Airbags

B00BB — Driver Seat Occupant Position Sensor E Fault (Subfault)

Severity: medium Drive with care, to a shop

What B00BB means

B00BB means the airbag (SRS) control module detected a problem in the circuit or signal of driver seat occupant position sensor E. This sensor is part of the occupant classification system and helps the module decide how airbags and pretensioners should deploy. With bad data, the module can't trust the driver's position and turns on the SRS light.

Symptoms

  • Airbag (SRS) warning light is on
  • Scan tool shows an occupant classification fault
  • Driver airbag deployment logic may be reduced or incorrect
  • Code may appear after seat work or moving the seat

Possible causes

  1. Faulty driver seat occupant position sensor E
  2. Open, short or poor connection in the sensor wiring
  3. Corroded or partly unplugged connector under the seat
  4. Wiring damaged by seat movement or interior cleaning
  5. Faulty airbag or occupant classification module (less common)

How to diagnose

  1. Scan all SRS codes with a tool that supports airbags and note the freeze frame data
  2. Disconnect the battery and wait the time the manufacturer specifies to avoid accidental deployment
  3. Inspect the harness and connectors under the driver seat for chafing, corrosion or loose fit
  4. Look for signs of previous repairs, seat damage or objects under the seat
  5. Test circuit continuity, power and ground for the sensor per the factory wiring diagram
  6. Compare live sensor data while moving the seat
  7. Clear the code and see if it returns

Common fixes

  • Repair wiring or replace damaged connectors for sensor E
  • Replace the driver seat occupant position sensor E
  • Replace the SRS or occupant classification module if proven faulty
  • Clean the terminals and secure the connector properly

Questions and answers

Can I drive with B00BB?

Yes, engine and braking are not affected. However, the driver's airbag may not act correctly in a crash, so get it checked soon.

Why is the SRS light on after seat work?

Often a connector under the seat is not fully seated or a wire is damaged. Check the connections and rescan.

Can I just clear B00BB?

Clearing only helps briefly. If the cause remains, the module will set the code again and the light will return.

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.