Engine-Codes - Hyundai - B1518 Hyundai

B1518 Hyundai Code - Seat Belt Buckle Switch Passenger Instability

- Code Popularity: 1,291 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
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What are the Possible Causes of the DTC B1518 Hyundai?

NOTE: The causes shown may not be a complete list of all potential problems, and it is possible that there may be other causes.
  • Faulty Seat Belt Buckle Switch Passenger
  • Seat Belt Buckle Switch Passenger harness is open or shorted
  • Seat Belt Buckle Switch Passenger circuit poor electrical connection
  • Faulty Supplemental Restraints System Control Module (SRSCM)
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How to Fix the DTC B1518 Hyundai?

Check 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 pins.

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What is the Cost to Diagnose the Code?

Labor: 1.0

The cost to diagnose the B1518 Hyundai code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.

What are Code Possible Symptoms?

  • Air Bag Warning Light ON

What Does the B1518 Hyundai Code Mean?

Seat-belt Buckle Switch (SBBS) is located in driver and passenger side seat. The Supplemental Restraints System Control Module (SRSCM) checks if the seatbelt is buckled by the signal of SBBS. SRSCM controls air bag module and Seat Belt Pretensioner (BPT) differently in accordance with vehicle speed at the moment of collision and signal from SBBS.

B1518 Hyundai Code - Seat Belt Buckle Switch Passenger Instability

Need more Information on the Code?

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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.