicates a fault in the front active headrest system, which may result in the system not deploying properly in the event of a collision.

5. Can I repair OBDII code B19A7 on my own?

While some DIY enthusiasts may attempt to repair this code themselves, it is recommended to seek professional help due to the complexity of the airbag system and the importance of ensuring proper functionality.

6. How much does it typically cost to repair OBDII code B19A7?

The cost of repairing OBDII code B19A7 can vary depending on the underlying cause of the issue, the extent of the damage, and the labor rates of the repair shop. It is advisable to obtain quotes from multiple service providers.

7. Is it safe to drive my vehicle to a repair shop with OBDII code B19A7 present?

If you experience symptoms like an illuminated airbag warning light, it is not recommended to drive the vehicle to a repair shop as the airbag system may not function correctly. Have the vehicle towed instead.

8. Can OBDII code B19A7 be intermittent?

Yes, OBDII code B19A7 can be intermittent, meaning the fault may come and go. It is essential to address the issue promptly to ensure the proper operation of the front active headrest system.

9. Will resetting the OBDII system clear the B19A7 code?

Resetting the OBDII system may temporarily clear the B19A7 code, but if the underlying issue causing the fault is not addressed, the code is likely to return. It is crucial to diagnose and repair the problem to prevent future occurrences.

10. How long does it take to repair OBDII code B19A7?

The repair time for OBDII code B19A7 can vary depending on the specific cause of the issue and the availability of parts. In some cases, it may be a relatively quick repair, while in others, it could take longer to diagnose and fix the problem.