AutoCodes – Hyundai – B1449 Hyundai

B1449 Hyundai Code - Passenger Occupant Classification System Communication Error

Quick Answer

The Passenger Occupant Classification System consists of the Supplemental Restraints System Control Module (SRSCM) and the Occupant Classification (OC) Module. Common causes include Faulty Passenger Occupant Classification Sensor, Passenger Occupant Classification Sensor harness is open or shorted, Passenger Occupant Classification Sensor 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: B1449 Hyundai indicates Passenger Occupant Classification System Communication Error.
Common causes: Common causes include Faulty Passenger Occupant Classification Sensor, Passenger Occupant Classification Sensor harness is open or shorted, Passenger Occupant Classification Sensor 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 3,990

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Apr 11, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1449 Hyundai Description

The Passenger Occupant Classification System consists of the Supplemental Restraints System Control Module (SRSCM) and the Occupant Classification (OC) Module. The Diagnostic Trouble Code (DTC) is recorded when a defect or communication error of the OC module is detected in the OC module circuit.

OBDII Code B1449 Hyundai - Passenger Occupant Classification System Communication Error - AutoCodes.com — B1449 Hyundai Code - Passenger Occupant Classification System Communication Error

What does this mean?

What are the Possible Causes of the DTC B1449 Hyundai?

Faulty Passenger Occupant Classification Sensor
Passenger Occupant Classification Sensor harness is open or shorted
Passenger Occupant Classification Sensor circuit poor electrical connection
Faulty Occupant Classification (OC) Module
Faulty Supplemental Restraints System Control Module (SRSCM)

How to Fix the DTC B1449 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 B1449 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 B1449 Hyundai code?

Need more information on how to fix the B1449 Hyundai code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1449 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 B1449 Hyundai Code

1. What are the common symptoms of OBDII code B1449 Hyundai related to the Passenger Occupant Classification System Communication Error?

- Common symptoms include the airbag warning light illuminating on the dashboard and potential issues with the passenger airbag deployment system.

2. What are the possible causes of OBDII code B1449 Hyundai in relation to the Passenger Occupant Classification System Communication Error?

- The code may be triggered by a fault in the passenger occupant classification system module, a communication error between modules, or damaged wiring/connectors.

3. How can I diagnose the OBDII code B1449 Hyundai for the Passenger Occupant Classification System Communication Error?

- Diagnosis usually involves using a diagnostic scan tool to retrieve the specific fault code, inspecting the wiring/connectors for damage, and testing the components of the passenger occupant classification system.

4. Can I still drive my Hyundai with OBDII code B1449 related to the Passenger Occupant Classification System Communication Error?

- It is not recommended to drive the vehicle with an unresolved airbag system issue as it may compromise passenger safety in case of a collision. Get the issue diagnosed and repaired promptly.

5. How can I repair OBDII code B1449 Hyundai for the Passenger Occupant Classification System Communication Error?

- Repair methods may include repairing or replacing damaged wiring/connectors, recalibrating the passenger occupant classification system module, or replacing faulty components based on the diagnostic findings.

6. Is it necessary to reset the OBDII code B1449 Hyundai after repairing the Passenger Occupant Classification System Communication Error?

- Yes, it is recommended to reset the fault code using a diagnostic scan tool after resolving the underlying issue. This will clear the airbag warning light and ensure the system is functioning properly.

7. Are there any safety precautions to consider when working on the Passenger Occupant Classification System related to OBDII code B1449 Hyundai?

- Ensure the vehicle's battery is disconnected before working on any airbag-related components to prevent accidental deployment. Follow proper safety procedures outlined in the vehicle's service manual.

8. How much does it typically cost to repair OBDII code B1449 Hyundai for the Passenger Occupant Classification System Communication Error?

- Repair costs can vary depending on the exact cause of the issue, parts needed, and labor rates. It's advisable to consult with a professional mechanic for an accurate estimate.

9. Can a DIY enthusiast repair OBDII code B1449 Hyundai for the Passenger Occupant Classification System Communication Error?

- While some basic checks like inspecting wiring/connectors can be done by DIY enthusiasts, diagnosing and repairing complex airbag system issues is best left to trained professionals due to safety concerns.

10. Will OBDII code B1449 Hyundai for the Passenger Occupant Classification System Communication Error cause the airbags to deploy unexpectedly?

- The code itself does not trigger unexpected airbag deployment. However, it indicates a potential issue with the passenger airbag system, which may affect its proper deployment in the event of a collision.