AutoCodes – Hyundai – B1477 Hyundai

B1477 Hyundai Code - Passenger Curtain Airbag Resistance Too High

Quick Answer

The Curtain Airbag (CAB) Squib circuit consists of the Supplemental Restraints System Control Module (SRSCM) and two Curtain Airbag. Common causes include Faulty Passenger Curtain Airbag (CAB) Squib, Passenger Curtain Airbag (CAB) Squib harness is open or shorted, Passenger Curtain Airbag (CAB) Squib 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: B1477 Hyundai indicates Passenger Curtain Airbag Resistance Too High.
Common causes: Common causes include Faulty Passenger Curtain Airbag (CAB) Squib, Passenger Curtain Airbag (CAB) Squib harness is open or shorted, Passenger Curtain Airbag (CAB) Squib 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 6,021

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 Apr 12, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1477 Hyundai Description

The Curtain Airbag (CAB) Squib circuit consists of the Supplemental Restraints System Control Module (SRSCM) and two Curtain Airbag. It causes the Supplemental Restraints System (SRS) to deploy when the SRS deployment conditions are satisfied. The OBDII Diagnostic Trouble Code (DTC) is recorded when the CAB resistance too high or low is detected in the CAB squib circuit.

OBDII Code B1477 Hyundai - Passenger Curtain Airbag Resistance Too High - AutoCodes.com — B1477 Hyundai Code - Passenger Curtain Airbag Resistance Too High

What does this mean?

What are the Possible Causes of the DTC B1477 Hyundai?

Faulty Passenger Curtain Airbag (CAB) Squib
Passenger Curtain Airbag (CAB) Squib harness is open or shorted
Passenger Curtain Airbag (CAB) Squib circuit poor electrical connection
Faulty Supplemental Restraints System Control Module (SRSCM)

How to Fix the DTC B1477 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 B1477 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 B1477 Hyundai code?

Need more information on how to fix the B1477 Hyundai code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1477 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 B1477 Hyundai Code

1. What are the common symptoms of OBDII code B1477 Hyundai (Passenger Curtain Airbag Resistance Too High)?

- The common symptoms include the airbag warning light illuminating on the dashboard and a potential message indicating an issue with the passenger curtain airbag system.

2. What are the possible causes of OBDII code B1477 in a Hyundai vehicle?

- The code B1477 typically indicates a high resistance in the passenger curtain airbag system, which can be caused by faulty wiring, a damaged airbag module, or a problem with the airbag itself.

3. How can I diagnose the issue related to OBDII code B1477 in my Hyundai?

- To diagnose the issue, it is recommended to use a diagnostic scan tool to retrieve the specific fault codes and perform a thorough inspection of the passenger curtain airbag system components for any visible damage or loose connections.

4. Is it safe to drive my Hyundai with OBDII code B1477 (Passenger Curtain Airbag Resistance Too High)?

- It is not recommended to drive the vehicle with an active airbag fault code as it may compromise the effectiveness of the airbag system in case of an accident. It is advised to address the issue promptly.

5. How can I reset the OBDII code B1477 in my Hyundai after repairing the issue?

- Once the underlying issue causing the code B1477 is repaired, the code can be reset using a diagnostic scan tool capable of clearing fault codes or by disconnecting the vehicle's battery for a few minutes.

6. Can I repair OBDII code B1477 in my Hyundai myself, or do I need professional assistance?

- The complexity of repairing OBDII code B1477 may vary based on the underlying cause. While some simple fixes like checking and reconnecting wiring may be done by DIY enthusiasts, more intricate repairs involving airbag modules should be handled by a professional.

7. Are there any recalls or service bulletins related to OBDII code B1477 in Hyundai vehicles?

- It is advisable to check with a Hyundai dealership or visit the manufacturer's website to see if there are any recalls or service bulletins related to OBDII code B1477 for your specific vehicle model.

8. How can I prevent OBDII code B1477 from occurring in my Hyundai in the future?

- Regularly inspecting and maintaining the airbag system components, including wiring and connections, can help prevent issues like high resistance in the passenger curtain airbag system that triggers code B1477.

9. Will fixing OBDII code B1477 affect the overall safety of my Hyundai's airbag system?

- Yes, addressing OBDII code B1477 promptly and correctly is crucial for ensuring the proper functioning and safety of the passenger curtain airbag system in your Hyundai.

10. How long does it usually take to repair OBDII code B1477 in a Hyundai vehicle?

- The repair time for OBDII code B1477 can vary depending on the exact cause of the issue and the complexity of the repair needed. It is recommended to consult a professional technician for a more accurate estimate.