B1495: Belt Tension Sensor Failed

Hardware fault

What B1495 means

Belt tension sensors sit at the anchor end of the passenger seat belt. Their job is to tell the system when the belt is cinched down hard, which happens when a child seat is strapped in tight rather than when a person is simply buckled. The occupant detection system uses that information so the passenger airbag behaves correctly for what is in the seat.

Because the sensor is bolted at the belt anchor near the floor, it takes abuse from feet, cargo, moisture, and every seat removal the car has been through. When the sensor reports a failure or returns values the system rejects, B1495 goes into memory and the passenger airbag decision loses one of its inputs.

Common causes

• Internal failure of the belt tension sensor at the anchor
• Corrosion at the sensor connector from moisture in the floor
• Physical damage from cargo, feet, or an anchor bolt overtightened during reinstallation
• A harness pinched or cut where it routes near the seat track
• A sensor disturbed or never properly reconnected after seat or belt work

Crash data or hardware fault?

What you have here is a component failure rather than a live loop measurement, which is why Hyundai files it under hardware. The other thing the module can hold is crash data, written permanently after a deployment and impossible to erase with a scan tool. A failed sensor and stored crash data are separate problems with separate fixes.

Does our reset clear it?

Module restoration does not repair a belt tension sensor. Our mail-in service clears locked crash data and returns a control module to its factory state after a deployment. With B1495 the work is at the passenger belt anchor. If the car has both problems, do the sensor repair first and then send the module in.

Which makes throw it

Hyundai reports B1495 for a failed belt tension sensor. It sits alongside Hyundai's other occupant detection codes, and the numbering keeps it separate from the control unit and calibration faults in that same system.

What to do next

Inspect the sensor and its connector at the belt anchor first, since corrosion and crushed wiring in that low spot cause more of these than internal failures do. Confirm the harness is intact along its route under the seat. When the sensor is genuinely bad it is replaced with the belt hardware it belongs to, and we stock genuine OEM Hyundai seat belt assemblies. Related codes: B1490, B1496, B105E.