AutoCodesHyundai – B1102 Hyundai

B1102 Hyundai Code - Airbag Battery Voltage Low

Quick Answer

Supplemental Restraints System Control Module (SRSCM) checks input voltage when "IG ON" to make air bag system work properly. Common causes include Faulty Supplemental Restraints System Control Module (SRSCM), Supplemental Restraints System Control Module (SRSCM) harness is open or shorted, Supplemental Restraints System Control Module (SRSCM) 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
B1102 Hyundai indicates Airbag Battery Voltage Low.
Common causes
Common causes include Faulty Supplemental Restraints System Control Module (SRSCM), Supplemental Restraints System Control Module (SRSCM) harness is open or shorted, Supplemental Restraints System Control Module (SRSCM) 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.
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Code Popularity 47,010
How popular is this code, among other codes? Medium
Table of contents Created and updated by William Orellana on Mar 22, 2022
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Code B1102 Hyundai Description

Supplemental Restraints System Control Module (SRSCM) checks input voltage when "IG ON" to make air bag system work properly. If input voltage is out of normal range, there can be malfunction in system operation. In this case, Check battery and charging system. The SRSCM sets DTC B1102 and turns warning light on if voltage below threshold value is detected for more than 4 sec. (If voltage within threshold value is detected When the SRSCM returns to normal condition. SRSCM regards DTC as being cleared and turns warning light off).
OBDII Code B1102 Hyundai - Airbag Battery Voltage Low - AutoCodes.com
B1102 Hyundai Code - Airbag Battery Voltage Low

What are the Possible Causes of the DTC B1102 Hyundai?

  • Faulty Supplemental Restraints System Control Module (SRSCM)
  • Supplemental Restraints System Control Module (SRSCM) harness is open or shorted
  • Supplemental Restraints System Control Module (SRSCM) circuit poor electrical connection
  • Fualty Charging system

How to Fix the DTC B1102 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 B1102 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 B1102 Hyundai code?

Need more information on how to fix the B1102 Hyundai code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1102 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 B1102 Hyundai Code

1. What does OBDII code B1102 for a Hyundai indicate?

The B1102 code specifically points to a problem with the airbag system related to low battery voltage.

2. What are the common symptoms of OBDII code B1102 in a Hyundai?

Common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the airbag system's functionality.

3. What can cause the OBDII code B1102 to trigger in a Hyundai?

The B1102 code is typically triggered by a low voltage level in the airbag system's battery, which can result from a failing battery or electrical issues.

4. How serious is the OBDII code B1102 in a Hyundai?

The B1102 code should be addressed promptly, as it indicates a potential problem with the airbag system's power source, which is crucial for the system to function effectively in the event of a collision.

5. What are the repair options for OBDII code B1102 in a Hyundai?

Repair options may include checking and replacing the airbag system's battery, addressing any underlying electrical issues, and resetting the fault code with a diagnostic tool.

6. Can I drive my Hyundai with the OBDII code B1102 present?

It is not recommended to drive the vehicle with the B1102 code active, as it indicates a potential problem with the airbag system that could compromise occupant safety in the event of an accident.

7. How can I prevent the OBDII code B1102 from appearing in my Hyundai?

Regular maintenance checks, including battery health inspections and electrical system evaluations, can help prevent issues like the B1102 code from occurring.

8. Is it safe to reset the OBDII code B1102 in a Hyundai without repairing the issue?

While you can reset the code temporarily, it is crucial to address the underlying problem causing the B1102 code to ensure the airbag system functions correctly and keeps you safe.

9. Can I diagnose and repair the OBDII code B1102 in my Hyundai by myself?

Diagnosing and repairing the B1102 code may require specialized knowledge and tools, so it is recommended to seek assistance from a qualified mechanic or dealership.

10. How much does it typically cost to fix the OBDII code B1102 in a Hyundai?

The cost of repairing the B1102 code can vary depending on the exact cause of the issue, but it may involve battery replacement, electrical system repairs, and diagnostic labor costs.

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