AutoCodes – Hyundai – B1766 Hyundai

B1766 Hyundai Code - Body Sense Wrong ID

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 Passenger Side Body Sense Wrong ID, 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: B1766 Hyundai indicates Body Sense Wrong ID.
Common causes: Common causes include Passenger Side Body Sense Wrong ID, 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 849

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 B1766 Hyundai 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 B1766 Hyundai - Body Sense Wrong ID - AutoCodes.com — B1766 Hyundai Code - Body Sense Wrong ID

What does this mean?

What are the Possible Causes of the DTC B1766 Hyundai?

Passenger Side Body Sense Wrong ID
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
Faulty Supplemental Restraints System Control Module (SRSCM)

How to Fix the DTC B1766 Hyundai?

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 B1766 Hyundai 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 B1766 Hyundai code?

Need more information on how to fix the B1766 Hyundai code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1766 Hyundai 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 B1766 Hyundai Code

1. What are the common symptoms of OBDII code B1766 in a Hyundai related to "Body Sense Wrong ID"?

The common symptoms include malfunctioning airbag system, illuminated airbag warning light on the dashboard, and possible loss of communication with the body control module.

2. What are the possible causes of OBDII code B1766 in a Hyundai?

The code B1766 "Body Sense Wrong ID" in a Hyundai can be caused by a faulty airbag sensor, damaged wiring harness, loose connections, or a malfunctioning body control module.

3. How can I diagnose the OBDII code B1766 in my Hyundai?

Diagnosing OBDII code B1766 usually involves using a diagnostic scanner to retrieve the fault codes, inspecting the airbag sensor and related wiring for damage, and checking the connections to ensure they are secure.

4. How can I repair OBDII code B1766 "Body Sense Wrong ID" in my Hyundai?

Repairing OBDII code B1766 may involve replacing the faulty airbag sensor, repairing damaged wiring, securing loose connections, or resetting the body control module.

5. Can I drive my Hyundai with OBDII code B1766 present?

It is not recommended to drive your Hyundai with OBDII code B1766 present, as it indicates a potential issue with the airbag system, which is a critical safety component of the vehicle.

6. How much does it typically cost to repair OBDII code B1766 in a Hyundai?

The cost of repairing OBDII code B1766 in a Hyundai can vary depending on the exact cause of the issue, but it may range from $100 to $500 or more, including parts and labor.

7. Can I reset the OBDII code B1766 in my Hyundai without fixing the underlying issue?

While you can clear the fault code temporarily, it is not recommended to reset OBDII code B1766 without addressing the underlying problem, as it may lead to safety issues and the code will likely reappear.

8. Will OBDII code B1766 "Body Sense Wrong ID" cause my Hyundai to fail an emissions test?

While OBDII code B1766 is related to the airbag system and not emissions, it may still cause your Hyundai to fail an emissions test if left unresolved, as a malfunctioning airbag system can be a safety concern.

9. How long does it take to repair OBDII code B1766 in a Hyundai?

The repair time for OBDII code B1766 can vary depending on the exact cause of the issue and the complexity of the repair, but it may take anywhere from 1 to 4 hours or more at a repair shop.

10. Can I fix OBDII code B1766 in my Hyundai by myself, or do I need to take it to a professional mechanic?

While some DIY enthusiasts may be able to diagnose and repair OBDII code B1766 themselves, it is recommended to consult a professional mechanic for proper diagnosis and repair to ensure the issue is addressed correctly.