Engine-CodesToyota – B1906 2014 Toyota RAV4

B1906 2014 Toyota RAV4 Code - Open in Front Pretensioner Squib Left Circuit

Quick Answer

The B1906 diagnostic trouble code for a 2014 Toyota RAV4 indicates an open circuit in the Front Pretensioner Squib Left Circuit. Common causes include Wiring harness damage or corrosion, Loose or disconnected electrical connectors, Faulty pretensioner squib. 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
B1906 2014 Toyota RAV4 indicates Open in Front Pretensioner Squib Left Circuit.
Common causes
Common causes include Wiring harness damage or corrosion, Loose or disconnected electrical connectors, Faulty pretensioner squib.
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.
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code B1906 2014 Toyota RAV4 Description

The B1906 diagnostic trouble code for a 2014 Toyota RAV4 indicates an open circuit in the Front Pretensioner Squib Left Circuit. The pretensioner squib is a component of the vehicle's safety system that is responsible for tightening the seatbelt in the event of a collision to secure the occupant in place and reduce the risk of injury. An open circuit in this component means that there is a break or discontinuity in the electrical connection, preventing the pretensioner squib from functioning properly.

OBDII Code B1906 2014 Toyota RAV4 - Open in Front Pretensioner Squib Left Circuit
B1906 2014 Toyota RAV4 Code - Open in Front Pretensioner Squib Left Circuit

Common Causes of B1906 2014 Toyota RAV4

  1. Wiring harness damage or corrosion.
  2. Loose or disconnected electrical connectors.
  3. Faulty pretensioner squib.
  4. Impact or collision causing damage to the pretensioner squib circuit.
  5. Manufacturing defect in the pretensioner squib component.

Symptoms of B1906 2014 Toyota RAV4

  1. Airbag warning light illuminated on the dashboard.
  2. Seatbelt warning light activated.
  3. Inability to tighten seatbelt during sudden stops or collisions.
  4. Faulty airbag deployment in the event of a collision.

How to Fix B1906 2014 Toyota RAV4

  1. Begin by diagnosing the specific cause of the open circuit, using a diagnostic scanner to retrieve the trouble codes and pinpoint the issue.
  2. Inspect the wiring harness and connectors for any damage, corrosion, or loose connections. Repair or replace any damaged components.
  3. Test the pretensioner squib for proper functionality and replace it if necessary.
  4. Clear the trouble codes from the vehicle's system and perform a test drive to ensure that the issue has been resolved.
  5. If the problem persists, consult with a professional technician for further diagnosis and repair.

Cost to Fix B1906 2014 Toyota RAV4

The typical repair costs for addressing an open circuit in the Front Pretensioner Squib Left Circuit on a 2014 Toyota RAV4 can range from $200 to $500, including parts and labor. However, it is important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops commonly charge between $80 and $150 per hour, but rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It is advisable to check local rates for a more precise estimate.

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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 B1906 2014 Toyota RAV4 Code

1. What are the common symptoms of OBDII code B1906 in a 2014 Toyota RAV4?

- The common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the front pretensioner squib on the left side.

2. What does "Open in Front Pretensioner Squib Left Circuit" mean for a 2014 Toyota RAV4?

- This code indicates that there is an open circuit in the front pretensioner squib on the left side, which is a component of the vehicle's airbag system.

3. What are the possible causes of OBDII code B1906 in a 2014 Toyota RAV4?

- The code can be triggered by a faulty pretensioner squib, damaged wiring or connectors in the circuit, or issues with the airbag control module.

4. How serious is OBDII code B1906 in a 2014 Toyota RAV4?

- This code should be taken seriously as it indicates a potential problem with the vehicle's airbag system, which is crucial for occupant safety in the event of a collision.

5. Can I continue driving my 2014 Toyota RAV4 with OBDII code B1906?

- It is not recommended to drive the vehicle with this code present, as it may compromise the proper functioning of the airbag system in case of an accident.

6. How can OBDII code B1906 in a 2014 Toyota RAV4 be repaired?

- The repair typically involves diagnosing the specific cause of the open circuit and then replacing or repairing the affected components, such as the pretensioner squib or damaged wiring.

7. Is it possible to reset OBDII code B1906 in a 2014 Toyota RAV4 without fixing the issue?

- While you can clear the code with a diagnostic tool, it is crucial to address the underlying problem to ensure the airbag system functions correctly.

8. Can a DIY enthusiast fix OBDII code B1906 in a 2014 Toyota RAV4?

- While some may attempt to diagnose and repair the issue themselves, dealing with airbag systems can be complex and dangerous, so it is recommended to seek professional help.

9. How much does it cost to fix OBDII code B1906 in a 2014 Toyota RAV4?

- The cost of fixing this code can vary depending on the specific issue, but it may involve parts replacement, labor costs, and diagnostic fees, potentially ranging from a few hundred to over a thousand dollars.

10. How can I prevent OBDII code B1906 from appearing in my 2014 Toyota RAV4?

- Regular maintenance, avoiding accidents that could damage the airbag system, and addressing any warning lights promptly can help prevent the occurrence of this code.

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