AutoCodes – Lexus – B1826 Lexus

B1826 Lexus Code - Open in Side Squib Left Circuit

Quick Answer

The Front Side Squib Left (LH) Circuit consists of the Center Airbag Sensor Assembly and Front Seat Airbag Assembly Left (LH). Common causes include Faulty Front Seat Airbag Assembly Left (LH) (Front Side Squib Left), Front Seat Side Airbag Assembly LH harness is open or shorted, Front Seat Side Airbag Assembly LH circuit 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: B1826 Lexus indicates Open in Side Squib Left Circuit.
Common causes: Common causes include Faulty Front Seat Airbag Assembly Left (LH) (Front Side Squib Left), Front Seat Side Airbag Assembly LH harness is open or shorted, Front Seat Side Airbag Assembly LH circuit 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.

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Code Popularity 9,675

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Nov 29, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1826 Lexus Description

The Front Side Squib Left (LH) Circuit consists of the Center Airbag Sensor Assembly and Front Seat Airbag Assembly Left (LH). The circuit instructs the Supplemental Restraint System (SRS) to deploy when deployment conditions are met. The Diagnostic Trouble Code (DTC) is stored when a malfunction is detected in the Front Side Squib Left (LH) Circuit.

OBDII Code B1826 Lexus - Open in Side Squib Left Circuit - AutoCodes.com — B1826 Lexus Code - Open in Side Squib Left Circuit

What does this mean?

What are the Possible Causes of the DTC B1826 Lexus?

Faulty Front Seat Airbag Assembly Left (LH) (Front Side Squib Left)
Front Seat Side Airbag Assembly LH harness is open or shorted
Front Seat Side Airbag Assembly LH circuit poor electrical connection
Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1826 Lexus?

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 B1826 Lexus 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.

Need more information about the B1826 Lexus code?

Need more information on how to fix the B1826 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1826 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.

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 B1826 Lexus Code

1. What are the common symptoms of OBDII code B1826 in a Lexus related to an open in the side squib left circuit?

- The common symptoms include the airbag warning light staying illuminated on the dashboard and potential non-deployment of the side airbag in case of an accident.

2. What are the possible causes of OBDII code B1826 in a Lexus indicating an open in the side squib left circuit?

- The code B1826 typically indicates an open circuit in the side squib left airbag system, which can be caused by damaged wiring, a faulty side squib module, or a poor connection.

3. How can I diagnose the issue related to OBDII code B1826 in a Lexus?

- To diagnose the issue, you will need a diagnostic scanner capable of reading airbag fault codes. You can inspect the wiring harness for any visible damage, check connections, and test the side squib module for proper functionality.

4. Can I still drive my Lexus with OBDII code B1826 indicating an open in the side squib left circuit?

- It is not recommended to drive the vehicle with an active airbag fault code like B1826, as it indicates a potential safety risk due to the non-functioning side airbag. It is advised to address the issue promptly.

5. How can I repair OBDII code B1826 in a Lexus related to an open in the side squib left circuit?

- The repair process involves locating and repairing the open circuit in the side squib left circuit. This may include repairing or replacing damaged wiring, addressing faulty connections, or replacing the side squib module if necessary.

6. Is it possible to reset the OBDII code B1826 in a Lexus without fixing the underlying issue?

- While you can clear the fault code temporarily, it will likely reappear until the underlying issue causing the open circuit in the side squib left circuit is resolved. It is important to address the root cause of the problem.

7. Are there any safety precautions to keep in mind when working on the side squib left circuit in a Lexus?

- When working on the airbag system, always disconnect the vehicle's battery and wait for at least 10 minutes before starting any repairs to prevent accidental airbag deployment. It is also recommended to follow safety procedures outlined in the vehicle manual.

8. Can a DIY enthusiast with some automotive experience repair OBDII code B1826 in a Lexus?

- While some DIY enthusiasts may have the skills to diagnose and repair basic wiring issues, working on the airbag system requires specific knowledge and precautions. It is recommended to consult a professional or a certified technician for airbag-related repairs.

9. How long does it typically take to repair OBDII code B1826 in a Lexus at a repair shop?

- The repair time can vary depending on the exact cause of the open circuit in the side squib left circuit. It may take anywhere from a few hours to half a day to diagnose and repair the issue at a qualified repair shop.

10. What is the approximate cost to repair OBDII code B1826 in a Lexus related to an open in the side squib left circuit?

- The cost of repairing OBDII code B1826 can vary based on the labor rates at the repair shop, the cost of any necessary parts, and the extent of the repair needed. Typically, the repair cost can range from $100 to $500 or more.