B1806 Lexus Code - Open In Front Passenger Side Squib Circuit
Quick Answer
The B1806 diagnostic trouble code for Lexus vehicles indicates an "Open In Front Passenger Side Squib Circuit." In simpler terms, this code signifies that there is an issue with the circuit responsible for the front passenger side airbag system's squib, which is the electrical component that initiates the airbag deployment in the event of a collision. Common causes include Damaged wiring or connectors in the front passenger side squib circuit, Corrosion or loose connections in the circuit, Faulty front passenger side 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
- B1806 Lexus indicates Open In Front Passenger Side Squib Circuit.
- Common causes
- Common causes include Damaged wiring or connectors in the front passenger side squib circuit, Corrosion or loose connections in the circuit, Faulty front passenger side 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.
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 B1806 Lexus Description
The B1806 diagnostic trouble code for Lexus vehicles indicates an "Open In Front Passenger Side Squib Circuit." In simpler terms, this code signifies that there is an issue with the circuit responsible for the front passenger side airbag system's squib, which is the electrical component that initiates the airbag deployment in the event of a collision. The squib circuit is crucial for the proper functioning of the airbag system, as it ensures that the airbag deploys at the right time and with the correct force to protect the front passenger.
Common Causes of B1806 Lexus
- Damaged wiring or connectors in the front passenger side squib circuit.
- Corrosion or loose connections in the circuit.
- Faulty front passenger side squib.
- Impact or collision that damaged the airbag system components.
- Electrical issues in the vehicle's wiring harness.
Symptoms of B1806 Lexus
- Airbag warning light illuminated on the dashboard.
- Inability to turn off the airbag warning light even after resetting it.
- Loss of functionality in the front passenger side airbag.
- Diagnostic trouble codes related to the airbag system stored in the vehicle's computer.
- In some cases, the vehicle may fail a safety inspection due to the airbag system issue.
How to Fix B1806 Lexus
- Begin by disconnecting the vehicle's battery to prevent accidental deployment of the airbag system.
- Inspect the wiring and connectors in the front passenger side squib circuit for any damage, corrosion, or loose connections.
- Test the front passenger side squib using a multimeter to determine if it is functioning correctly.
- Replace any damaged wiring, connectors, or the front passenger side squib as needed.
- Clear the diagnostic trouble codes from the vehicle's computer and reset the airbag system.
Cost to Fix B1806 Lexus
The cost of repairing an open in the front passenger side squib circuit can vary depending on the extent of the damage and the specific components that need to be replaced. On average, the parts for this repair can range from $200 to $500, while the labor costs can range from $150 to $300. Overall, the total repair cost for this issue typically falls between $350 and $800. However, it is essential to note that these are rough estimates, and actual costs may vary based on various factors such as location, vehicle make and model, and labor rates at the auto repair shop. It is recommended to obtain a detailed quote from a trusted mechanic or dealership for a more accurate cost estimate.
Need more information about the B1806 Lexus code?
Need more information on how to fix the B1806 Lexus code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1806 Lexus 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 B1806 Lexus Code
1. What are the common symptoms of OBDII code B1806 in a Lexus related to an open in the front passenger side squib circuit?
- The common symptoms include the airbag warning light illuminating on the dashboard and potential non-deployment of the front passenger airbag during a collision.
2. What are some possible causes of the B1806 code indicating an open in the front passenger side squib circuit in a Lexus?
- The code can be triggered by issues such as a faulty front passenger airbag module, damaged wiring or connectors, or a blown fuse related to the airbag system.
3. How can I diagnose the open in the front passenger side squib circuit causing the B1806 code in my Lexus?
- Diagnosis typically involves using a scan tool to retrieve the specific fault code, inspecting the wiring and connectors for damage, and testing the front passenger airbag module for proper functionality.
4. Can I still drive my Lexus with the B1806 code indicating an open in the front passenger side squib circuit?
- It is not recommended to drive the vehicle with this code present, as it may compromise the safety of the front passenger in the event of a collision due to potential airbag non-deployment.
5. How should I repair the open in the front passenger side squib circuit issue causing the B1806 code in my Lexus?
- Repair involves addressing the specific cause of the open circuit, which may include replacing the faulty front passenger airbag module, repairing damaged wiring or connectors, and ensuring all components are properly connected.
6. Are there any safety precautions I should take when working on the front passenger side squib circuit in my Lexus to resolve the B1806 code?
- It is crucial to disconnect the vehicle's battery before working on any airbag-related components to prevent accidental airbag deployment, which can cause serious injury.
7. How much does it typically cost to repair the open in the front passenger side squib circuit issue triggering the B1806 code in a Lexus?
- Repair costs can vary depending on the specific cause of the issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.
8. Can I reset the B1806 code related to an open in the front passenger side squib circuit in my Lexus without fixing the underlying issue?
- Resetting the code without fixing the underlying problem will likely result in the code reappearing once the vehicle's system detects the issue again, so it's best to address the root cause of the problem.
9. Is the repair for the B1806 code indicating an open in the front passenger side squib circuit covered under warranty for a Lexus vehicle?
- Depending on the vehicle's warranty status and coverage, the repair for this issue may be covered if deemed a manufacturer defect. It's advisable to check with a Lexus dealership or service center.
10. How long does it typically take to repair the open in the front passenger side squib circuit issue causing the B1806 code in a Lexus?
- The repair time can vary based on the complexity of the issue and availability of parts. In general, it may take a few hours to a full day to diagnose and fix the problem.
Discuss the causes and fixes for B1806 Lexus OBDII Code
Code B1806 Lexus 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.