B1495 Belt tension sensor defect in the passenger occupant detection system (Hyundai and Kia)

Belt tension sensor (BTS) defect, airbag light on

B1495 in short

On Hyundai and Kia, B1495 means the passenger belt tension sensor, part of the occupant detection system, has reported a defect. The airbag light stays on and the passenger airbag may not work as designed. Have a dealer or trained technician inspect it soon; do not touch the seat or belt wiring yourself.

The passenger occupant detection system decides whether the front passenger airbag may fire. Besides the seat mat, Hyundai and Kia also use a sensor on the passenger belt that measures belt tension, called the belt tension sensor or BTS.

B1495 is the code for a defect in that sensor. Dealers on a 2007 Santa Fe called the part the belt tension sensor unit, and on a 2009 Sportage the readout was B1495 belt tension sensor next to B1489, the seat mat code. When the sensor or its wiring misbehaves the airbag light stays on.

The same number is used for something unrelated on other makes. A Mazda bulletin in the local cache stores B1495:87 as a LIN communication error after a trailer hitch install on some CX-9 models, so this page only covers Hyundai and Kia.

Pick your make

B1495 is a manufacturer-specific code: its meaning depends on who built the car.

Other makes: meaning not verified. Check with a scan tool that reads manufacturer definitions.

Most likely causes

  1. Belt tension sensor or its wiring connection on the passenger seat

    Supported by vehicle data
    Why it ranks here
    Santa Fe, Azera and Sportage owners all report B1495 with the airbag light on, and a dealer on the Azera log found a poor connection at the seat belt tensioner. Repeated recurrence across several models points at the sensor or its connector rather than a one-off.
    What would change this
    Rises if a technician finds damage or a poor connection at the passenger belt tension sensor connector. Falls if the sensor circuit tests normal.

  2. Passenger occupant detection system module or seat mat fault

    Possible — needs testing
    Why it ranks here
    B1495 often appears next to B1489 (occupant detection ECU defect) or the seat mat code on Azera and Sportage, so the wider system may be at fault and not only the belt sensor. Replacing the whole seat bottom on one Azera did not clear it.
    What would change this
    Rises if B1489 or the seat mat code is stored with B1495. Falls if B1495 is the only code.

What to test first

Start at step 1. Each result tells you what it means and where to go next.

  1. Have the airbag computer read with a scan tool that can reach the SRS system and note whether B1489 (occupant detection ECU) or the seat mat code is stored with B1495.

    Low riskTool: scan tool with airbag (SRS) access

  2. Have a trained technician check the passenger belt tension sensor, its connector and the occupant detection system against the Hyundai or Kia service manual before parts are ordered.

    Best left to a shopTool: Hyundai or Kia diagnostic tool and service information

    Warning:Never probe, unplug or test airbag, pretensioner or seat belt buckle connectors yourself. Airbags and pretensioners can deploy and injure you even with the ignition off, and an incorrect repair can leave the restraint dead in a crash. Leave this to a dealer or trained technician.

Symptoms

  • Airbag (SRS) warning light stays on
  • Passenger airbag off indicator or airbag light returns after being cleared
  • Passenger airbag may not respond as designed in a crash Gets more serious: stop and have it checked.

How to fix

This is a safety-critical system, so we explain the code but don't give repair steps. Have it inspected by a qualified technician.

Parts and cost context

  • Passenger belt tension sensor and occupant detection system:A whole seat bottom was replaced on one Azera without ending the airbag light, so confirm which part is at fault before buying. Labor varies; get a quote.

Labor varies by vehicle and shop; get a quote before you approve a repair.

Compare used part prices on PartPriceGuide

On your vehicle

Hyundai

  • 2007 · Santa Fe

    Supported by vehicle data

    A 2007 Santa Fe dealer found B1495 and called the part the belt tension sensor unit shared with other Hyundai models. The owner cites a recall number; that recall was not opened here.

  • 2006 · Azera

    Supported by vehicle data

    2006 Azera owners report B1495 (alone or with B1489), a poor connection at the seat belt tensioner, and a seat bottom replaced without a lasting fix.

Kia

  • 2006–2009 · Sportage

    Supported by vehicle data

    Sportage dealer readouts list B1495 as belt tension sensor, one with B1489 and one with an ABS code, with the airbag light on.

Mazda

  • 2020–2022 · CX-9

    Supported by vehicle data

    On Mazda the same number is a LIN communication error after a trailer hitch install, not a belt sensor.

  • SA-030-22Status unverified

    DTC B1495:87 LIN communication error after trailer hitch install

    2020–2022cx-9 · NHTSA 10213144

    Says some CX-9 vehicles store B1495:87 and cannot clear it after an accessory trailer hitch is fitted, which may come from the liftgate foot sensor deactivation procedure not being completed. A different meaning from Hyundai and Kia, kept here to show the number is not shared.

    We couldn't confirm whether this bulletin is still current, so it doesn't count as confirmation.

  • B1513Passenger seat belt buckle switch circuit open or shorted to battery voltage (Hyundai and Kia)

    Same system Possible — needs testing

    Hyundai and Kia list B1513 (passenger buckle switch) as a separate passenger restraint input fault with the same airbag light.

All Airbags and seat-belt restraints (SRS) codes

B1495 questions

Does B1495 mean the same thing on a Mazda?

No. A Mazda bulletin lists B1495:87 as a LIN communication error on some CX-9 models after a trailer hitch install. The belt tension sensor meaning on this page is for Hyundai and Kia only.

Sources and review

  1. 2023 Accord Owner's Manual: Airbag System Indicators — American Honda Motor Co.
  2. Camry Owner's Manual (OM06291U) — Toyota
  3. NHTSA complaint ODI 1349948: 2007 Hyundai Santa Fe, B1495 — NHTSA Office of Defects Investigation (consumer complaint)
  4. NHTSA complaint ODI 931332: 2006 Hyundai Azera, service history — NHTSA Office of Defects Investigation (consumer complaint)
  5. NHTSA complaint ODI 1171122: 2009 Kia Sportage, B1495 belt tension sensor — NHTSA Office of Defects Investigation (consumer complaint)
  6. NHTSA complaint ODI 1461441: 2006 Hyundai Azera, B1489 and B1495 — NHTSA Office of Defects Investigation (consumer complaint)
  7. Hyundai Fault Code List DTC — YOUCANIC
  8. NHTSA complaint ODI 1475611: 2006 Kia Sportage, B1495 PODS and BTS — NHTSA Office of Defects Investigation (consumer complaint)
  9. Mazda SA-030-22: DTC B1495:87 LIN communication error after trailer hitch install (2020-2022 CX-9) — Mazda (via NHTSA bulletin summary)
Last reviewed
Written by
Saurabh K.
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