AutoCodesScion – B1647 Scion

B1647 Scion 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 Scion 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 831
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 Scion 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 Scion - Lost Communication With Side Satellite Sensor Bus Left - AutoCodes.com
B1647 Scion Code - Lost Communication With Side Satellite Sensor Bus Left

What are the Possible Causes of the DTC B1647 Scion?

  • 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 Scion?

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 Scion 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 Scion code?

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

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Get the B1647 Scion 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 Scion Code

1. What are the common symptoms of OBDII code B1647 in a Scion related to the lost communication with the side satellite sensor bus left?

- Common symptoms include the airbag warning light illuminating on the dashboard, issues with the airbag system, and potential loss of communication with the left side satellite sensor.

2. What are the possible causes of OBDII code B1647 in a Scion?

- Causes may include damaged wiring or connectors, a faulty side satellite sensor on the left side, issues with the airbag control module, or a communication error within the system.

3. How can I diagnose OBDII code B1647 in my Scion?

- Diagnosis typically involves using a professional OBDII scanner to retrieve the specific fault code, inspecting the wiring and connectors for damage, and testing the left side satellite sensor for proper functioning.

4. Can I repair OBDII code B1647 in my Scion at home?

- While some DIY enthusiasts may attempt to address this issue at home, it is recommended to consult with a qualified mechanic or dealership due to the complexities of the airbag system and the importance of proper repairs for safety reasons.

5. Is it safe to drive my Scion with OBDII code B1647 present?

- It is not advisable to drive the vehicle with an unresolved airbag system issue such as a lost communication with the side satellite sensor bus left. Safety may be compromised in the event of a collision.

6. How much does it typically cost to repair OBDII code B1647 in a Scion?

- Repair costs can vary depending on the exact cause of the issue, but they may range from a few hundred to over a thousand dollars, including parts and labor.

7. Can resetting the OBDII code B1647 in my Scion make the issue go away permanently?

- Simply resetting the code without addressing the underlying problem will not fix the issue permanently. It is crucial to diagnose and repair the root cause of the communication error.

8. Will OBDII code B1647 cause my Scion to fail an emissions test?

- While the code itself may not directly impact emissions, it is important to resolve any underlying issues with the airbag system to ensure the overall safety and functionality of the vehicle.

9. How long does it typically take to repair OBDII code B1647 in a Scion?

- The repair time can vary depending on the exact cause of the issue and the availability of parts. In some cases, it may be resolved within a few hours, while more complex repairs could take longer.

10. Is there a recall or technical service bulletin related to OBDII code B1647 in Scion vehicles?

- It is recommended to check with the manufacturer or a dealership to inquire about any recalls or technical service bulletins related to OBDII code B1647 and the specific model of your Scion.

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