AutoCodesToyota – B1650 2014 Toyota RAV4

B1650 2014 Toyota RAV4 Code - Occupant Classification System Malfunction

Quick Answer

The Occupant Classification System circuit consists of the Center Airbag Sensor Assembly and the Occupant Detection ECU. Common causes include Faulty Occupant Detection ECU, Occupant Detection ECU harness is open or shorted, Occupant Detection ECU circuit poor electrical connection. 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
B1650 2014 Toyota RAV4 indicates Occupant Classification System Malfunction.
Common causes
Common causes include Faulty Occupant Detection ECU, Occupant Detection ECU harness is open or shorted, Occupant Detection ECU circuit poor electrical connection.
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 612
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Oct 11, 2022
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Code B1650 2014 Toyota RAV4 Description

The Occupant Classification System circuit consists of the Center Airbag Sensor Assembly and the Occupant Detection ECU. If the Center Airbag Sensor Assembly receives signals from the Occupant Detection ECU, it determines whether the Front Passenger Airbag Assembly, the Front Seat Airbag Assembly Right, and the Front Seat Belt Assembly should be operated. The B1650 code is recorded when a malfunction is detected in the Occupant Classification System circuit.
OBDII Code B1650 2014 Toyota RAV4 - Occupant Classification System Malfunction - AutoCodes.com
B1650 2014 Toyota RAV4 Code - Occupant Classification System Malfunction

What are the Possible Causes of the DTC B1650 2014 Toyota RAV4?

  • Faulty Occupant Detection ECU
  • Occupant Detection ECU harness is open or shorted
  • Occupant Detection ECU circuit poor electrical connection
  • Faulty Center Airbag Sensor Assembly

How to Fix the DTC B1650 2014 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 B1650 2014 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 B1650 2014 Toyota RAV4 code?

Need more information on how to fix the B1650 2014 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1650 2014 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 B1650 2014 Toyota RAV4 Code

1. What is OBDII code B1650 in a 2014 Toyota RAV4?

- OBDII code B1650 indicates a malfunction in the Occupant Classification System (OCS) of the vehicle.

2. What are the common symptoms of an Occupant Classification System malfunction in a Toyota RAV4?

- Common symptoms include the airbag warning light staying illuminated, the passenger airbag being deactivated, and potential issues with seatbelt pretensioners.

3. What are the possible causes of the B1650 OBDII code in a 2014 Toyota RAV4?

- The B1650 code can be triggered by a faulty Occupant Classification System sensor, damaged wiring, a disconnected connector, or a malfunctioning airbag control module.

4. How serious is an Occupant Classification System malfunction in a Toyota RAV4?

- An OCS malfunction is a serious issue as it can affect the proper deployment of airbags in the event of a crash, potentially jeopardizing occupant safety.

5. Can I continue driving my Toyota RAV4 with the B1650 code present?

- It is not recommended to drive the vehicle with the B1650 code present, as the airbag system may not function correctly in the event of an accident.

6. How can I diagnose and repair the B1650 code in my Toyota RAV4?

- Diagnosis and repair of the B1650 code typically involve inspecting the OCS components, checking for damaged wiring, verifying sensor functionality, and resetting the airbag system.

7. Is it possible to reset the B1650 code in a 2014 Toyota RAV4 without fixing the underlying issue?

- While you can clear the code temporarily, it will likely return if the root cause of the Occupant Classification System malfunction is not addressed.

8. Are there any recalls or technical service bulletins related to the B1650 code in the 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 TSBs related to the B1650 code in your specific model year.

9. How much does it typically cost to repair the B1650 code in a 2014 Toyota RAV4?

- Repair costs for the B1650 code can vary depending on the specific issue, but it's recommended to consult a professional mechanic for an accurate diagnosis and cost estimate.

10. Can a DIY enthusiast fix the B1650 code in a Toyota RAV4, or is it best left to a professional?

- While some basic troubleshooting like checking connections and fuses can be done by a DIY enthusiast, diagnosing and repairing the OCS system for the B1650 code is best left to a qualified professional due to safety concerns.

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