AutoCodes – Lexus – B1675 Lexus

B1675 Lexus Code - Rear Floor Airbag Sensor Malfunction

Quick Answer

The Rear Floor Airbag Sensor consists of the diagnostic circuit, the Rear Floor Deceleration Sensor, etc. Common causes include Faulty Rear Floor Airbag Sensor, Rear Floor Airbag Sensor harness is open or shorted, Rear Floor Airbag Sensor 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: B1675 Lexus indicates Rear Floor Airbag Sensor Malfunction.
Common causes: Common causes include Faulty Rear Floor Airbag Sensor, Rear Floor Airbag Sensor harness is open or shorted, Rear Floor Airbag Sensor 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 854

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 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1675 Lexus Description

The Rear Floor Airbag Sensor consists of the diagnostic circuit, the Rear Floor Deceleration Sensor, etc. If the Center Airbag Sensor receives signals from the Rear Floor Deceleration Sensor, it determines whether the Supplemental Restraint System (SRS) should be activated. The Diagnostic Trouble Code (DTC) B1675 is stored when a malfunction is detected in the Rear Floor Airbag Sensor circuit.

OBDII Code B1675 Lexus - Rear Floor Airbag Sensor Malfunction - AutoCodes.com — B1675 Lexus Code - Rear Floor Airbag Sensor Malfunction

What does this mean?

What are the Possible Causes of the DTC B1675 Lexus?

Faulty Rear Floor Airbag Sensor
Rear Floor Airbag Sensor harness is open or shorted
Rear Floor Airbag Sensor circuit poor electrical connection
Faulty Center Airbag Sensor

How to Fix the DTC B1675 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 B1675 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 B1675 Lexus code?

Need more information on how to fix the B1675 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1675 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 B1675 Lexus Code

1. What are the common symptoms of OBDII code B1675 in a Lexus related to the rear floor airbag sensor malfunction?

- Common symptoms include the airbag warning light illuminating on the dashboard, possible non-deployment of the rear floor airbags during a collision, and diagnostic trouble codes stored in the vehicle's computer.

2. What are the possible causes of the B1675 code indicating a rear floor airbag sensor malfunction in a Lexus?

- The code B1675 can be triggered by issues such as a faulty rear floor airbag sensor, damaged wiring or connectors in the airbag system, or a malfunction in the airbag control module.

3. How can I diagnose the B1675 code related to the rear floor airbag sensor malfunction in my Lexus?

- Diagnosis typically involves using an OBDII scanner to retrieve the specific trouble code, inspecting the rear floor airbag sensor and its wiring for any visible damage, and performing continuity tests to check for electrical issues.

4. Is it safe to drive my Lexus with the B1675 code indicating a rear floor airbag sensor malfunction?

- It is not recommended to drive the vehicle with this code present, as it may indicate a potential safety issue with the rear floor airbag system. Have the problem diagnosed and repaired promptly.

5. Can I reset the B1675 code related to the rear floor airbag sensor malfunction in my Lexus on my own?

- While you can clear the code with an OBDII scanner, it is important to address the underlying issue causing the code to prevent potential safety risks. Resetting the code without fixing the problem will only temporarily turn off the warning light.

6. How should I repair the B1675 code indicating a rear floor airbag sensor malfunction in my Lexus?

- Repair methods may include replacing the faulty rear floor airbag sensor, repairing damaged wiring or connectors, or reprogramming the airbag control module if necessary.

7. Can a DIY enthusiast fix the B1675 code related to the rear floor airbag sensor malfunction in a Lexus?

- While some basic troubleshooting like checking for loose connections can be done by a DIY enthusiast, repairing or replacing components in the airbag system should be left to trained professionals due to safety concerns.

8. How much does it typically cost to repair the B1675 code indicating a rear floor airbag sensor malfunction in a Lexus?

- The cost of repair can vary depending on the specific issue causing the code, the labor rates of the repair shop, and the cost of any replacement parts needed. It is advisable to obtain estimates from different shops.

9. Are there any recalls or service bulletins related to the B1675 code in Lexus vehicles?

- It is recommended to check with a Lexus dealership or visit the official Lexus website to see if there are any recalls or service bulletins related to the B1675 code and rear floor airbag sensor malfunctions in your specific Lexus model.

10. How often should I have the rear floor airbag system inspected in my Lexus to prevent issues like the B1675 code?

- Regular maintenance schedules outlined in your Lexus owner's manual typically include airbag system inspections. Following these recommended service intervals can help prevent issues like the B1675 code and ensure the proper functioning of your airbag system.