B1513: Passenger seat belt buckle switch circuit open or shorted to battery voltage (Hyundai and Kia)

Passenger seat belt buckle switch fault, SRS light on

Severity: Inspect soon

The airbag light is on with this code, and Honda and Toyota owner manuals say a lit airbag light means the system should be checked promptly because the airbags may not work as designed. The belt buckle switch also feeds the restraint computer, so the passenger restraints are affected.

Safety-critical system: explanation only, no DIY steps. Source: how we rate severity

B1513 in short

On Hyundai and Kia, B1513 points to a fault in the passenger seat belt buckle switch circuit, open or shorted to power. The airbag light stays on and the restraint system may not work as designed. Have it inspected soon by a dealer or trained technician; do not work on airbag or buckle wiring yourself.

The restraint computer watches a small switch inside each front seat belt buckle to know whether the belt is fastened. It uses that input to decide how the airbags and belt pretensioners should respond.

On Hyundai and Kia, readouts for B1513 describe the passenger buckle switch circuit as open or shorted to battery voltage. A shop readout on a 2006 Santa Fe called it the passenger buckle switch shorted to V+, and a Kia dealer tool on a 2009 Rio listed it as buckle switch open short passenger side.

When the computer cannot trust that input it keeps the airbag light on. Owner reports show it can come and go with the buckle connection: one 2003 Sedona had the buckle replaced, then B1511 and B1513 came back together and the mechanic suspected wiring. Other makes can use B1513 for something else, so this page only covers Hyundai and Kia.

Pick your make

B1513 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

Cause 1: Failed passenger seat belt buckle switch
Supported by vehicle data
Why it ranks here
Owner and shop reports on Santa Fe and Sedona tie B1513 to the passenger buckle, and a Santa Fe shop readout names the buckle switch shorted to V+. One Sedona buckle replacement cured it only for about three weeks, so it is not the whole story.
What would change this
Rises if a technician measures the switch circuit out of range at the buckle with the seat connector checked. Falls if the circuit reads normal at the buckle or if B1511 sets at the same time.
Cause 2: Seat wiring or connector fault between the buckle and the restraint computer
Possible — needs testing
Why it ranks here
The Sedona owner reports B1511 and B1513 returning together after the passenger buckle was replaced, and the mechanic suspected wiring. Two buckle codes at once points toward something shared rather than two failed switches.
What would change this
Rises if both buckle codes set together or the code changes when the seat is moved. Falls if only the passenger code is present and stays after a verified good buckle.

What to test first

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

Step 1: Have the airbag computer read with a scan tool that can reach the SRS system, and note whether B1511 (driver buckle) or B1448 (passenger seat mat) is stored with B1513.
Low riskTool: scan tool with airbag (SRS) access
- IfB1513 is stored alone
  It meansThe passenger buckle switch or its own wiring is the likely area.
  Go to step 2
- IfB1511 is stored with B1513
  It meansA shared connector or wiring fault under the front seats becomes more likely than two failed switches.
  Points to: Seat wiring or connector fault between the buckle and the restraint computer
Step 2: Have a trained technician check the passenger buckle switch circuit and the seat connector against the service manual before any part is 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.
- IfThe switch reads open or shorted at the buckle
  It meansThe buckle switch is the likely fault.
  Points to: Failed passenger seat belt buckle switch
- IfThe switch checks out but the circuit does not
  It meansWiring or the connector is the likely fault.
  Points to: Seat wiring or connector fault between the buckle and the restraint computer

Symptoms

Airbag (SRS) warning light stays on
Light goes out and returns after a few drive cycles
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 seat belt buckle assembly:Owner reports show a replaced buckle did not always end the code on a Sedona. Confirm the circuit with a technician before ordering. 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

2005–2006 · Santa Fe
Supported by vehicle data
Santa Fe owners report B1513 with the passenger buckle switch shorted to power, including a 2006 with no crash at 140,000 miles. No bulletin was found in the local cache.

Kia

2003 · Sedona
Supported by vehicle data
A used 2003 Sedona set B1513, had the passenger buckle replaced, then returned with B1511 and B1513 together.
2009 · Rio
Supported by vehicle data
A 2009 Rio read by a Kia dealer showed B1448, B1513 and B1511 together at under 27,000 miles with no crash.

All Airbags and seat-belt restraints (SRS) codes

B1513 questions

Is B1513 the same on every make?

No. This page covers Hyundai and Kia, where readouts describe the passenger seat belt buckle switch circuit. Another reference site lists a different meaning for the same number on other makes, so check your own make before trusting a generic definition.

Sources and review

2023 Accord Owner's Manual: Airbag System Indicators — American Honda Motor Co.
Camry Owner's Manual (OM06291U) — Toyota
NHTSA complaint ODI 1383283: 2009 Kia Rio, Kia dealer scan-tool readout — NHTSA Office of Defects Investigation (consumer complaint)
NHTSA complaint ODI 1406212: 2006 Hyundai Santa Fe, passenger buckle switch — NHTSA Office of Defects Investigation (consumer complaint)
NHTSA complaint ODI 1095975: 2005 Hyundai Santa Fe, B1513 — NHTSA Office of Defects Investigation (consumer complaint)
NHTSA complaint ODI 1049204: 2003 Kia Sedona, passenger buckle — NHTSA Office of Defects Investigation (consumer complaint)
Hyundai Fault Code List DTC — YOUCANIC

Last reviewed: October 16, 2026
Written by: Saurabh K.
Editorial review: Pending
Technician review: Technician review pending

This page explains what a code usually means; it is not a substitute for a professional inspection. How we source and review · Report an error

Severity: Inspect soon

Pick your make

Most likely causes

Cause 1: Failed passenger seat belt buckle switch

Cause 2: Seat wiring or connector fault between the buckle and the restraint computer

What to test first

Step 1: Have the airbag computer read with a scan tool that can reach the SRS system, and note whether B1511 (driver buckle) or B1448 (passenger seat mat) is stored with B1513.

Step 2: Have a trained technician check the passenger buckle switch circuit and the seat connector against the service manual before any part is ordered.