B1650 Scion 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 Scion 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.
Code B1650 Scion Description
What are the Possible Causes of the DTC B1650 Scion?
- 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 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 B1650 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.
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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 B1650 Scion Code
1. What are common symptoms of OBDII code B1650 Scion related to the Occupant Classification System Malfunction?
- Common symptoms include the airbag warning light staying on, the passenger airbag being disabled, and the seatbelt warning light illuminating.
2. What are some possible causes of the B1650 OBDII code in a Scion, indicating an Occupant Classification System Malfunction?
- Possible causes include a faulty occupant classification system sensor, damaged wiring or connectors, or a malfunctioning airbag control module.
3. How can I diagnose the B1650 code in my Scion related to the Occupant Classification System Malfunction?
- Diagnosis typically involves using a diagnostic scanner to retrieve the specific fault code, inspecting the occupant classification system components, and testing the sensor for proper functionality.
4. Can I repair the B1650 code related to the Occupant Classification System Malfunction in my Scion at home?
- While some basic checks like inspecting wiring and connectors can be done at home, repairing the issue often requires specialized tools and expertise, so it's recommended to consult a professional mechanic.
5. Is it safe to drive my Scion if the B1650 code indicating an Occupant Classification System Malfunction is present?
- It is not recommended to drive the vehicle with an active airbag system malfunction, as it can compromise your safety in the event of an accident. Have the issue diagnosed and repaired as soon as possible.
6. How much does it typically cost to repair the B1650 code related to the Occupant Classification System Malfunction in a Scion?
- Repair costs can vary depending on the specific cause of the issue, but they can range from a few hundred to over a thousand dollars, including parts and labor.
7. Can resetting the OBDII code B1650 in my Scion fix the Occupant Classification System Malfunction issue?
- Resetting the code may temporarily clear the warning lights, but it will not fix the underlying problem causing the malfunction. It's important to diagnose and repair the issue to ensure proper functionality.
8. Will disconnecting the car battery reset the B1650 code linked to the Occupant Classification System Malfunction in my Scion?
- Disconnecting the battery may clear the code temporarily, but it's not a permanent fix. The code is likely to reappear once the system detects the ongoing issue, so proper diagnosis and repair are necessary.
9. How long does it typically take to repair the B1650 OBDII code related to the Occupant Classification System Malfunction in a Scion?
- The repair time can vary depending on the cause of the issue and the complexity of the repair. It may take a few hours to a full day to diagnose and fix the problem properly.
10. Can a DIY enthusiast with basic automotive knowledge fix the B1650 code related to the Occupant Classification System Malfunction in a Scion?
- While some basic troubleshooting steps can be performed by a DIY enthusiast, due to the complexity and safety implications of airbag systems, it's best to consult a professional mechanic for accurate diagnosis and repair.
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