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B1697 Toyota Code - Lost Communication with Door Side Airbag Sensor Left

Quick Answer

The B1697 diagnostic trouble code for Toyota vehicles indicates that there is a communication issue with the door side airbag sensor located on the left side of the vehicle. Common causes include Damaged wiring or connectors leading to the door side airbag sensor, Faulty door side airbag sensor on the left side of the vehicle, Communication error within the vehicle's airbag system. 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
B1697 Toyota indicates Lost Communication with Door Side Airbag Sensor Left.
Common causes
Common causes include Damaged wiring or connectors leading to the door side airbag sensor, Faulty door side airbag sensor on the left side of the vehicle, Communication error within the vehicle's airbag system.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 12, 2024
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Code B1697 Toyota Description

The B1697 diagnostic trouble code for Toyota vehicles indicates that there is a communication issue with the door side airbag sensor located on the left side of the vehicle. This sensor is responsible for detecting impacts or collisions on the left side of the vehicle and deploying the side airbag to provide additional protection to the occupants. When communication with this sensor is lost, it can compromise the effectiveness of the airbag system and potentially put the occupants at risk in the event of a side impact collision.

OBDII Code B1697 Toyota - Lost Communication with Door Side Airbag Sensor Left
B1697 Toyota Code - Lost Communication with Door Side Airbag Sensor Left

Common Causes of B1697 Toyota

  1. Damaged wiring or connectors leading to the door side airbag sensor.
  2. Faulty door side airbag sensor on the left side of the vehicle.
  3. Communication error within the vehicle's airbag system.
  4. Corrosion or moisture affecting the sensor's connections.
  5. Impact or collision that may have damaged the sensor or wiring.

Symptoms of B1697 Toyota

  1. Airbag warning light illuminated on the dashboard.
  2. Left side airbag may not deploy in the event of a collision.
  3. Loss of communication with the left side airbag sensor.
  4. Diagnostic trouble code B1697 stored in the vehicle's computer system.

How to Fix B1697 Toyota

  1. Begin by conducting a thorough inspection of the wiring and connectors leading to the door side airbag sensor on the left side of the vehicle.
  2. Test the door side airbag sensor for proper functionality and communication with the vehicle's airbag system.
  3. Replace any damaged wiring or connectors and ensure proper connections are made.
  4. If the sensor is found to be faulty, replace it with a new one and recalibrate the airbag system.
  5. Clear the diagnostic trouble code from the vehicle's computer system and test the airbag system to ensure proper functioning.

Cost to Fix B1697 Toyota

The typical repair costs for addressing the B1697 code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, replacing damaged wiring or connectors may cost between $100 to $300, while replacing a faulty door side airbag sensor can range from $200 to $500. Labor costs can add an additional $100 to $300, depending on the shop's hourly rates and the complexity of the repair.

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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 B1697 Toyota Code

1. What are the common symptoms of OBDII code B1697 Toyota (Lost Communication with Door Side Airbag Sensor Left)?

The common symptoms include the airbag warning light illuminating on the dashboard, potential non-deployment of the left side airbag in the event of a collision, and diagnostic trouble codes related to the airbag system.

2. What are the possible causes of OBDII code B1697 Toyota?

Possible causes include a loose or damaged wiring harness connecting the airbag sensor to the vehicle's electronic control unit (ECU), a faulty airbag sensor itself, or a communication error within the airbag system.

3. How can I diagnose the issue related to OBDII code B1697 Toyota?

Diagnosis involves using a scan tool to retrieve the specific trouble code, inspecting the wiring harness for any visible damage or loose connections, and testing the door side airbag sensor for proper functionality.

4. Can I repair OBDII code B1697 Toyota on my own?

While diagnosing the issue can be done with basic tools, repairing the problem may require specialized knowledge and equipment. It is recommended to seek assistance from a qualified automotive technician or dealership for proper repair.

5. Is it safe to drive with OBDII code B1697 Toyota active?

Driving with an active airbag system fault code is not recommended as it may compromise the functionality of the airbag system in the event of an accident. It is advisable to address the issue promptly to ensure the safety of vehicle occupants.

6. How much does it typically cost to repair OBDII code B1697 Toyota?

The cost of repairing OBDII code B1697 Toyota can vary depending on the root cause of the issue, the labor rates of the repair shop, and the cost of any replacement parts that may be needed. It is advisable to obtain quotes from different service providers for an accurate estimate.

7. Can resetting the OBDII system clear the B1697 Toyota code?

Resetting the OBDII system may temporarily clear the code, but if the underlying issue causing the code is not addressed, it is likely to reappear. It is important to diagnose and repair the root cause of the problem to prevent the code from returning.

8. What is the role of the door side airbag sensor in the vehicle's safety system?

The door side airbag sensor is responsible for detecting side impacts and triggering the deployment of the left side airbag to help protect occupants in the event of a collision. Proper functioning of this sensor is crucial for the overall safety of the vehicle.

9. Are there any recalls or technical service bulletins related to OBDII code B1697 Toyota?

It is advisable to check with Toyota dealerships or visit the manufacturer's website to see if there are any recalls or technical service bulletins related to OBDII code B1697 Toyota. Manufacturers may provide guidance or assistance for known issues.

10. How can I prevent OBDII code B1697 Toyota from occurring in the future?

Regular maintenance and inspections of the vehicle's airbag system, including checking the wiring harness and sensors for damage, can help prevent issues like OBDII code B1697 Toyota. Following the manufacturer's recommended service schedule is also essential for vehicle safety.

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