AutoCodes – Hyundai – B1748 Hyundai

B1748 Hyundai Code - Pressure-Side Impact Sensor Front Passenger Communication Error

Quick Answer

Pressure-Side Impact Sensor and Rear Side Impact Sensor are installed in the left and the right side of the front door and in the lower of C-pillar respectively. Common causes include Faulty Pressure-Side Impact Sensor, Pressure-Side Impact Sensor harness is open or shorted, Pressure-Side Impact 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: B1748 Hyundai indicates Pressure-Side Impact Sensor Front Passenger Communication Error.
Common causes: Common causes include Faulty Pressure-Side Impact Sensor, Pressure-Side Impact Sensor harness is open or shorted, Pressure-Side Impact 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 13,174

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 Jun 26, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code B1748 Hyundai Description

Pressure-Side Impact Sensor and Rear Side Impact Sensor are installed in the left and the right side of the front door and in the lower of C-pillar respectively. The Pressure-Side Impact Sensor senses an impact based on an acceleration at crashing. Unlike the conventional acceleration sensor, the Pressure Sensor senses an air pressure by a distorted door at crashing and measures an impact. The System Control Module (SCM) detects the impact signals of the Pressure-Side Impact Sensor and Rear Side Impact Sensor and compares with signals of the safe sensor inside. If the signals of all sensors are judged as a collision, the side-airbag and the curtain-airbag would be unfolded.

OBDII Code B1748 Hyundai - Pressure-Side Impact Sensor Front Passenger Communication Error - AutoCodes.com — B1748 Hyundai Code - Pressure-Side Impact Sensor Front Passenger Communication Error

What does this mean?

What are the Possible Causes of the DTC B1748 Hyundai?

Faulty Pressure-Side Impact Sensor
Pressure-Side Impact Sensor harness is open or shorted
Pressure-Side Impact Sensor circuit poor electrical connection
Faulty Supplemental Restraints System Control Module (SRSCM)

How to Fix the DTC B1748 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 B1748 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 B1748 Hyundai code?

Need more information on how to fix the B1748 Hyundai code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the B1748 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 B1748 Hyundai Code

1. What are the common symptoms of OBDII code B1748 Hyundai?

The common symptoms of OBDII code B1748 Hyundai include the airbag warning light illuminated on the dashboard, and potential issues with the front passenger side impact sensor.

2. What causes the Pressure-Side Impact Sensor Front Passenger Communication Error (B1748) in a Hyundai vehicle?

The B1748 code in Hyundai vehicles is typically caused by a malfunction or communication error within the pressure-side impact sensor located on the front passenger side.

3. How can I diagnose the Pressure-Side Impact Sensor Front Passenger Communication Error (B1748) in my Hyundai?

Diagnosing the B1748 code involves using an OBDII scanner to retrieve the specific fault code, inspecting the impact sensor and its wiring for any visible damage, and testing the sensor's communication with the vehicle's airbag system.

4. Is it safe to drive my Hyundai with the B1748 code present?

It is not recommended to drive your Hyundai with the B1748 code active, as it indicates a potential issue with the front passenger side impact sensor, which may affect the proper deployment of the airbag in case of an accident.

5. Can I repair the Pressure-Side Impact Sensor Front Passenger Communication Error (B1748) in my Hyundai myself?

Repairing the B1748 code in a Hyundai may require specialized knowledge and tools. It is recommended to consult a professional mechanic or Hyundai dealership to properly diagnose and repair the issue.

6. How much does it typically cost to fix the B1748 code in a Hyundai?

The cost of fixing the B1748 code in a Hyundai can vary depending on the exact cause of the issue, the required repairs or parts replacement, and labor costs. It is advisable to get a quote from a trusted mechanic or dealership.

7. Are there any safety concerns associated with the B1748 code in a Hyundai?

Yes, the B1748 code indicates a potential safety issue with the front passenger side impact sensor, which may affect the proper functioning of the airbag system in case of a collision. It is crucial to address this issue promptly.

8. Can the B1748 code be triggered by a loose connection or wiring issue?

Yes, a loose connection or damaged wiring related to the pressure-side impact sensor on the front passenger side can trigger the B1748 code in a Hyundai.

9. Will resetting the OBDII system clear the B1748 code in my Hyundai?

Resetting the OBDII system may temporarily clear the B1748 code, but if the underlying issue with the front passenger side impact sensor persists, the code is likely to reappear. It is crucial to address the root cause of the problem.

10. How important is it to address the B1748 code promptly in a Hyundai vehicle?

Addressing the B1748 code promptly in a Hyundai is crucial to ensure the proper functioning of the airbag system and overall safety of the vehicle occupants. Ignoring this code may compromise the effectiveness of the airbags in case of an accident.