B19A5 Code - Short In Front Active Headrest Squib LH Circuit

Quick Answer

The B19A5 code indicates a short in the front active headrest squib LH circuit. Common causes include Wiring harness damage or short circuit, Faulty active headrest squib LH, Loose or corroded 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

B19A5 indicates Short In Front Active Headrest Squib LH Circuit.

Common causes

Common causes include Wiring harness damage or short circuit, Faulty active headrest squib LH, Loose or corroded 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.

• Description
• Common Causes
• Symptoms
• How To Fix
• Cost to Fix
• FAQs
• Comments
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Common Causes of B19A5

Symptoms of B19A5

How to Fix B19A5

Cost to Fix B19A5

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Code B19A5 Information for Specific Makes

• B19A5 Chrysler — Left Power Sliding Door Control Circuit 1 High
• B19A5 Dodge — Left Power Sliding Door Control Circuit 1 High
• B19A5 Ford — Passenger Seat Cushion Blower Speed Short To Ground
• B19A5 Jeep — Left Power Sliding Door Control Circuit 1 High
• B19A5 Lexus — Short In Front Active Headrest Squib LH Circuit
• B19A5 Lincoln — Passenger Seat Cushion Blower Speed Short To Ground
• B19A5 Mercury — Passenger Seat Cushion Blower Speed Short To Ground
• B19A5 RAM — Left Power Sliding Door Control Circuit 1 High
• B19A5 Scion — Short In Front Active Headrest Squib LH Circuit
• B19A5 Toyota — Short 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 B19A5 Code

1. What are the common symptoms of OBDII code B19A5?

- Common symptoms include the airbag warning light illuminating on the dashboard, inactive front active headrests, and potential loss of functionality in the safety system.

2. What does the OBDII code B19A5 "Short In Front Active Headrest Squib LH Circuit" mean?

- This code indicates a short circuit in the left-hand circuit of the front active headrest squib, potentially affecting the deployment of the headrest in the event of a collision.

3. What are the possible causes of OBDII code B19A5?

- Causes may include damaged wiring or connectors in the LH circuit of the front active headrest squib, a faulty squib unit, or issues with the airbag control module.

4. How serious is OBDII code B19A5?

- This code should be taken seriously as it relates to the proper functioning of a safety system in the vehicle. It is important to address this issue promptly to ensure the effectiveness of the headrest in case of an accident.

5. Can I continue driving with OBDII code B19A5 present?

- It is not recommended to continue driving with this code present, as it may compromise the safety features of your vehicle. It is advisable to address the issue as soon as possible.

6. How can OBDII code B19A5 be diagnosed?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the specific fault code, followed by a thorough inspection of the wiring, connectors, and components related to the front active headrest squib LH circuit.

7. Is it possible to repair OBDII code B19A5 on my own?

- Depending on your level of automotive expertise, you may be able to address the issue yourself by checking for visible damage in the wiring and connectors. However, for a proper diagnosis and repair, it is recommended to seek assistance from a professional mechanic.

8. Are there any safety precautions to take when dealing with OBDII code B19A5?

- When working on the airbag system or related components, it is crucial to disconnect the vehicle's battery and wait for a specified period before proceeding to prevent accidental deployment of the airbags.

9. How much does it typically cost to repair OBDII code B19A5?

- The cost of repairing this code can vary depending on the extent of the damage and the specific components that need to be replaced. It is advisable to obtain quotes from different mechanics or service centers.

10. Can resetting the OBDII system clear the B19A5 code?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the B19A5 code is not addressed, it is likely to reappear. It is important to diagnose and repair the root cause of the problem.