Airbags

B00B6 — Driver Seat Recline Position Sensor Fault (SRS)

Severity: medium Safe to drive

What B00B6 means

The SRS control module uses the driver seat backrest angle to decide how the airbag and seatbelt pretensioner should deploy for the occupant's position. B00B6 is stored when the recline sensor signal is missing, out of range or implausible. The module logs the fault and turns on the SRS warning light.

Symptoms

  • Airbag/SRS warning light on or flashing
  • B00B6 stored in the SRS module
  • Seat power adjustment or memory may act up
  • Fault may come and go with seat movement or bumps

Possible causes

  1. Failed driver seat recline position sensor
  2. Open or shorted wiring under the driver seat
  3. Poor connection or corrosion at the sensor connector
  4. Wiring pinched or damaged by seat movement, cleaning or seat cover installation
  5. Rarely, a faulty SRS control module

How to diagnose

  1. Scan the SRS module with a capable tool and check whether the code is current or history, plus freeze frame data
  2. Inspect the harness and connectors under the driver seat for chafing, kinks, moisture and corrosion
  3. Check that wiring is not pinched when moving the seat fore/aft and reclining the backrest
  4. Following the manufacturer's battery disconnect wait time, confirm the sensor connector is seated and the pins are clean
  5. Test the sensor circuit for continuity, shorts to ground and correct supply voltage
  6. Watch the sensor reading on the scan tool while changing recline angle; it should change smoothly
  7. If the wiring is good, test or replace the sensor, clear the code and confirm it does not return

Common fixes

  • Clean and reseat the connector
  • Repair or replace the damaged wiring section
  • Replace the recline position sensor (often part of the seat mechanism)
  • Clear the code and perform any required SRS calibration after repair
  • Replace the SRS module only if confirmed faulty

Questions and answers

Can I drive with code B00B6?

Yes, the car will still drive normally. But your driver-side restraint protection may not work correctly in a crash, so get it checked soon.

Why does a seat recline sensor turn on the SRS light?

The SRS module uses seat position to choose how restraints deploy. If it can't trust that signal, it flags a fault and lights the warning.

Can I just clear B00B6?

You can, but if the cause remains the code and light will return. Find and fix the connector, wiring or sensor problem 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.