Engine-Codes - Hyundai - B1400 HYUNDAI

B1400 HYUNDAI Code - SIS Front-Driver Defect

- Code Popularity: 2,512 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the B1400 HYUNDAI Code?

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

|How to Fix the B1400 HYUNDAI Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|What is the cost to diagnose the B1400 HYUNDAI code?

Labor: 1.0

The cost to diagnose the B1400 HYUNDAI code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|What are B1400 HYUNDAI code possible symptoms?

  • Air Bag Warning Light ON

|What Does the B1400 HYUNDAI Code Mean?

The Side Impact Sensor (SIS) is located on both side of the center pillar detects a broad collision. When SIS delivers collision signal to Supplemental Restraints System Control Module (SRSCM), SRSCM checks if safing sensor located in SRSCM detects a collision. and if both SIS and the safing sensor detects collision simultaneously, SRSCM operates side air bag.

SIS Front-Driver Defect

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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.