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Engine-Codes – KIA – B1764 KIA

B1764 KIA Code - Body Sense MAT Defect

Quick Answer

The B1764 code for KIA indicates a Body Sense MAT Defect. Common causes include Damage to the body sense mat due to spills, tears, or wear and tear, Loose or corroded electrical connections to the body sense mat, Faulty wiring in the airbag system. 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
B1764 KIA indicates Body Sense MAT Defect.
Common causes
Common causes include Damage to the body sense mat due to spills, tears, or wear and tear, Loose or corroded electrical connections to the body sense mat, Faulty wiring in the airbag system.
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.
What is this?
Table of contents Created and updated by William Orellana on Aug 19, 2024
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Code B1764 KIA Description

The B1764 code for KIA indicates a Body Sense MAT Defect. This means that there is an issue with the body sense mat in the vehicle, which is a component of the airbag system. The body sense mat is responsible for detecting the weight of the occupants in the front passenger seat and determining whether to deploy the airbag in case of a collision. If this component is malfunctioning, it can affect the proper functioning of the airbag system, potentially putting occupants at risk in the event of an accident.

OBDII Code B1764 KIA - Body Sense MAT Defect
B1764 KIA Code - Body Sense MAT Defect

Common Causes of B1764 KIA

  1. Damage to the body sense mat due to spills, tears, or wear and tear
  2. Loose or corroded electrical connections to the body sense mat
  3. Faulty wiring in the airbag system
  4. Defective body sense mat sensor

Symptoms of B1764 KIA

  1. Airbag warning light illuminated on the dashboard
  2. Inconsistent airbag deployment
  3. Passenger airbag off indicator staying on even when a passenger is seated
  4. Intermittent or no response from the airbag system during a crash test
  5. Fault codes related to the airbag system stored in the vehicle's computer

How to Fix B1764 KIA

  1. Diagnose the issue by using a scan tool to retrieve the specific fault code
  2. Inspect the body sense mat for any physical damage or signs of wear
  3. Check the electrical connections and wiring related to the body sense mat for any issues
  4. Replace the body sense mat or sensor if necessary
  5. Clear the fault codes from the vehicle's computer and perform a test to ensure proper airbag system functionality

Cost to Fix B1764 KIA

The cost of repairing a Body Sense MAT Defect can vary depending on the extent of the issue and the specific components that need to be replaced. On average, the repair cost for this type of problem can range from $200 to $500, including parts and labor. However, it's important to note that labor rates at auto repair shops can vary, so it's recommended to check with local shops for a more accurate estimate. Additionally, the cost may be higher if the body sense mat sensor needs to be replaced, as this component can be more expensive.

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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.

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 B1764 KIA Code

1. What are the common symptoms of OBDII code B1764 (KIA) Body Sense MAT Defect?

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

2. What are the possible causes of OBDII code B1764 (KIA) Body Sense MAT Defect?

Possible causes include a faulty body sense mat, damaged wiring or connectors in the airbag system, or a malfunctioning airbag control module.

3. How can I diagnose the OBDII code B1764 (KIA) Body Sense MAT Defect?

Diagnosis typically involves using a professional OBDII scanner to retrieve the specific fault code, inspecting the body sense mat and related components, and conducting electrical tests to pinpoint the issue.

4. Can I drive my vehicle with the OBDII code B1764 (KIA) Body Sense MAT Defect?

It is not recommended to drive the vehicle with this fault code present, as it indicates a potential problem with the airbag system, which is crucial for passenger safety in the event of a collision.

5. How can I repair OBDII code B1764 (KIA) Body Sense MAT Defect?

Repair options may include replacing the faulty body sense mat, repairing damaged wiring or connectors, or resetting the airbag system after addressing the underlying issue.

6. Is it safe to reset the OBDII code B1764 (KIA) Body Sense MAT Defect without repairing the issue?

It is not advisable to simply reset the code without addressing the root cause, as the airbag system may still be compromised, putting occupants at risk in case of an accident.

7. Can a DIY enthusiast fix the OBDII code B1764 (KIA) Body Sense MAT Defect?

While some basic troubleshooting steps can be performed by DIY enthusiasts, dealing with the airbag system and related components often requires specialized tools and expertise best left to professional technicians.

8. How much does it cost to repair OBDII code B1764 (KIA) Body Sense MAT Defect?

The cost of repair can vary depending on the specific cause of the issue, the extent of the damage, and labor rates in your area. It is advisable to consult a qualified mechanic for an accurate estimate.

9. How long does it take to repair OBDII code B1764 (KIA) Body Sense MAT Defect?

The repair time can vary based on the complexity of the issue and the availability of parts. Some repairs may be completed in a few hours, while others could take longer if extensive troubleshooting is required.

10. Can OBDII code B1764 (KIA) Body Sense MAT Defect affect the vehicle's performance?

While this code may not directly impact the vehicle's performance, it can compromise the safety systems, particularly the airbag deployment in case of an accident, making it essential to address the issue promptly.

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