B1642 Lexus Code - Lost Communication With Side Satellite Sensor Bus Right
Quick Answer
The B1642 diagnostic trouble code for Lexus vehicles indicates that there is a communication issue with the side satellite sensor bus located on the right side of the vehicle. Common causes include Damaged wiring or connectors leading to the side satellite sensor bus, Faulty side satellite sensor module, Corrosion or water damage affecting the sensor bus components. 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 Lexus indicates Lost Communication With Side Satellite Sensor Bus Right.
- Common causes
- Common causes include Damaged wiring or connectors leading to the side satellite sensor bus, Faulty side satellite sensor module, Corrosion or water damage affecting the sensor bus components.
- 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 B1642 Lexus Description
The B1642 diagnostic trouble code for Lexus vehicles indicates that there is a communication issue with the side satellite sensor bus located on the right side of the vehicle. This sensor bus is responsible for transmitting data related to the vehicle's safety systems, such as airbags, collision detection, and stability control. When communication is lost with this sensor bus, it can lead to a variety of safety-related issues and malfunctions within the vehicle.
Common Causes of B1642 Lexus
- Damaged wiring or connectors leading to the side satellite sensor bus.
- Faulty side satellite sensor module.
- Corrosion or water damage affecting the sensor bus components.
- Issues with the vehicle's electronic control unit (ECU).
- Impact or collision that damaged the sensor bus components.
Symptoms of B1642 Lexus
- Airbag warning light illuminated on the dashboard.
- Stability control system warning light activated.
- Inability to engage certain safety features, such as lane departure warning or collision avoidance.
- Erratic behavior of the vehicle's safety systems.
- Diagnostic trouble code B1642 stored in the vehicle's computer system.
How to Fix B1642 Lexus
- Begin by conducting a thorough visual inspection of the wiring and connectors associated with the side satellite sensor bus. Repair or replace any damaged components.
- Check the side satellite sensor module for proper functionality. Replace if necessary.
- Inspect the sensor bus components for corrosion or water damage. Clean or replace affected parts.
- Perform a diagnostic scan of the vehicle's computer system to clear the B1642 trouble code and ensure proper communication with the side satellite sensor bus.
- Test the vehicle's safety systems to verify that the issue has been resolved and that all features are functioning correctly.
Cost to Fix B1642 Lexus
The typical repair costs for addressing a lost communication issue with the side satellite sensor bus on a Lexus vehicle can range from $200 to $500, including parts and labor. However, it is essential to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, with rates potentially higher in metropolitan areas or at dealerships, and lower at independent shops. It is advisable to obtain local estimates for a more accurate cost assessment.
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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.
Frequently Asked Questions about B1642 Lexus Code
1. What are the common symptoms of OBDII code B1642 "Lost Communication With Side Satellite Sensor Bus Right" in a Lexus?
- Common symptoms include the airbag warning light illuminating on the dashboard, loss of communication with the side satellite sensor on the right side of the vehicle, and potential issues with the airbag system's functionality.
2. What are the possible causes of OBDII code B1642 in a Lexus?
- The code B1642 can be triggered by issues such as a faulty side satellite sensor on the right side, damaged wiring or connectors related to the sensor, a communication error within the airbag system, or a malfunction in the airbag control module.
3. How can I diagnose the cause of OBDII code B1642 in my Lexus?
- Diagnosing the code involves using a diagnostic scan tool to retrieve the specific fault codes present in the airbag system, inspecting the wiring and connectors for any damage, testing the side satellite sensor on the right side, and checking the airbag control module for communication errors.
4. What are some recommended repair tips for resolving OBDII code B1642 in a Lexus?
- Repair tips may include repairing or replacing damaged wiring and connectors, recalibrating or replacing the side satellite sensor on the right side, resetting the airbag system codes using a scan tool, and ensuring proper communication between system components.
5. Can I reset the OBDII code B1642 in my Lexus without fixing the underlying issue?
- While you can clear the code temporarily using a scan tool, it is not recommended to reset the code without addressing the root cause, as it may lead to safety risks and the airbag system not functioning properly in the event of an accident.
6. Is it safe to drive my Lexus with OBDII code B1642 present?
- It is not advisable to drive the vehicle with the code B1642 active, as it indicates a communication failure with an essential safety component like the side satellite sensor. It is recommended to have the issue diagnosed and repaired promptly.
7. How much does it typically cost to repair OBDII code B1642 in a Lexus?
- The cost of repairing OBDII code B1642 can vary depending on the specific cause of the issue, the extent of the repairs needed, and the labor rates of the repair shop. It is best to consult with a professional technician for an accurate estimate.
8. Can I fix OBDII code B1642 in my Lexus by myself, or do I need to take it to a professional mechanic?
- Repairing OBDII code B1642 may require specialized tools and knowledge of airbag systems, so it is recommended to seek help from a professional mechanic or technician experienced in diagnosing and repairing airbag-related issues.
9. How long does it typically take to repair OBDII code B1642 in a Lexus?
- The repair time for OBDII code B1642 can vary depending on the exact cause of the issue, the availability of parts, and the expertise of the technician. In some cases, the repair may be completed within a few hours, while more complex issues may take longer.
10. Are there any recalls or technical service bulletins related to OBDII code B1642 in Lexus vehicles?
- It is advisable to check with a Lexus dealership or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any recalls or technical service bulletins related to OBDII code B1642 in your specific Lexus model.
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