B1382 Passenger side airbag circuit resistance too high (Suzuki, Hyundai, Kia)

Passenger side airbag resistance too high

B1382 in short

On Suzuki, Hyundai and Kia, B1382 means the airbag computer measured too much resistance in the passenger side (seat-mounted) airbag circuit. The airbag light comes on and that side airbag may not deploy. Bulletins and dealers often point to the connector under the passenger seat. Have it checked soon; never probe airbag wiring yourself.

The airbag computer measures the resistance of every airbag firing circuit each time the car starts. B1382 means the reading for the passenger side airbag, usually the one in the seat, is higher than it should be, so the airbag light comes on.

Suzuki's bulletin for the 2005–2006 Forenza and Reno pairs B1382 (passenger side) with B1378 (driver side). Kia's bulletins cover B1378/B1382 on the 2001–2005 Optima and, under warranty extension WTY025, on the 2017–2018 Sedona, where the front seat side airbag connector resistance is higher than normal. Hyundai owners report dealers resecuring the connector under the passenger seat.

High resistance usually comes from a poor connection, but only a technician with the service procedure should test or repair airbag circuits.

Pick your make

B1382 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. Poor connection at the side airbag connector under the passenger seat

    Supported by vehicle data
    Why it ranks here
    Kia's WTY025 bulletin names higher-than-normal side airbag connector resistance, and Hyundai dealer readouts quoted in complaints describe resecuring or repairing the connector under the passenger seat.
    What would change this
    Rises if the light came on after the seat was moved or something was stowed under it. Falls if the connector checks good.

  2. Other wiring or terminal fault in the side airbag circuit

    Possible — needs testing
    Why it ranks here
    GM service information lists corrosion and loose terminals as causes of high resistance in seat-mounted airbag circuits; this is general, not a finding for these makes.
    What would change this
    Rises if the seat connector checks good. Falls if a connector repair clears the 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 codes read with a scan tool that can talk to the airbag module, and note every code stored.

    Low riskTool: scan tool with airbag (SRS) access

    • IfB1382 is stored, with or without B1378

      It meansThe passenger side airbag circuit reads high resistance.

      Go to step 2

    • IfOther airbag codes are stored as well

      It meansA technician should work through them in the order the service manual gives.

      Go to step 3

  2. Give your VIN to the dealer and ask whether a side airbag bulletin or warranty extension (such as Kia WTY025) covers the car.

    Low risk

    • IfCovered

      It meansThe dealer repairs it under the bulletin.

      Go to step 3

    • IfNot covered

      It meansThe circuit still needs a diagnosis.

      Go to step 3

  3. Have a dealer or trained technician run the airbag system diagnosis from the service manual.

    Best left to a shopTool: maker's diagnostic tool

    Warning:Never probe airbag connectors or wiring with a test light or meter, and never unplug them yourself. Nissan warns that airbags and pretensioners can still deploy after the ignition is off, and that test equipment must not be used on airbag circuits unless the service manual calls for it. Leave this to a dealer or trained technician.

Symptoms

  • Airbag warning light stays on after the engine starts

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 side airbag connector:Kia extended coverage on some Sedonas (WTY025); ask before paying. Airbag circuit work belongs with a dealer or trained technician. Labour 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

Suzuki

  • TS 05 01158Status unverified

    Airbag light on, B1378 and/or B1382

    2005–2006forenza, reno · issued · NHTSA 10024195

    Driver side (B1378) and/or passenger side (B1382) airbag resistance too high.

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

Kia

  • 2017–2018 · Sedona

    Supported by vehicle data

    Kia's WTY025 warranty extension covers the front seat side airbag connector. Whether it is still current is not verified.

  • 2001–2005 · Optima

    Supported by vehicle data

    Kia's bulletin covers the SRS lamp with B1378 and B1382. Whether it is still current is not verified.

  • ELE259Status unverified

    Side airbag warning light on with B1378/B1382 (WTY025)

    2017–2018sedona · issued · NHTSA 10217680

    Warranty extension to diagnose and repair the side airbag light; front seat side airbag connector resistance higher than normal.

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

  • 035Status unverified

    SRS warning lamp for B1378 and B1382

    2001–2005optima · issued · NHTSA 10022959

    SRS warning lamp illumination with B1378 and B1382.

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

Hyundai

  • 2001–2005 · Sonata

    Supported by vehicle data

    Owners report dealers reading B1382 as passenger side airbag resistance high and repairing the connector under the passenger seat.

  • B1378Driver side airbag circuit resistance too high (Suzuki, Kia)

    Shares causes Supported by vehicle data

    B1378 is the driver side version; Suzuki and Kia bulletins cover the two codes together.

All Airbags and seat-belt restraints (SRS) codes

B1382 questions

Can moving the passenger seat cause B1382?

It can disturb the connector under the seat, which bulletins and dealers often blame for B1382. Don't unplug or reseat it yourself; airbag connectors are dealer work.

Sources and review

  1. 2023 Accord Owner's Manual: Airbag System Indicators — American Honda Motor Co.
  2. Camry Owner's Manual (OM06291U) — Toyota
  3. Suzuki TS 05 01158: airbag light on, DTC B1378 (driver side airbag resistance too high) and/or B1382 (passenger side airbag resistance too high) — American Suzuki Motor Corp. ,
  4. Kia TSB ELE259: side airbag warning light on with DTC(s) B1378/B1382 (WTY025 warranty extension) — Kia America ,
  5. NHTSA complaint ODI 10260997 (2004 Hyundai Santa Fe) — NHTSA Office of Defects Investigation
  6. NHTSA complaint ODI 10455799 (2005 Hyundai Sonata) — NHTSA Office of Defects Investigation
  7. DTC B0014, B0021, B0031 or B0038 (2011 Saab 9-4X workshop manual, airbag/SRS) — General Motors / Saab Automobile
  8. Kia TSB 035: SRS warning lamp illumination for B1378 and B1382 — Kia Motors America ,
  9. Nissan Supplemental Restraint Systems: damage analysis and repair using Diagnostic Trouble Codes (TechNews, Summer 2016) — Nissan North America ,
  10. NHTSA complaint ODI 10659109 (2006 Suzuki Reno) — NHTSA Office of Defects Investigation
  11. NHTSA complaint ODI 10183282 (2001 Hyundai Sonata) — NHTSA Office of Defects Investigation
  12. NHTSA complaint ODI 10294554 (2003 Hyundai Sonata) — NHTSA Office of Defects Investigation
Last reviewed
Written by
Saurabh K.
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