AutoCodes – Lexus – B0116 Lexus

B0116 Lexus Code - Open In Left-Side Air Bag Module Squib Circuit

Quick Answer

The side air bag module squib circuit consists of the air bag sensor assembly and side air bag module. Common causes include Faulty Left-Side Air Bag Module, Left-Side Air Bag Module harness is open or shorted, Left-Side Air Bag Module 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: B0116 Lexus indicates Open In Left-Side Air Bag Module Squib Circuit.
Common causes: Common causes include Faulty Left-Side Air Bag Module, Left-Side Air Bag Module harness is open or shorted, Left-Side Air Bag Module 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.

Save to My Repairs My Repairs

AI answers can be wrong. Verify repairs with testing. Open full chat

Code Popularity 9,228

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 Jun 14, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
Add Comment

💬 Need more help? Ask Coddy for instant answers — it's free!

Code B0116 Lexus Description

The side air bag module squib circuit consists of the air bag sensor assembly and side air bag module. The squib circuit causes the side air bag to deploy when deployment conditions are satisfied. The Air Bag Control Module monitors the Left-Side Air Bag Module. The Air Bag Control Module sets the OBDII code when the Left-Side Air Bag Module is not to factory specifications.

OBDII Code B0116 Lexus - Open In Left-Side Air Bag Module Squib Circuit - AutoCodes.com — B0116 Lexus Code - Open In Left-Side Air Bag Module Squib Circuit

What does this mean?

What are the Possible Causes of the DTC B0116 Lexus?

Faulty Left-Side Air Bag Module
Left-Side Air Bag Module harness is open or shorted
Left-Side Air Bag Module circuit poor electrical connection
Faulty Air Bag Control Module

How to Fix the DTC B0116 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 B0116 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 B0116 Lexus code?

Need more information on how to fix the B0116 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B0116 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 B0116 Lexus Code

1. What are the common symptoms of OBDII code B0116 in a Lexus related to an open in the left-side airbag module squib circuit?

- The common symptoms include the airbag warning light on the dashboard staying illuminated and the airbag system potentially being non-functional.

2. What usually causes the OBDII code B0116 in a Lexus indicating an open in the left-side airbag module squib circuit?

- The code is typically triggered by a break or open circuit in the wiring connecting the left-side airbag module squib to the airbag system.

3. How can I troubleshoot the OBDII code B0116 in a Lexus myself?

- You can start by visually inspecting the wiring harness and connectors for any visible damage or disconnections. Additionally, using a multimeter to test the continuity of the circuit can help pinpoint the issue.

4. Is it safe to drive my Lexus with the OBDII code B0116 present?

- It is not recommended to drive the vehicle with an active airbag system fault code, as the airbags may not deploy in the event of an accident. It is best to repair the issue as soon as possible.

5. Can a DIY enthusiast repair the open in the left-side airbag module squib circuit causing the OBDII code B0116 in a Lexus?

- While some basic troubleshooting steps can be performed by DIY enthusiasts, repairing the wiring or replacing components in the airbag system should be done by a qualified technician to ensure proper functionality and safety.

6. How much does it typically cost to repair the open in the left-side airbag module squib circuit in a Lexus triggering the OBDII code B0116?

- The cost of repair can vary depending on the extent of the damage and the specific model of Lexus. It is advisable to get a diagnostic from a professional to get an accurate estimate.

7. Will resetting the OBDII code B0116 in my Lexus make the issue go away?

- Resetting the code may temporarily turn off the warning light, but if the underlying issue causing the open in the left-side airbag module squib circuit is not fixed, the code is likely to reappear.

8. Are there any safety precautions to be aware of when working on the airbag system to resolve the OBDII code B0116 in a Lexus?

- It is crucial to disconnect the vehicle's battery and wait for the specified time before working on the airbag system to prevent accidental deployment, which can be dangerous.

9. Can a faulty left-side airbag module cause the OBDII code B0116 in a Lexus?

- While a faulty airbag module can potentially trigger the code, it is more commonly associated with issues in the wiring or connectors leading to the module.

10. How long does it typically take to repair the open in the left-side airbag module squib circuit causing the OBDII code B0116 in a Lexus?

- The repair time can vary based on the extent of the damage and the accessibility of the wiring. In general, a qualified technician can complete the repair within a few hours to a day.