AutoCodesToyota – B1647 2016 Toyota RAV4

B1647 2016 Toyota RAV4 Code - Lost Communication With Side Satellite Sensor Bus Left

Quick Answer

The Side Collision Sensor Left (LH) circuit (to determine deployment of the Front Seat Side Airbag Assembly LH and Curtain Shield Airbag Assembly LH) is composed of the Center Airbag Sensor Assembly, Side Airbag Sensor LH, and Rear Airbag Sensor LH. Common causes include Faulty Side Airbag Sensor Left (LH), Faulty Rear Airbag Sensor Left (LH), Side Airbag Sensor Left 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
B1647 2016 Toyota RAV4 indicates Lost Communication With Side Satellite Sensor Bus Left.
Common causes
Common causes include Faulty Side Airbag Sensor Left (LH), Faulty Rear Airbag Sensor Left (LH), Side Airbag Sensor Left 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.
AI answers can be wrong. Verify repairs with testing. Open full chat
Code Popularity 255
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Oct 10, 2022
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Code B1647 2016 Toyota RAV4 Description

The Side Collision Sensor Left (LH) circuit (to determine deployment of the Front Seat Side Airbag Assembly LH and Curtain Shield Airbag Assembly LH) is composed of the Center Airbag Sensor Assembly, Side Airbag Sensor LH, and Rear Airbag Sensor LH. The Side Airbag Sensor LH and Rear Airbag Sensor LH 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 in the Side Collision Sensor LH circuit (to determine deployment of the Front Seat Side Airbag Assembly LH and Curtain Shield Airbag Assembly LH).
OBDII Code B1647 2016 Toyota RAV4 - Lost Communication With Side Satellite Sensor Bus Left - AutoCodes.com
B1647 2016 Toyota RAV4 Code - Lost Communication With Side Satellite Sensor Bus Left

What are the Possible Causes of the DTC B1647 2016 Toyota RAV4?

  • Faulty Side Airbag Sensor Left (LH)
  • Faulty Rear Airbag Sensor Left (LH)
  • Side Airbag Sensor Left harness is open or shorted
  • Side Airbag Sensor Left circuit poor electrical connection
  • Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1647 2016 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 B1647 2016 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 B1647 2016 Toyota RAV4 code?

Need more information on how to fix the B1647 2016 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1647 2016 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 B1647 2016 Toyota RAV4 Code

1. What are the common symptoms of OBDII code B1647 in a 2016 Toyota RAV4?

The common symptoms of code B1647 "Lost Communication With Side Satellite Sensor Bus Left" in a 2016 Toyota RAV4 may include issues with the vehicle's stability control system, ABS system, or airbag system.

2. What can cause the OBDII code B1647 in a 2016 Toyota RAV4?

The code B1647 in a 2016 Toyota RAV4 is typically caused by a communication problem between the vehicle's control modules and the side satellite sensor on the left side of the vehicle.

3. How serious is the OBDII code B1647 in a 2016 Toyota RAV4?

Code B1647 should be addressed promptly as it can affect the proper functioning of important safety systems like stability control and airbags in the vehicle.

4. How can I diagnose the OBDII code B1647 in my 2016 Toyota RAV4?

Diagnosing code B1647 may require the use of a professional OBDII scanner to retrieve the fault codes and pinpoint the exact cause of the communication loss with the side satellite sensor bus left.

5. Can I repair the OBDII code B1647 in my 2016 Toyota RAV4 at home?

While some basic troubleshooting steps can be taken at home, diagnosing and repairing code B1647 may require specialized tools and professional expertise due to the complexity of the vehicle's electronic systems.

6. What are some possible DIY repair tips for OBDII code B1647 in a 2016 Toyota RAV4?

DIY repair tips for code B1647 may include checking and cleaning the connectors, inspecting the wiring for damage, and ensuring proper grounding of the side satellite sensor on the left side of the vehicle.

7. Is it safe to drive with the OBDII code B1647 in a 2016 Toyota RAV4?

It is not recommended to drive with an unresolved B1647 code as it may compromise the vehicle's safety systems. It's best to have the issue diagnosed and repaired as soon as possible.

8. Can a faulty side satellite sensor cause the OBDII code B1647 in a 2016 Toyota RAV4?

Yes, a faulty side satellite sensor on the left side of the vehicle can cause code B1647 due to a loss of communication with the vehicle's control modules.

9. How much does it typically cost to repair the OBDII code B1647 in a 2016 Toyota RAV4?

The cost of repairing code B1647 can vary depending on the exact cause of the communication loss and the labor rates of the repair facility. It's best to consult with a professional mechanic for an accurate estimate.

10. Will resetting the OBDII code B1647 in a 2016 Toyota RAV4 make it go away permanently?

Simply clearing the code without addressing the underlying issue will not solve the problem permanently. It's crucial to diagnose and repair the root cause of code B1647 to prevent it from reoccurring.

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