AutoCodes – Toyota – B1642 2018 Toyota RAV4

B1642 2018 Toyota RAV4 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 2018 Toyota RAV4 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.

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Code Popularity 268

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

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Table of contents Created and updated by William Orellana on Oct 10, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1642 2018 Toyota RAV4 Description

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. The Side Airbag Sensor RH and Rear Airbag Sensor RH detect impacts to the vehicle and send signals to the Center Airbag Sensor Assembly to determine if the airbag should be deployed. The Diagnostic Trouble Code (DTC) is stored when a malfunction is detected for the Side Collision Sensor RH circuit (to determine deployment of the Front Seat Side Airbag Assembly RH and Curtain Shield Airbag Assembly RH).

OBDII Code B1642 2018 Toyota RAV4 - Lost Communication With Side Satellite Sensor Bus Right - AutoCodes.com — B1642 2018 Toyota RAV4 Code - Lost Communication With Side Satellite Sensor Bus Right

What does this mean?

What are the Possible Causes of the DTC B1642 2018 Toyota RAV4?

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 2018 Toyota RAV4?

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 2018 Toyota RAV4 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 2018 Toyota RAV4 code?

Need more information on how to fix the B1642 2018 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1642 2018 Toyota RAV4 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 B1642 2018 Toyota RAV4 Code

1. What are the common symptoms of OBDII code B1642 in a 2018 Toyota RAV4?

- Common symptoms include the airbag warning light coming on, loss of communication with the side satellite sensor on the right side of the vehicle, and possible issues with the airbag system.

2. What can cause the OBDII code B1642 in a 2018 Toyota RAV4?

- The code B1642 is typically triggered by a communication error between the airbag control module and the side satellite sensor on the right side of the vehicle. This can be caused by wiring issues, a faulty sensor, or a malfunction in the airbag control module.

3. How can I diagnose the OBDII code B1642 in my 2018 Toyota RAV4?

- Diagnosing this code usually involves checking the wiring connections between the airbag control module and the side satellite sensor, testing the sensor itself for proper function, and scanning the system for any other related trouble codes.

4. Can I drive my 2018 Toyota RAV4 with the OBDII code B1642?

- It's not recommended to drive the vehicle with the B1642 code present, as it indicates a potential issue with the airbag system. Driving with a faulty airbag system can compromise your safety in the event of a collision.

5. How can I repair the OBDII code B1642 in my 2018 Toyota RAV4?

- Repairing the B1642 code may involve fixing any wiring issues, replacing the side satellite sensor on the right side of the vehicle if necessary, or reprogramming the airbag control module to establish proper communication.

6. Is the OBDII code B1642 in a 2018 Toyota RAV4 a serious issue?

- Yes, the B1642 code is a serious issue as it relates to the airbag system. It's crucial to address this problem promptly to ensure the proper function of the airbags in case of an accident.

7. How much does it typically cost to fix the OBDII code B1642 in a 2018 Toyota RAV4?

- The cost of fixing the B1642 code can vary depending on the root cause of the issue. It may range from a simple wiring repair to a sensor replacement, so it's best to consult a professional for an accurate estimate.

8. Can I reset the OBDII code B1642 in my 2018 Toyota RAV4 on my own?

- While you can clear the code with an OBDII scanner, it's important to address the underlying issue causing the B1642 code to prevent it from recurring. Simply clearing the code without fixing the problem may lead to safety concerns.

9. Are there any recalls or service bulletins related to the OBDII code B1642 in a 2018 Toyota RAV4?

- It's advisable to check with a Toyota dealership or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any recalls or service bulletins related to the B1642 code for the 2018 Toyota RAV4.

10. How long does it typically take to repair the OBDII code B1642 in a 2018 Toyota RAV4?

- The repair time for the B1642 code can vary based on the complexity of the issue. Simple fixes like wiring repairs may take less time, while replacing components or reprogramming modules could extend the repair duration.