AutoCodesToyota – B1150 2004 Toyota Highlander

B1150 2004 Toyota Highlander Code - Occupant Classification System Malfunction

Quick Answer

The occupant classification system circuit consists of the Airbag Sensor Assembly Center and the occupant classification system. Common causes include Faulty Occupant classification system, Faulty Airbag Sensor Assembly Center, Right front seat wire. 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
B1150 2004 Toyota Highlander indicates Occupant Classification System Malfunction.
Common causes
Common causes include Faulty Occupant classification system, Faulty Airbag Sensor Assembly Center, Right front seat wire.
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 6,745
How popular is this code, among other codes? Low
Table of contents Created and updated by William Orellana on Nov 19, 2024
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Code B1150 2004 Toyota Highlander Description

The occupant classification system circuit consists of the Airbag Sensor Assembly Center and the occupant classification system. If the airbags sensor assy center receives signals from the occupant classification ECU, it determines whether or not the front passenger airbag assy and the front seat airbag assy sight should be operated.
OBDII Code B1150 2004 Toyota Highlander - Occupant Classification System Malfunction - AutoCodes.com
B1150 2004 Toyota Highlander Code - Occupant Classification System Malfunction

What are the Possible Causes of the DTC B1150 2004 Toyota Highlander?

  • Faulty Occupant classification system
  • Faulty Airbag Sensor Assembly Center
  • Right front seat wire

How to Fix the DTC B1150 2004 Toyota Highlander?

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.

Code Tech Notes

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the B1150 2004 Toyota Highlander 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 B1150 2004 Toyota Highlander code?

Need more information on how to fix the B1150 2004 Toyota Highlander code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1150 2004 Toyota Highlander 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 B1150 2004 Toyota Highlander Code

1. What does the OBDII code B1150 mean on a 2004 Toyota Highlander?

- The code B1150 indicates a malfunction in the Occupant Classification System of the vehicle.

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

- Common symptoms include the airbag warning light staying illuminated, the passenger airbag being deactivated, and potential issues with the seat belt warning system.

3. What are possible causes of the B1150 code in a 2004 Toyota Highlander?

- The code B1150 can be triggered by a fault in the Occupant Classification System sensor mat, wiring issues, or a malfunction in the airbag control module.

4. How serious is the Occupant Classification System malfunction in a Toyota Highlander?

- This issue is serious as it can affect the proper deployment of airbags in the event of a collision, potentially compromising passenger safety.

5. Can I continue to drive my Toyota Highlander with the B1150 code present?

- It is not recommended to drive the vehicle with the Occupant Classification System malfunction as it may impact the effectiveness of the airbag system.

6. How can I diagnose and repair the B1150 code in a 2004 Toyota Highlander?

- Diagnosing and repairing the B1150 code typically involves inspecting the sensor mat, checking the wiring for damage, and possibly recalibrating or replacing the Occupant Classification System components.

7. Is it possible to reset the B1150 code in a Toyota Highlander without fixing the issue?

- While clearing the code may temporarily turn off the warning light, it is crucial to address the underlying problem to ensure the safety systems function properly.

8. Can a DIY enthusiast fix the Occupant Classification System malfunction in a Toyota Highlander?

- Repairing the Occupant Classification System is a complex task that may require specialized tools and knowledge, making it advisable to seek professional help for a proper diagnosis and repair.

9. How much does it typically cost to repair the B1150 code in a Toyota Highlander?

- The cost of repairing the Occupant Classification System malfunction can vary depending on the specific issue, but it may range from a few hundred to over a thousand dollars including parts and labor.

10. Are there any recalls or technical service bulletins related to the B1150 code in a 2004 Toyota Highlander?

- Owners of affected vehicles should check with Toyota or authorized dealerships for any recalls or technical service bulletins related to the Occupant Classification System malfunction in the Toyota Highlander.

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