B1906 Toyota Code - Open in Front Pretensioner Squib Left Circuit
Quick Answer
The Front Pretensioner Squib Left (LH) Circuit consists of the Center Airbag Sensor Assembly and Front Seat Outer Belt Assembly Left (LH). Common causes include Faulty Front Seat Outer Belt Assembly Left (LH) (Front Pretensioner Squib Left), Front Seat Outer Belt Assembly Left is open or shorted, Front Seat Outer Belt Assembly Left 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
- B1906 Toyota indicates Open in Front Pretensioner Squib Left Circuit.
- Common causes
- Common causes include Faulty Front Seat Outer Belt Assembly Left (LH) (Front Pretensioner Squib Left), Front Seat Outer Belt Assembly Left is open or shorted, Front Seat Outer Belt Assembly Left 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.
Code B1906 Toyota Description
What are the Possible Causes of the DTC B1906 Toyota?
- Faulty Front Seat Outer Belt Assembly Left (LH) (Front Pretensioner Squib Left)
- Front Seat Outer Belt Assembly Left is open or shorted
- Front Seat Outer Belt Assembly Left poor electrical connection
- Faulty Center Airbag Sensor Assembly
How to Fix the DTC B1906 Toyota?
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 B1906 Toyota 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.
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Information for Specific Toyota Models
- B1906 2013 Toyota RAV4 — Open in Front Pretensioner Squib Left Circuit
- B1906 2014 Toyota RAV4 — Open in Front Pretensioner Squib Left Circuit
- B1906 2015 Toyota RAV4 — Open in Front Pretensioner Squib Left Circuit
- B1906 2016 Toyota RAV4 — Open in Front Pretensioner Squib Left Circuit
- B1906 2017 Toyota RAV4 — Open in Front Pretensioner Squib Left Circuit
- B1906 2018 Toyota RAV4 — Open in Front Pretensioner Squib Left 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.
Frequently Asked Questions about B1906 Toyota Code
1. What does the OBDII code B1906 for Toyota mean?
The code B1906 indicates an "Open in Front Pretensioner Squib Left Circuit" on a Toyota vehicle.
2. What are the common symptoms of the B1906 OBDII code in a Toyota?
Common symptoms of the B1906 code may include an illuminated airbag warning light on the dashboard and potential non-deployment of the left front seatbelt pretensioner in the event of a collision.
3. What are the possible causes of the B1906 code in a Toyota?
Possible causes of the B1906 code include a faulty pretensioner squib left circuit, damaged wiring or connectors in the circuit, or a malfunctioning airbag control module.
4. How can I diagnose the B1906 code in my Toyota?
Diagnosing the B1906 code typically involves using a diagnostic scan tool to retrieve the trouble code, inspecting the wiring and connectors related to the left front pretensioner squib circuit, and testing the components for proper functionality.
5. Can I drive my Toyota with the B1906 code?
It is not recommended to drive your Toyota with the B1906 code present, as it indicates a potential safety issue with the airbag system. It is advisable to have the issue diagnosed and repaired promptly.
6. How can I repair the B1906 code in my Toyota?
Repairing the B1906 code may involve repairing or replacing the left front pretensioner squib, repairing damaged wiring or connectors, or reprogramming the airbag control module. It is recommended to have a qualified technician perform the repairs.
7. Will resetting the OBDII code B1906 make it go away permanently?
Resetting the B1906 code may temporarily turn off the warning light, but if the underlying issue is not addressed, the code is likely to return. It is important to diagnose and repair the root cause of the code to prevent future occurrences.
8. Is it safe to reset the B1906 code without fixing the issue in my Toyota?
Resetting the B1906 code without fixing the underlying problem is not recommended, as it may pose a safety risk in the event of an accident where the airbag system is needed. It is best to address the issue promptly.
9. Can I repair the B1906 code in my Toyota at home?
Depending on your experience and knowledge of automotive systems, you may be able to diagnose and repair the B1906 code at home. However, due to the critical nature of the airbag system, it is advisable to seek professional help to ensure a proper and safe repair.
10. How much does it cost to fix the B1906 code in a Toyota?
The cost of fixing the B1906 code in a Toyota can vary depending on the root cause of the issue, the required repairs, and labor costs. It is recommended to obtain quotes from reputable repair shops or dealerships for an accurate estimate.
Discuss the causes and fixes for B1906 Toyota OBDII Code
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B1906 how to fix it or how to switch off airbag warn light to Toyota RAV4 from UK model 2006
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The diagnostic trouble code B1906 for your 2006 Toyota RAV4 refers to an "Open in Front Pretensioner Squib Left Circuit." This issue is part of the Supplemental Restraint System (SRS), and it's associated with the airbag system. Here’s what it means and how to address it:
Potential Causes:
- Faulty Front Seat Outer Belt Assembly (Left Pretensioner Squib)
- Open or short circuit in the Front Seat Outer Belt Assembly (Left side)
- Poor electrical connection in the Front Seat Outer Belt Assembly
- Faulty Center Airbag Sensor Assembly
How to Fix It:
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Inspect the Wiring: Check for any visible damage or disconnections in the wiring related to the seatbelt pretensioner on the driver's side.
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Check the Connections: Ensure that the connectors under the seat are properly connected and that there is no corrosion or debris affecting the electrical connections.
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Replace Faulty Components: If the wiring and connectors seem fine, the issue might lie with a faulty seatbelt pretensioner or the airbag sensor. This would typically require replacing the faulty Front Seat Outer Belt Assembly (Left) or the Center Airbag Sensor Assembly.
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Clear the Code: After resolving the issue, use an OBD-II scanner to clear the code and reset the airbag warning light. If the issue is fixed, the light should remain off.
If you are not comfortable performing these steps yourself, it's best to consult a professional mechanic, as airbag system repairs can be complex and sensitive to safety.
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