B1642 Lexus Code - Lost Communication With Side Satellite Sensor Bus Right
Quick Answer
The Side Collision Sensor Right (RH) circuit (to determine deployment of the Front Seat Side Airbag Assembly RH and Curtain Shield Airbag Assembly RH) is composed of the Center Airbag Sensor Assembly, Side Airbag Sensor RH, and Rear Airbag Sensor RH. Common causes include Faulty Side Airbag Sensor Right (RH), Faulty Rear Airbag Sensor Right (RH), Side Airbag Sensor Right harness is open or shorted. 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 Faulty Side Airbag Sensor Right (RH), Faulty Rear Airbag Sensor Right (RH), Side Airbag Sensor Right harness is open or shorted.
- 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.
Code B1642 Lexus Description
What are the Possible Causes of the DTC B1642 Lexus?
- Faulty Side Airbag Sensor Right (RH)
- Faulty Rear Airbag Sensor Right (RH)
- Side Airbag Sensor Right harness is open or shorted
- Side Airbag Sensor Right circuit poor electrical connection
- Faulty Center Airbag Sensor Assembly
How to Fix the DTC B1642 Lexus?
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 B1642 Lexus 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 B1642 Lexus code?
Need more information on how to fix the B1642 Lexus code? Get Access to Factory Service Manuals
Need Help with the Code?
Get the B1642 Lexus 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.
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.
Discuss the causes and fixes for B1642 Lexus OBDII Code
Code B1642 Lexus comments
No comments found for this page.
Fix Your Car Smarter
Try the New AutoCodes App!
Get complete OBDII diagnostics, repair solutions, and cost estimates, plus AI chat support on demand.
