B1906 2018 Toyota RAV4 Code - Open in Front Pretensioner Squib Left Circuit
Quick Answer
The B1906 diagnostic trouble code (DTC) for a 2018 Toyota RAV4 indicates an open circuit in the Front Pretensioner Squib Left Circuit. Common causes include Damaged or frayed wiring in the pretensioner circuit, Loose or corroded connections in the circuit, Faulty pretensioner squib or sensor. 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 2018 Toyota RAV4 indicates Open in Front Pretensioner Squib Left Circuit.
- Common causes
- Common causes include Damaged or frayed wiring in the pretensioner circuit, Loose or corroded connections in the circuit, Faulty pretensioner squib or sensor.
- 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.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
Code B1906 2018 Toyota RAV4 Description
The B1906 diagnostic trouble code (DTC) for a 2018 Toyota RAV4 indicates an open circuit in the Front Pretensioner Squib Left Circuit. In simpler terms, this means that there is a problem with the wiring or connection in the left front seatbelt pretensioner system. The pretensioner is a safety feature that tightens the seatbelt in the event of a collision, helping to secure the occupant in place and reduce the risk of injury.
Common Causes of B1906 2018 Toyota RAV4
- Damaged or frayed wiring in the pretensioner circuit.
- Loose or corroded connections in the circuit.
- Faulty pretensioner squib or sensor.
- Impact or collision that damaged the pretensioner system.
- Manufacturing defect in the pretensioner component.
Symptoms of B1906 2018 Toyota RAV4
- Illumination of the airbag warning light on the dashboard.
- Inability to properly fasten the seatbelt on the left side.
- Failure of the seatbelt to retract or tighten during sudden stops or impacts.
- Diagnostic trouble code B1906 stored in the vehicle's computer system.
How to Fix B1906 2018 Toyota RAV4
- Begin by disconnecting the vehicle's battery to prevent accidental deployment of the airbags.
- Locate and inspect the wiring and connections in the Front Pretensioner Squib Left Circuit for any damage or corrosion.
- Repair or replace any damaged wiring or connectors as needed.
- Test the pretensioner system to ensure proper functionality.
- Clear the diagnostic trouble code from the vehicle's computer system.
Cost to Fix B1906 2018 Toyota RAV4
The cost of repairing an open circuit in the Front Pretensioner Squib Left Circuit can vary depending on the extent of the damage and the specific components that need to be replaced. In general, the cost of parts for this repair can range from $100 to $300, while the labor cost can range from $150 to $300. Overall, the total repair cost for this issue is typically between $250 and $600. It's important to note that these are rough estimates, and actual costs may vary based on factors such as location, vehicle make and model, and labor rates at the auto repair shop. It's recommended to consult with a professional technician for a more accurate cost estimate based on your specific situation.
Need more information about the B1906 2018 Toyota RAV4 code?
Need more information on how to fix the B1906 2018 Toyota RAV4 code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1906 2018 Toyota RAV4 code diagnosed by a professional: Find a repair shop in your area
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 2018 Toyota RAV4 Code
1. What does the OBDII code B1906 mean on a 2018 Toyota RAV4?
B1906 indicates an "Open in Front Pretensioner Squib Left Circuit," meaning there is an electrical issue in the driver-side seat belt pretensioner circuit.
2. What are the common symptoms of the B1906 code?
The most common symptom is the airbag warning light illuminating on the dashboard. Seat belt pretensioner functionality may also be compromised.
3. What causes the B1906 code to appear?
The code is typically caused by a damaged or disconnected wiring harness, faulty seat belt pretensioner, or a loose electrical connector in the left-side pretensioner circuit.
4. Is it safe to drive with a B1906 code on my 2018 Toyota RAV4?
While the vehicle is drivable, the airbag system may not function properly in the event of a collision. It’s recommended to address the issue promptly.
5. How can I diagnose the B1906 code on my Toyota RAV4?
Inspect the wiring and connectors associated with the left front seat belt pretensioner for damage or disconnection. Use a multimeter to check for continuity in the circuit.
6. Can a faulty airbag control module cause the B1906 code?
While unlikely, a malfunctioning airbag control module could contribute to this code. It’s best to rule out wiring and pretensioner issues first.
7. How do I fix the B1906 code in my 2018 Toyota RAV4?
Repairs may involve reconnecting loose connectors, repairing damaged wiring, or replacing the left-side seat belt pretensioner if it is defective.
8. How much does it cost to repair a B1906 code?
Repair costs can vary but typically range from $100 to $500 depending on whether it’s a wiring issue or if the pretensioner needs replacement.
9. Can I clear the B1906 code without fixing the issue?
Clearing the code with a scan tool may temporarily turn off the warning light, but the code will return if the underlying problem isn’t resolved.
10. Should I take my RAV4 to a mechanic for the B1906 code?
If you’re not comfortable diagnosing or repairing airbag and seat belt systems, it’s best to consult a qualified technician to ensure safety and proper functionality.
Discuss the causes and fixes for B1906 2018 Toyota RAV4 OBDII Code
Code B1906 2018 Toyota RAV4 comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.