B19A8 Code - Short To Positive In Front Active Headrest Squib LH Circuit

Quick Answer

The diagnostic code B19A8 indicates a short to positive in the front active headrest squib LH circuit. Common causes include Wiring harness damage or chafing that causes a short to positive in the circuit, Faulty front active headrest squib LH, Corrosion or poor connections in the electrical connectors of the system. 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

B19A8 indicates Short To Positive In Front Active Headrest Squib LH Circuit.

Common causes

Common causes include Wiring harness damage or chafing that causes a short to positive in the circuit, Faulty front active headrest squib LH, Corrosion or poor connections in the electrical connectors of the system.

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.

• Description
• Common Causes
• Symptoms
• How To Fix
• Cost to Fix
• FAQs
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Common Causes of B19A8

Symptoms of B19A8

How to Fix B19A8

Cost to Fix B19A8

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Code B19A8 Information for Specific Makes

• B19A8 Chrysler — Left Power Sliding Door Control Circuit 2 Low
• B19A8 Dodge — Left Power Sliding Door Control Circuit 2 Low
• B19A8 Ford — Driver Seat Back Blower Speed Short To Ground
• B19A8 Jeep — Left Power Sliding Door Control Circuit 2 Low
• B19A8 Lexus — Short To Positive In Front Active Headrest Squib LH Circuit
• B19A8 Lincoln — Driver Seat Back Blower Speed Short To Ground
• B19A8 Mercury — Driver Seat Back Blower Speed Short To Ground
• B19A8 RAM — Left Power Sliding Door Control Circuit 2 Low
• B19A8 Scion — Short To Positive In Front Active Headrest Squib LH Circuit
• B19A8 Toyota — Short To Positive 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 B19A8 Code

What does the OBDII code B19A8 indicate?

B19A8 indicates a "Short To Positive In Front Active Headrest Squib LH Circuit," which suggests an electrical issue in the left side active headrest system.

What are the common symptoms of the B19A8 code?

Common symptoms may include the illumination of the airbag warning light, malfunctioning active headrest, or issues with the seat's electronic features.

What could cause the B19A8 code to trigger?

Causes may include a short circuit in the wiring harness, a faulty active headrest squib, or problems with the airbag control module.

How can I diagnose the B19A8 code?

Start by checking the wiring and connectors related to the left active headrest for damage or corrosion. Use a multimeter to test for proper voltage and continuity.

Can I drive my vehicle with the B19A8 code?

While you can technically drive the vehicle, it's not recommended as the airbag system may not function properly in an accident, increasing the risk of injury.

What are some potential repair solutions for a B19A8 code?

Repairs may involve replacing damaged wiring, fixing or replacing the active headrest squib, or replacing the airbag control module if necessary.

Is it safe to clear the B19A8 code without fixing the issue?

No, clearing the code without addressing the underlying problem may lead to an unsafe situation if the airbag system is compromised.

How much might it cost to repair the B19A8 code?

Repair costs can vary widely based on the issue, ranging from a simple wiring fix costing around $100 to more complex repairs like replacing the squib or module that could run several hundred dollars.

Should I take my vehicle to a dealer or a mechanic for B19A8 code issues?

While both can address the issue, a dealer may have more specific experience with the vehicle's airbag system, but a qualified mechanic should also be able to perform the necessary repairs.