AutoCodesToyota – B1694 Toyota

B1694 Toyota Code - Side Satellite Sensor 2 Bus RH Initialization Incomplete

Quick Answer

The Rear Floor Airbag Sensor circuit consists of the Center Airbag Sensor and Rear Floor Airbag Sensor. 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
B1694 Toyota indicates Side Satellite Sensor 2 Bus RH Initialization Incomplete.
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 3,495
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Jun 19, 2019
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Code B1694 Toyota Description

The Rear Floor Airbag Sensor circuit consists of the Center Airbag Sensor and Rear Floor Airbag Sensor. The Rear Floor Airbag Sensor detects impacts to the vehicle and sends signals to the Center Airbag Sensor to determine if the airbag should be deployed. The Diagnostic Trouble Code (DTC) B1694 is stored when a malfunction is detected in the Rear Floor Airbag Sensor circuit.
OBDII Code B1694 Toyota - Side Satellite Sensor 2 Bus RH Initialization Incomplete - AutoCodes.com
B1694 Toyota Code - Side Satellite Sensor 2 Bus RH Initialization Incomplete

What are the Possible Causes of the DTC B1694 Toyota?

  • 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 Assembly

How to Fix the DTC B1694 Toyota?

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 B1694 Toyota 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 B1694 Toyota code?

Need more information on how to fix the B1694 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1694 Toyota 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 B1694 Toyota Code

1. What are the common symptoms of OBDII code B1694 Toyota (Side Satellite Sensor 2 Bus RH Initialization Incomplete)?

The common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the side airbag system.

2. What can cause the OBDII code B1694 Toyota to trigger?

This code is typically triggered when the side satellite sensor 2 on the right-hand side of the vehicle fails to initialize properly during the self-check process.

3. How serious is the OBDII code B1694 Toyota?

This code indicates a potential issue with the side airbag system, which is a critical safety component. It is important to address this code promptly to ensure the proper functioning of the airbag system in the event of a collision.

4. What should I do if the OBDII code B1694 Toyota is triggered?

If this code is triggered, it is recommended to have the vehicle inspected by a qualified technician to diagnose the exact cause of the initialization failure and perform any necessary repairs.

5. Can I continue driving my vehicle with the OBDII code B1694 Toyota present?

It is not advisable to continue driving the vehicle with this code present, as it indicates a potential issue with the side airbag system. Continuing to drive the vehicle without addressing the problem may compromise safety in the event of a collision.

6. How can the OBDII code B1694 Toyota be repaired?

Repairing this code typically involves diagnosing the side satellite sensor 2 on the right-hand side of the vehicle to determine the cause of the initialization failure. The sensor may need to be recalibrated or replaced to resolve the issue.

7. Is it possible to reset the OBDII code B1694 Toyota without repairs?

While clearing the error code may temporarily turn off the warning light, it is crucial to address the underlying issue causing the initialization failure to ensure the proper functioning of the side airbag system.

8. Are there any DIY repair tips for the OBDII code B1694 Toyota?

Due to the critical nature of the side airbag system, it is recommended to have a qualified technician diagnose and repair the issue. DIY repairs on airbag systems can be complex and may compromise safety if not done correctly.

9. How much does it cost to repair the OBDII code B1694 Toyota?

The cost of repairing this code can vary depending on the exact cause of the initialization failure and the necessary repairs. It is best to consult a technician for an accurate diagnosis and cost estimate.

10. Can the OBDII code B1694 Toyota affect the overall safety of the vehicle?

Yes, this code can affect the overall safety of the vehicle by indicating a malfunction in the side airbag system. It is important to address this code promptly to ensure the airbags deploy correctly in the event of a collision.

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