AutoCodes – Toyota – B1647 2015 Toyota RAV4

B1647 2015 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 2015 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.

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Code Popularity 243

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 B1647 2015 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 2015 Toyota RAV4 - Lost Communication With Side Satellite Sensor Bus Left - AutoCodes.com — B1647 2015 Toyota RAV4 Code - Lost Communication With Side Satellite Sensor Bus Left

What does this mean?

What are the Possible Causes of the DTC B1647 2015 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 2015 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 2015 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 2015 Toyota RAV4 code?

Need more information on how to fix the B1647 2015 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1647 2015 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 2015 Toyota RAV4 Code

1. What are the common symptoms of OBDII code B1647 in a 2015 Toyota RAV4?

The common symptoms include the malfunction indicator light (MIL) illuminating on the dashboard, issues with the side satellite sensor system on the left side of the vehicle, and potential problems with the vehicle's safety systems.

2. What does the OBDII code B1647 "Lost Communication With Side Satellite Sensor Bus Left" mean in a 2015 Toyota RAV4?

This code indicates that there is a communication error between the vehicle's onboard computer and the left side satellite sensor bus responsible for monitoring and controlling safety features.

3. What are the possible causes of OBDII code B1647 in a 2015 Toyota RAV4?

Possible causes include damaged wiring or connectors related to the left side satellite sensor bus, a faulty side satellite sensor, a malfunctioning control module, or software issues.

4. How can I diagnose OBDII code B1647 in my 2015 Toyota RAV4?

Diagnosis typically involves using an OBDII scanner to retrieve the specific error code, inspecting the wiring and connectors for damage, testing the side satellite sensor and control module, and performing any necessary software updates.

5. Can I still drive my 2015 Toyota RAV4 with OBDII code B1647 present?

It is not recommended to continue driving the vehicle with this code active, as it may affect the proper functioning of safety systems related to the side satellite sensor on the left side of the vehicle.

6. How can I repair OBDII code B1647 in my 2015 Toyota RAV4?

Repair options may include repairing or replacing damaged wiring or connectors, replacing the side satellite sensor or control module if faulty, and ensuring that all components are properly connected and functioning.

7. Will resetting the OBDII code B1647 in my 2015 Toyota RAV4 make it go away permanently?

Simply resetting the code may temporarily clear the MIL, but if the underlying issue causing the communication error is not addressed, the code is likely to reappear. It's important to diagnose and fix the root cause of the problem.

8. How much does it typically cost to repair OBDII code B1647 in a 2015 Toyota RAV4?

The cost of repair can vary depending on the specific cause of the issue, the parts needed for replacement, and labor costs. It's recommended to consult with a professional mechanic for an accurate estimate.

9. Can extreme weather conditions or rough driving cause OBDII code B1647 to trigger in a 2015 Toyota RAV4?

While extreme conditions may potentially affect the vehicle's electrical systems, the code is more likely to be triggered by underlying issues such as damaged wiring, faulty components, or software glitches rather than external factors.

10. Is it possible to prevent OBDII code B1647 from occurring in my 2015 Toyota RAV4?

Regular maintenance, including checking the wiring and connectors for wear or damage, can help prevent issues that may lead to this code. Promptly addressing any warning lights or unusual symptoms can also help prevent more serious problems.