Engine-CodesToyota – B1690 Toyota

B1690 Toyota Code - Door Side Airbag Sensor Right Malfunction

Quick Answer

The B1690 diagnostic trouble code for Toyota vehicles indicates a malfunction in the door side airbag sensor on the right side of the vehicle. Common causes include Wiring issues: Corrosion, fraying, or damage to the wiring connected to the door side airbag sensor can lead to a malfunction, Sensor failure: The sensor itself may be faulty due to internal component failure or damage, Airbag control module issues: Problems with the airbag control module, which communicates with the sensor, can also trigger this code. 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 Toyota indicates Door Side Airbag Sensor Right Malfunction.
Common causes
Common causes include Wiring issues: Corrosion, fraying, or damage to the wiring connected to the door side airbag sensor can lead to a malfunction, Sensor failure: The sensor itself may be faulty due to internal component failure or damage, Airbag control module issues: Problems with the airbag control module, which communicates with the sensor, can also trigger this code.
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.
Table of contents Created and updated by William Orellana on Sep 09, 2024
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Code B1690 Toyota Description

The B1690 diagnostic trouble code for Toyota vehicles indicates a malfunction in the door side airbag sensor on the right side of the vehicle. This sensor is responsible for detecting impacts or collisions on the right side of the vehicle and deploying the side airbag to protect occupants in the event of a crash. When this sensor malfunctions, it can compromise the effectiveness of the airbag system and potentially put passengers at risk in the event of a side impact collision.

OBDII Code B1690 Toyota - Door Side Airbag Sensor Right Malfunction
B1690 Toyota Code - Door Side Airbag Sensor Right Malfunction

Common Causes of B1690 Toyota

  1. Wiring issues: Corrosion, fraying, or damage to the wiring connected to the door side airbag sensor can lead to a malfunction.
  2. Sensor failure: The sensor itself may be faulty due to internal component failure or damage.
  3. Airbag control module issues: Problems with the airbag control module, which communicates with the sensor, can also trigger this code.
  4. Impact or collision: A previous impact or collision on the right side of the vehicle may have damaged the sensor or related components.

Symptoms of B1690 Toyota

  1. Airbag warning light on the dashboard: One of the most common symptoms of a malfunctioning door side airbag sensor right is the illumination of the airbag warning light on the dashboard.
  2. Inability to deploy the right side airbag: If the sensor is not functioning properly, it may result in the airbag not deploying in the event of a side collision.
  3. Faulty airbag system: The vehicle's airbag system may fail to pass self-tests, leading to a potential safety hazard.
  4. Irregular or unexpected airbag deployment: In some cases, a malfunctioning sensor can cause the airbag to deploy unexpectedly or at the wrong time.

How to Fix B1690 Toyota

  1. Diagnostic scan: Use a diagnostic scanner to retrieve the specific trouble code and pinpoint the exact cause of the malfunction.
  2. Check wiring and connections: Inspect the wiring harness and connections related to the door side airbag sensor for any signs of damage or corrosion. Repair or replace as needed.
  3. Replace the door side airbag sensor: If the sensor is found to be faulty, it will need to be replaced with a new one to restore proper functionality.
  4. Reset the airbag system: After replacing the sensor, reset the airbag system to clear the trouble code and ensure proper operation.
  5. Test airbag system: Perform a thorough test of the airbag system to ensure that the door side airbag sensor right is functioning correctly and that the airbag deploys as intended in a controlled environment.

Cost to Fix B1690 Toyota

The cost of repairing a door side airbag sensor right malfunction can vary depending on the extent of the damage, the cost of the sensor itself, and labor rates at the auto repair shop. On average, the cost of replacing a door side airbag sensor can range from $200 to $500, including parts and labor. However, this estimate can vary significantly based on the specific vehicle make and model, as well as the location of the repair shop. It is advisable to get a detailed quote from a trusted auto repair shop to determine the exact cost for your specific situation. Keep in mind that additional diagnostic time and labor may be required to accurately diagnose and repair this issue.

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Information for Specific Toyota Models

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 Toyota Code

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

Common symptoms include the airbag warning light being illuminated on the dashboard and potential issues with the functionality of the right door side airbag.

2. What are the possible causes of the B1690 code indicating a Door Side Airbag Sensor Right Malfunction in a Toyota?

The code B1690 can be triggered by a faulty door side airbag sensor on the right side, wiring issues, or a problem with the airbag control module.

3. How serious is the B1690 OBDII code related to the Door Side Airbag Sensor Right Malfunction in a Toyota?

This code indicates a malfunction in the right door side airbag sensor, which can compromise the safety of the vehicle occupants in the event of a side impact collision. It is essential to address this issue promptly.

4. Can I continue driving my Toyota with the B1690 code for Door Side Airbag Sensor Right Malfunction?

It is not recommended to drive the vehicle with a malfunctioning airbag sensor, as it can affect the proper deployment of the airbag in case of an accident. It is best to have the issue diagnosed and repaired as soon as possible.

5. How can I diagnose the cause of the B1690 code for Door Side Airbag Sensor Right Malfunction in my Toyota?

Diagnosing the B1690 code involves using a compatible OBDII scanner to retrieve the code and then performing a thorough inspection of the right door side airbag sensor, wiring, and connections to identify the root cause of the malfunction.

6. What are some repair tips for addressing the B1690 code indicating a Door Side Airbag Sensor Right Malfunction in a Toyota?

Repair tips may include checking the sensor's wiring for any damage or corrosion, inspecting the sensor itself for physical damage, and resetting the airbag control module after fixing any issues.

7. Can I reset the B1690 OBDII code for Door Side Airbag Sensor Right Malfunction in my Toyota without fixing the underlying problem?

While you can clear the code using an OBDII scanner, it is crucial to address the root cause of the malfunction to ensure the proper functioning of the right door side airbag sensor and overall safety of the vehicle.

8. Is it possible to repair the Door Side Airbag Sensor Right Malfunction in a Toyota DIY, or should I seek professional help?

Repairing the Door Side Airbag Sensor Right Malfunction may require specialized tools and expertise, so it is recommended to seek the assistance of a qualified mechanic or technician to ensure the issue is properly diagnosed and repaired.

9. How much does it typically cost to repair the B1690 code related to the Door Side Airbag Sensor Right Malfunction in a Toyota?

The cost of repairing the B1690 code can vary depending on the exact cause of the malfunction, parts needed for replacement, and labor costs. It is advisable to obtain quotes from different repair shops for an accurate estimate.

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

It is recommended to check with Toyota dealerships or visit the manufacturer's website to inquire about any recalls or service bulletins related to the B1690 code to see if your vehicle may be eligible for free repairs or replacements.

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