Airbags

B00BA — Driver Seat Occupant Position Sensor D Fault

Severity: medium Safe to drive

What B00BA means

B00BA means the airbag (SRS) control module detected a fault with occupant position sensor D in the driver seat. This sensor data helps the system decide how restraints should deploy in a crash. When the signal is missing or out of range, the module sets the code and usually turns on the airbag warning light.

Symptoms

  • AIRBAG/SRS warning light on
  • B00BA stored in the SRS module
  • Occupant detection may not work correctly
  • Problem may appear after moving or adjusting the seat
  • Other seat sensor circuit codes may be present

Possible causes

  1. Faulty driver seat occupant position sensor D
  2. Open or shorted sensor wiring
  3. Poor connection or corrosion at the connector under the seat or at the SRS module
  4. Harness damage from seat movement or earlier interior work
  5. Faulty SRS control module (uncommon)

How to diagnose

  1. Scan all modules with an SRS-capable tool, record the codes, and see if B00BA returns after clearing
  2. Inspect the harness and connectors under the driver seat for chafing, pinching or moisture
  3. Check that the sensor connector is seated and the pins are clean and tight
  4. Make sure nothing under the seat is interfering with the sensor or wiring
  5. Test the circuit for opens, shorts to ground and correct supply using the factory wiring diagram
  6. Test the sensor against specifications or scan tool readings
  7. If wiring and sensor are good, evaluate the SRS module

Common fixes

  • Replace occupant position sensor D
  • Repair wiring or replace the damaged harness or connector
  • Clean and secure connector terminals
  • Replace or reprogram the SRS module once confirmed faulty

Questions and answers

Can I drive with B00BA?

The car will drive normally, but the driver's airbag may not deploy correctly in a crash. Have it checked soon.

How do I clear B00BA?

An SRS-capable scan tool can erase it, but it will return until the cause is fixed. Start by checking the connector and wiring under the seat.

Why did B00BA appear after interior cleaning or repair?

The connector under the seat is often unplugged or a wire gets damaged during that work. Check that it is connected and the harness is intact.

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.