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B1926 Toyota Code - Open In Rear Pretensioner Squib LH Circuit

Quick Answer

The B1926 diagnostic trouble code for Toyota indicates an open circuit in the Rear Pretensioner Squib LH (left-hand) circuit. Common causes include Electrical wiring or connector damage, Faulty pretensioner squib, Corrosion in the circuit. 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
B1926 Toyota indicates Open In Rear Pretensioner Squib LH Circuit.
Common causes
Common causes include Electrical wiring or connector damage, Faulty pretensioner squib, Corrosion in the circuit.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code B1926 Toyota Description

The B1926 diagnostic trouble code for Toyota indicates an open circuit in the Rear Pretensioner Squib LH (left-hand) 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, reducing the risk of injury to the occupants. An open circuit in this component means that there is a break in the electrical connection, which can prevent the pretensioner from activating properly during an accident. This can compromise the effectiveness of the seatbelt system and increase the risk of injury to the occupants in the event of a crash.

OBDII Code B1926 Toyota - Open In Rear Pretensioner Squib LH Circuit
B1926 Toyota Code - Open In Rear Pretensioner Squib LH Circuit

Common Causes of B1926 Toyota

  1. Electrical wiring or connector damage
  2. Faulty pretensioner squib
  3. Corrosion in the circuit
  4. Impact from a previous collision causing damage to the wiring or component
  5. Manufacturing defect in the pretensioner squib

Symptoms of B1926 Toyota

  1. Airbag warning light illuminated on the dashboard
  2. Seatbelt warning light may be illuminated
  3. Seatbelt may not retract properly
  4. In the event of a collision, the seatbelt may not tighten as intended
  5. Vehicle may fail safety inspections due to airbag system malfunction

How to Fix B1926 Toyota

  1. Diagnose the specific cause of the open circuit using a diagnostic scanner
  2. Inspect the wiring and connectors for damage or corrosion
  3. Test the pretensioner squib for proper functionality
  4. Replace any damaged wiring, connectors, or the pretensioner squib as necessary
  5. Clear the diagnostic trouble code and test the system to ensure proper operation

Cost to Fix B1926 Toyota

The cost of repairing an open circuit in the Rear Pretensioner Squib LH circuit can vary depending on the specific cause of the issue and the cost of parts and labor. On average, the repair for this type of issue can range from $200 to $500, including parts and labor. However, it's important to keep in mind that labor rates can vary widely depending on the location and type of repair shop, so it's recommended to obtain a few quotes from different shops to get a more accurate estimate.

Need more information about the B1926 Toyota code?

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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 B1926 Toyota Code

1. What are the common symptoms of OBDII code B1926 Toyota (Open In Rear Pretensioner Squib LH Circuit)?

The common symptoms include the airbag warning light illuminating on the dashboard and potential non-deployment of the rear seatbelt pretensioner in the event of a crash.

2. What are the possible causes of OBDII code B1926 Toyota?

The code B1926 indicates an open circuit in the rear pretensioner squib LH circuit. Possible causes include damaged wiring, a faulty pretensioner squib, or loose connections.

3. How can I diagnose the issue related to OBDII code B1926 Toyota?

Diagnosing the issue involves checking the wiring harness and connectors for damage, testing the resistance of the pretensioner squib, and using a scan tool to retrieve and clear the code for further testing.

4. Can I repair OBDII code B1926 Toyota on my own?

Repairing this code may require advanced knowledge of automotive electrical systems. It is recommended to consult a professional mechanic or technician to properly diagnose and repair the issue.

5. Is it safe to drive with OBDII code B1926 Toyota present?

It is not recommended to drive the vehicle with the B1926 code active, as it indicates a potential issue with the rear pretensioner squib LH circuit, which could affect the proper functioning of the seatbelt pretensioner system.

6. How much does it typically cost to repair OBDII code B1926 Toyota?

The cost of repairing this code can vary depending on the underlying cause of the issue. It is advisable to obtain a diagnostic from a qualified technician to determine the exact repair cost.

7. Can resetting the OBDII system clear the B1926 code?

Resetting the OBDII system may temporarily clear the B1926 code, but if the root cause of the issue is not addressed, the code is likely to reappear. It is important to diagnose and fix the underlying problem.

8. Will disconnecting the battery fix OBDII code B1926 Toyota?

Disconnecting the battery may reset the system temporarily, but it will not fix the underlying issue causing the B1926 code. Proper diagnosis and repair are necessary to resolve the problem.

9. How long does it take to repair OBDII code B1926 Toyota?

The repair time for this code can vary depending on the complexity of the issue and the availability of parts. In some cases, it may be a quick fix, while in others, it could take several hours to diagnose and repair.

10. Can OBDII code B1926 Toyota be a recurring problem?

If the underlying cause of the B1926 code is not properly addressed, it can indeed become a recurring problem. It is crucial to diagnose and repair the issue correctly to prevent it from happening again.

Discuss the causes and fixes for B1926 Toyota OBDII Code

Submit a New Comment

  • I have this code Where would I look on a 2019 Toyota Camry

    Reply to Comment

  • Start by inspecting the Left Seat Outer Belt, make sure the seat belt is not damage. You should also contact your local Toyota dealer, if your Toyota has not been in an accident, it should be cover under warrranty.

    Reply to Comment