AutoCodes – Toyota – B1650 2015 Toyota RAV4

B1650 2015 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 2015 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 557

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 11, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1650 2015 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 2015 Toyota RAV4 - Occupant Classification System Malfunction - AutoCodes.com — B1650 2015 Toyota RAV4 Code - Occupant Classification System Malfunction

What does this mean?

What are the Possible Causes of the DTC B1650 2015 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 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 B1650 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 B1650 2015 Toyota RAV4 code?

Need more information on how to fix the B1650 2015 Toyota RAV4 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1650 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 B1650 2015 Toyota RAV4 Code

1. What are the common symptoms of OBDII code B1650 in a 2015 Toyota RAV4?

The common symptoms include the airbag warning light staying illuminated on the dashboard and potential issues with the vehicle's airbag system.

2. What does the OBDII code B1650 indicate in a 2015 Toyota RAV4?

OBDII code B1650 indicates a malfunction in the Occupant Classification System (OCS) of the vehicle, which is crucial for proper airbag deployment.

3. What are the possible causes of the Occupant Classification System malfunction in a 2015 Toyota RAV4?

Common causes of the OCS malfunction include a faulty seat weight sensor, damaged wiring connections, or a malfunctioning airbag control module.

4. How can I diagnose the OBDII code B1650 issue in my 2015 Toyota RAV4?

Diagnosing the issue involves using an OBDII scanner to retrieve the specific fault code, inspecting the seat weight sensor and related wiring, and checking the airbag control module for any faults.

5. Can I continue driving my 2015 Toyota RAV4 with the OBDII code B1650 present?

It is not recommended to continue driving the vehicle with the B1650 code present, as it indicates a potential issue with the airbag system, which could affect its functionality in the event of a collision.

6. How can I repair the Occupant Classification System malfunction in my 2015 Toyota RAV4?

Repairing the OCS malfunction may involve replacing the faulty seat weight sensor, repairing damaged wiring connections, or resetting the airbag control module after addressing the underlying issue.

7. Is it possible to reset the OBDII code B1650 in a 2015 Toyota RAV4 without fixing the underlying problem?

While it is possible to clear the fault code temporarily, it is essential to address the root cause of the issue to ensure the proper functioning of the airbag system.

8. Are there any recalls or technical service bulletins related to the OBDII code B1650 in the 2015 Toyota RAV4?

It is recommended to check with a Toyota dealership or visit the NHTSA website to see if there are any recalls or technical service bulletins related to the B1650 code in the 2015 RAV4.

9. Can a DIY enthusiast repair the OCS malfunction causing the OBDII code B1650 in a 2015 Toyota RAV4?

While some basic inspections and repairs may be possible for a DIY enthusiast, diagnosing and repairing complex airbag system issues like the OCS malfunction should be done by a qualified technician.

10. How much can I expect to pay for repairing the Occupant Classification System malfunction in my 2015 Toyota RAV4?

The cost of repairing the OCS malfunction can vary depending on the specific issue, parts needed for replacement, and labor costs. It is advisable to obtain quotes from reputable repair shops or dealerships for an accurate estimate.