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Engine-Codes – Scion – B1642 Scion

B1642 Scion Code - Lost Communication With Side Satellite Sensor Bus Right

Quick Answer

The B1642 Scion diagnostic trouble code indicates that there is a communication failure with the side satellite sensor bus on the right side of the vehicle. Common causes include Faulty wiring or connectors in the side satellite sensor bus system, Malfunctioning sensor module on the right side of the vehicle, Issues with the electronic control unit (ECU) that controls the communication with the sensor bus. 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
B1642 Scion indicates Lost Communication With Side Satellite Sensor Bus Right.
Common causes
Common causes include Faulty wiring or connectors in the side satellite sensor bus system, Malfunctioning sensor module on the right side of the vehicle, Issues with the electronic control unit (ECU) that controls the communication with the sensor bus.
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 07, 2024
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Code B1642 Scion Description

The B1642 Scion diagnostic trouble code indicates that there is a communication failure with the side satellite sensor bus on the right side of the vehicle. This sensor bus is responsible for transmitting vital information related to the vehicle's safety systems, such as airbag deployment, traction control, and stability control. When communication is lost with this sensor bus, it can lead to a variety of safety and performance issues.

OBDII Code B1642 Scion - Lost Communication With Side Satellite Sensor Bus Right
B1642 Scion Code - Lost Communication With Side Satellite Sensor Bus Right

Common Causes of B1642 Scion

  1. Faulty wiring or connectors in the side satellite sensor bus system.
  2. Malfunctioning sensor module on the right side of the vehicle.
  3. Issues with the electronic control unit (ECU) that controls the communication with the sensor bus.
  4. Water damage or corrosion affecting the sensor bus components.
  5. Physical damage to the sensor bus or related components due to accidents or impacts.

Symptoms of B1642 Scion

  1. Illumination of the airbag warning light on the dashboard.
  2. Inability to deploy airbags in the event of a collision.
  3. Erratic behavior of stability control and traction control systems.
  4. Increased fuel consumption.
  5. Reduced overall driving safety.

How to Fix B1642 Scion

  1. Begin by conducting a thorough inspection of the side satellite sensor bus wiring and connectors to identify any visible damage or wear. Repair or replace any damaged components as needed.
  2. Test the sensor module on the right side of the vehicle to determine if it is functioning correctly. Replace the module if necessary.
  3. Check the electronic control unit (ECU) for any faults or errors related to the communication with the sensor bus. Reset or replace the ECU as required.
  4. Inspect for any signs of water damage or corrosion in the sensor bus system. Clean and dry the affected components, and replace any damaged parts.
  5. Clear the diagnostic trouble code from the vehicle's system using a scan tool, and perform a test drive to ensure that the communication with the side satellite sensor bus is restored.

Cost to Fix B1642 Scion

The cost of repairing a communication failure with the side satellite sensor bus on a Scion vehicle can vary depending on the specific cause of the issue and the extent of the damage. In general, parts and labor for this type of repair can range from $200 to $800. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to obtain quotes from multiple sources to get a more accurate estimate. Additionally, factors such as the vehicle's make and model, location, and engine type can also impact the final repair costs.

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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 B1642 Scion Code

1. What are the common symptoms of OBDII code B1642 in a Scion related to the "Lost Communication With Side Satellite Sensor Bus Right" issue?

- Common symptoms include the airbag warning light staying illuminated on the dashboard, malfunctioning airbag systems, and potential loss of communication with the right side satellite sensor.

2. What are the possible causes of OBDII code B1642 in a Scion indicating a communication loss with the side satellite sensor bus on the right side?

- The code B1642 can be triggered by issues such as faulty wiring connections, a defective side satellite sensor on the right side, or a problem with the vehicle's electronic control unit (ECU).

3. How can I diagnose the OBDII code B1642 in my Scion when it shows a communication error with the right side satellite sensor bus?

- To diagnose this issue, you can start by checking the wiring connections, inspecting the right side satellite sensor for any damage, and using a diagnostic scanner to read and clear the error code.

4. Is it safe to drive my Scion with the OBDII code B1642 indicating a communication problem with the right side satellite sensor bus?

- It is not recommended to drive the vehicle with unresolved airbag system issues. It is important to address the problem promptly to ensure the safety features like airbags function correctly in case of an accident.

5. Can I reset the OBDII code B1642 in my Scion by disconnecting the battery, or do I need to fix the underlying issue first?

- While disconnecting the battery may temporarily clear the code, it is crucial to address the root cause of the communication problem with the right side satellite sensor bus to prevent the code from reoccurring.

6. Are there any DIY repair tips for resolving the OBDII code B1642 related to the lost communication with the side satellite sensor bus on the right side in a Scion?

- DIY repair tips may include checking and repairing any damaged wiring, ensuring proper connections to the right side satellite sensor, and consulting the vehicle's service manual for specific troubleshooting steps.

7. How much does it typically cost to repair the OBDII code B1642 in a Scion caused by a communication issue with the right side satellite sensor bus?

- The cost of repair can vary depending on the specific cause of the communication problem. It may involve replacing the side satellite sensor, repairing wiring issues, or addressing ECU malfunctions, so costs can range from a few hundred to over a thousand dollars.

8. Can a mechanic help me fix the OBDII code B1642 in my Scion, or do I need to visit a dealership for this specific issue?

- A qualified mechanic with experience in diagnosing and repairing airbag system issues should be able to address the code B1642 related to the lost communication with the side satellite sensor bus on the right side. Dealerships may also provide specialized assistance for this problem.

9. Will ignoring the OBDII code B1642 in my Scion impact the overall safety of the vehicle, especially concerning the airbag system?

- Ignoring the code B1642 related to the communication loss with the right side satellite sensor bus can compromise the functionality of the airbag system, potentially leading to non-deployment or malfunction of the airbags in case of an accident, endangering the vehicle occupants' safety.

10. How can I prevent the OBDII code B1642 from recurring in my Scion after repairing the communication issue with the right side satellite sensor bus?

- To prevent the code from reoccurring, ensure all repairs are done correctly, follow proper diagnostic procedures, and conduct regular maintenance checks on the airbag system to detect and address any potential issues promptly.

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