AutoCodes – Lexus – B1690 Lexus

B1690 Lexus Code - Door Side Airbag Sensor Right Malfunction

Quick Answer

The Side Airbag Sensor Right (RH) consists of the Diagnostic Circuit, the Lateral Deceleration Sensor, etc. Common causes include Faulty Side Airbag Sensor Right (RH), Side Airbag Sensor Right harness is open or shorted, Side Airbag Sensor Right 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: B1690 Lexus indicates Door Side Airbag Sensor Right Malfunction.
Common causes: Common causes include Faulty Side Airbag Sensor Right (RH), Side Airbag Sensor Right harness is open or shorted, Side Airbag Sensor Right 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 1,434

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 Oct 13, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1690 Lexus Description

The Side Airbag Sensor Right (RH) consists of the Diagnostic Circuit, the Lateral Deceleration Sensor, etc. If the Center Airbag Sensor receives signals from the Lateral Deceleration Sensor, it determines whether the SRS should be activated. The Diagnostic Trouble Code (DTC) B1690 is stored when a malfunction is detected in the Side Airbag Sensor Right (RH) circuit.

OBDII Code B1690 Lexus - Door Side Airbag Sensor Right Malfunction - AutoCodes.com — B1690 Lexus Code - Door Side Airbag Sensor Right Malfunction

What does this mean?

What are the Possible Causes of the DTC B1690 Lexus?

Faulty Side Airbag Sensor Right (RH)
Side Airbag Sensor Right harness is open or shorted
Side Airbag Sensor Right circuit poor electrical connection
Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1690 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 B1690 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 B1690 Lexus code?

Need more information on how to fix the B1690 Lexus code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1690 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 B1690 Lexus Code

1. What are the common symptoms of OBDII code B1690 in a Lexus related to the Door Side Airbag Sensor Right Malfunction?

- Common symptoms include the airbag warning light illuminating on the dashboard, potential loss of function of the right side door airbag, and a diagnostic trouble code B1690 being stored in the vehicle's computer system.

2. What are the possible causes of the Door Side Airbag Sensor Right Malfunction in a Lexus triggering OBDII code B1690?

- The malfunction may be caused by a faulty door side airbag sensor on the right side, damaged wiring or connectors in the airbag system, or issues with the airbag control module.

3. How can I diagnose the Door Side Airbag Sensor Right Malfunction in my Lexus triggering code B1690?

- Diagnosis involves using an OBDII scanner to retrieve the specific trouble code B1690, visually inspecting the airbag sensor and related wiring for damage, and performing any necessary continuity or resistance tests.

4. Can I continue driving my Lexus with the OBDII code B1690 related to the Door Side Airbag Sensor Right Malfunction?

- It is not recommended to drive the vehicle with a malfunctioning airbag sensor as it may affect the proper deployment of the airbag in case of an accident, potentially compromising safety.

5. How can I repair the Door Side Airbag Sensor Right Malfunction in my Lexus to clear OBDII code B1690?

- Repair may involve replacing the faulty door side airbag sensor, repairing damaged wiring or connectors, or addressing any issues with the airbag control module. It is advisable to have the repairs done by a qualified technician.

6. Is it possible to reset the OBDII code B1690 related to the Door Side Airbag Sensor Right Malfunction without fixing the issue?

- While clearing the code with an OBDII scanner may temporarily turn off the warning light, the underlying issue with the airbag sensor will persist, potentially compromising the safety features of the vehicle.

7. How much does it typically cost to repair the Door Side Airbag Sensor Right Malfunction triggering code B1690 in a Lexus?

- The cost of repair can vary depending on the specific cause of the malfunction, the parts needed for replacement, and labor charges. It is advisable to get a few quotes from reputable repair shops.

8. Can a DIY enthusiast with some automotive knowledge fix the OBDII code B1690 related to the Door Side Airbag Sensor Right Malfunction?

- While some basic troubleshooting like checking for loose connections or damaged wiring may be possible, working on the airbag system requires specialized knowledge and tools. It is recommended to consult a professional technician.

9. Are there any recalls or service bulletins related to the OBDII code B1690 in Lexus vehicles for the Door Side Airbag Sensor Right Malfunction?

- It is advisable to check with a Lexus dealership or visit the manufacturer's website to see if there are any recalls or service bulletins related to the specific issue of the Door Side Airbag Sensor Right Malfunction triggering code B1690.

10. What safety precautions should be taken when dealing with the Door Side Airbag Sensor Right Malfunction in a Lexus to avoid accidental airbag deployment?

- Before attempting any repairs related to the airbag system, it is crucial to disconnect the vehicle's battery and wait for at least 10-15 minutes to discharge any stored energy in the system. This helps prevent accidental airbag deployment, which can be dangerous.