Engine-Codes.com
Engine-Codes – Toyota – B1642 Toyota

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

Quick Answer

The B1642 diagnostic trouble code for Toyota indicates that there is a communication error with the side satellite sensor bus on the right side of the vehicle. Common causes include Faulty side satellite sensor on the right side, Wiring or connection issues between the sensor and the vehicle's computer, Corrosion or damage to the sensor's connectors. 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 Toyota indicates Lost Communication With Side Satellite Sensor Bus Right.
Common causes
Common causes include Faulty side satellite sensor on the right side, Wiring or connection issues between the sensor and the vehicle's computer, Corrosion or damage to the sensor's connectors.
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 Aug 19, 2024
💬 Need more help? Ask Auto Expert for instant answers — it's free!
AutoCodes App

Fix Your Car Smarter

Try the New AutoCodes App!

Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.

AutoCodes App on Google Play

Code B1642 Toyota Description

The B1642 diagnostic trouble code for Toyota indicates that there is a communication error with the side satellite sensor bus on the right side of the vehicle. This sensor is a crucial component of the vehicle's safety system, as it helps monitor and control various safety features such as airbags and stability control. When communication is lost with this sensor, it can lead to a malfunction in these safety systems, potentially compromising the vehicle's ability to protect occupants in the event of a collision.

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

Common Causes of B1642 Toyota

  1. Faulty side satellite sensor on the right side
  2. Wiring or connection issues between the sensor and the vehicle's computer
  3. Corrosion or damage to the sensor's connectors
  4. Software or programming issues in the vehicle's control module
  5. Impact or damage to the sensor due to a collision or accident

Symptoms of B1642 Toyota

  1. Airbag warning light illuminated on the dash
  2. Stability control system malfunction
  3. Inaccurate or erratic readings from the right side satellite sensor
  4. Loss of communication with other safety systems
  5. Vehicle may fail to pass state inspection due to safety system issues

How to Fix B1642 Toyota

  1. Begin by conducting a thorough inspection of the side satellite sensor and its wiring for any visible damage or corrosion.
  2. Check for any loose connections or broken wires that may be causing the communication error.
  3. Use a diagnostic scan tool to reset the error code and attempt to reestablish communication with the sensor.
  4. If the issue persists, consider replacing the side satellite sensor with a new unit to ensure proper functionality.
  5. After completing the repair, perform a comprehensive test drive to confirm that the issue has been resolved and that all safety systems are functioning properly.

Cost to Fix B1642 Toyota

The cost of repairing a lost communication issue with the side satellite sensor bus right on a Toyota can vary depending on the exact cause of the problem and the specific model of the vehicle. In general, the cost of parts for a new side satellite sensor can range from $200 to $500, while labor costs for diagnosis and repair can add an additional $100 to $300. Overall, the total repair cost could be anywhere from $300 to $800. It is recommended to consult with a qualified mechanic or dealership for a more accurate estimate based on your specific situation and location.

Need more information about the B1642 Toyota code?

Need more information on how to fix the B1642 Toyota code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1642 Toyota code diagnosed by a professional: Find a repair shop in your area

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 B1642 Toyota Code

1. What are the common symptoms of OBDII code B1642 in a Toyota related to the Side Satellite Sensor Bus Right?

- Common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the vehicle's airbag system.

2. What are some possible causes of OBDII code B1642 in a Toyota indicating Lost Communication With Side Satellite Sensor Bus Right?

- Possible causes may include a faulty side satellite sensor, damaged wiring or connectors, a communication error within the airbag system, or a malfunctioning control module.

3. How can I diagnose the issue related to OBDII code B1642 in a Toyota?

- Diagnosis typically involves using an OBDII scanner to read the code, inspecting the side satellite sensor and its connections, checking the wiring for damage, and conducting a thorough airbag system inspection.

4. Is it safe to drive my Toyota with the OBDII code B1642 active?

- It is not recommended to drive the vehicle with an active airbag-related fault code like B1642, as it may indicate potential issues with the airbag system's functionality in the event of a collision.

5. How can I repair OBDII code B1642 in a Toyota indicating Lost Communication With Side Satellite Sensor Bus Right?

- Repair options may include replacing the faulty side satellite sensor, repairing damaged wiring or connectors, resetting the airbag system, or seeking assistance from a professional mechanic.

6. Can I reset the OBDII code B1642 in my Toyota without fixing the underlying issue?

- While you can clear the code using an OBDII scanner, it is crucial to address the root cause of the problem to ensure the proper functioning of the airbag system.

7. Are there any safety precautions I should take when working on the airbag system related to OBDII code B1642 in a Toyota?

- Safety precautions include disconnecting the vehicle's battery, waiting for the airbag system to discharge, and avoiding direct contact with airbag components to prevent accidental deployment.

8. How much does it typically cost to repair OBDII code B1642 in a Toyota at a dealership or repair shop?

- Repair costs can vary depending on the specific issue, parts needed, labor rates, and dealership or repair shop pricing. It is advisable to obtain multiple quotes for comparison.

9. Can a DIY enthusiast with automotive knowledge fix OBDII code B1642 in a Toyota, or is it best left to professionals?

- While some experienced DIY enthusiasts may be able to address simpler issues like checking connections or replacing sensors, dealing with the airbag system and safety components is best left to professional technicians.

10. Will fixing OBDII code B1642 in a Toyota require reprogramming or recalibrating any components?

- Depending on the repair performed, it may be necessary to reprogram or recalibrate certain components within the airbag system to ensure proper functionality and clear the fault code.

Discuss the causes and fixes for B1642 Toyota OBDII Code

Submit a New Comment

Code B1642 Toyota comments

No comments found for this page.