AutoCodes – KIA – B1764 KIA

B1764 KIA Code - Body Sense MAT Defect

Quick Answer

In order to make normal activation of the airbag system, Supplemental Restraints System Control Module (SRSCM) detects a Diagnostic Trouble Code (DTC) for the Passenger side Body Detection System. Common causes include Faulty Passenger Side Body Sense Sensor Mat, Faulty Passenger Side Body Sense Sensor ECU, Passenger Side Body Sense Sensor ECU harness is open or shorted. 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 Faulty Passenger Side Body Sense Sensor Mat, Faulty Passenger Side Body Sense Sensor ECU, Passenger Side Body Sense Sensor ECU harness is open or shorted.
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 15,338

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 Jun 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1764 KIA Description

In order to make normal activation of the airbag system, Supplemental Restraints System Control Module (SRSCM) detects a Diagnostic Trouble Code (DTC) for the Passenger side Body Detection System. If the seat is occupied, Body Sense Sensor detects how passenger weighs and send a signal to the Airbag Control Unit (ACU) via Controller Area Network (CAN). The ACU recognizes the signal as 3 (three) different classifications; that is, 0 (Empty), 1 (Small), 2 (Large). With these signal, ACU determines whether it needs to deploy PAB (Passenger Airbag) or not.

OBDII Code B1764 KIA - Body Sense MAT Defect - AutoCodes.com — B1764 KIA Code - Body Sense MAT Defect

What does this mean?

What are the Possible Causes of the DTC B1764 KIA?

Faulty Passenger Side Body Sense Sensor Mat
Faulty Passenger Side Body Sense Sensor ECU
Passenger Side Body Sense Sensor ECU harness is open or shorted
Passenger Side Body Sense Sensor ECU circuit poor electrical connection

How to Fix the DTC B1764 KIA?

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 B1764 KIA 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 B1764 KIA code?

Need more information on how to fix the B1764 KIA code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1764 KIA 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 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.