B1647 2017 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 2017 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.
Code B1647 2017 Toyota RAV4 Description
What are the Possible Causes of the DTC B1647 2017 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 2017 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 2017 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 2017 Toyota RAV4 code?
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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 B1647 2017 Toyota RAV4 Code
1. What are the common symptoms of OBDII code B1647 in a 2017 Toyota RAV4?
- Common symptoms include the airbag warning light illuminating on the dashboard, loss of communication with the side satellite sensor bus on the left side, and potential issues with the vehicle's airbag system.
2. What can cause the OBDII code B1647 in a 2017 Toyota RAV4?
- The code B1647 is typically triggered by a communication error between the vehicle's onboard diagnostic system and the left side satellite sensor bus, which may be due to wiring issues, sensor malfunctions, or electronic module failures.
3. How can I diagnose the OBDII code B1647 in my 2017 Toyota RAV4?
- Diagnosis involves using a diagnostic scanner to retrieve the specific fault code, checking the wiring and connections related to the left side satellite sensor bus, and testing the sensors and electronic modules for proper functionality.
4. Are there any DIY repair tips for resolving code B1647 in a 2017 Toyota RAV4?
- DIY repair tips may include checking and repairing any damaged wiring or loose connections related to the left side satellite sensor bus, resetting the airbag system, and clearing the fault code using a diagnostic scanner.
5. Is it safe to drive my 2017 Toyota RAV4 with the OBDII code B1647 active?
- It is not recommended to drive the vehicle with an active B1647 code, as it indicates a potential issue with the airbag system's communication on the left side, which could affect the system's proper functioning in the event of a collision.
6. Can resetting the OBDII code B1647 in my 2017 Toyota RAV4 fix the issue?
- Resetting the code may temporarily clear the warning light, but if the underlying issue causing the B1647 code is not addressed and fixed, the code is likely to reappear, indicating an ongoing problem with the airbag system.
7. How much does it typically cost to repair OBDII code B1647 in a 2017 Toyota RAV4?
- The cost of repairing the B1647 code can vary depending on the specific cause of the issue. It may involve simple fixes like repairing wiring or connector issues, or more complex repairs such as replacing sensors or electronic modules, which can increase the cost.
8. Can a mechanic easily fix the OBDII code B1647 in a 2017 Toyota RAV4?
- A qualified mechanic with experience in diagnosing and repairing airbag system issues should be able to address and fix the B1647 code in a 2017 Toyota RAV4 efficiently by following proper diagnostic procedures and utilizing the necessary tools and expertise.
9. Will ignoring the OBDII code B1647 in my 2017 Toyota RAV4 cause any long-term problems?
- Ignoring the B1647 code may result in potential safety risks, as it indicates a communication issue with the airbag system on the left side. It is essential to address and resolve the underlying problem to ensure the proper functioning of the airbag system in the vehicle.
10. Can extreme weather conditions affect the occurrence of OBDII code B1647 in a 2017 Toyota RAV4?
- Extreme weather conditions, especially temperature fluctuations, can potentially impact the electrical connections and components related to the airbag system, including the left side satellite sensor bus, which may contribute to triggering the B1647 fault code. Regular maintenance and inspection can help mitigate such issues.
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