Airbags

B0082 — Passenger Restraint Sensor / Seatbelt Circuit Fault

Severity: high Drive with care, to a shop

What B0082 means

B0082 means the SRS control module detected a fault in a passenger-side circuit, such as the occupant classification sensor (OCS) or the seatbelt load limiter and pretensioner. The module continuously monitors these parts and uses their signals to decide how the airbag and belt should deploy. When it sees a problem, it stores the code and turns on the SRS light. The exact definition varies by manufacturer, so check the service data for your vehicle.

Symptoms

  • SRS or airbag warning light on
  • Seatbelt warning light on or behaving oddly
  • Passenger airbag status light shows the wrong state
  • Passenger airbag disabled
  • Seatbelt reminder not working properly

Possible causes

  1. Open, shorted or damaged wiring to the sensor or load limiter
  2. Corroded or loose connectors under the passenger seat
  3. Failed occupant classification (OCS) sensor pad
  4. Faulty seatbelt load limiter or pretensioner
  5. Liquid damage to the seat and connectors
  6. Faulty SRS control module (less likely)

How to diagnose

  1. Scan for codes with an SRS-capable tool, save the freeze frame data, then clear and see if B0082 returns.
  2. Inspect the wiring and connectors under the passenger seat for damage, moisture, corrosion and chafing.
  3. Make sure nothing is on the seat and that seat covers or heaters are factory-style and not interfering with the sensor.
  4. Check OCS live data with the seat empty and loaded.
  5. Test circuit continuity and shorts to ground or power per the factory wiring diagram, with the battery disconnected.
  6. Test the belt component (load limiter, pretensioner) using the manufacturer's procedure, never by applying power manually.
  7. If wiring and parts check out, test the SRS module and its power supply.

Common fixes

  • Repair wiring or replace damaged connectors
  • Replace the OCS sensor or seat assembly and calibrate it
  • Replace the seatbelt load limiter or pretensioner
  • Replace or reprogram the SRS module if it is confirmed faulty

Questions and answers

What does B0082 mean?

The SRS module found a fault in the passenger-side sensor or seatbelt circuit. Passenger protection may be limited or turned off as a result.

Can I drive with B0082?

You can drive, but passenger protection in a crash is not assured. Get it diagnosed soon and avoid seating anyone up front until it is repaired.

Can I just clear the code?

You can, but if the cause remains the code will return and the system will keep working with limits. Find and fix the fault first.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.