OBD-II fault code

B00BA: Driver Seat Occupant Position Sensor "D" (Subfault)

What it means

The restraint control module monitors driver seat occupant position sensor D as part of the occupant position system. It sets this code when it detects a fault in that sensor or its circuit; the title does not specify the failure mode.

At a glance

  • Usually lights the airbag (SRS) or body-system warning light

How it works

Driver seat occupant position sensor D provides a position input to the restraint control module, which uses occupant-position information in managing airbag protection. B00BA indicates that the module has detected a fault involving sensor D or its circuit, without identifying the exact failure mode.

Common causes

Most likely first.

  1. Faulty driver seat occupant position sensor D
  2. Damaged wiring or connector at the sensor
  3. Obstruction or damage affecting sensor readings
  4. Fault in the restraint control module

Symptoms

  • Warning light or symbol related to the affected system
  • Comfort or safety function impaired

How to diagnose it

  1. Read restraint-system codes and freeze-frame data, then check the scan tool's live status for driver seat sensor D and whether the fault is current.
  2. Check the driver seat for objects or physical changes that could block or disturb sensor D.
  3. Inspect sensor D's wiring and connector for damage, looseness, corrosion, or signs of a previous repair, following the manufacturer's restraint-system precautions.
  4. Monitor sensor D data while the driver seat is moved normally if permitted, looking for an absent, erratic, or implausible reading.
  5. Measure sensor D and its circuit using the manufacturer's test procedure and specification; only suspect the restraint control module after those checks pass.

Common fixes

  • Remove an obstruction affecting sensor D.
  • Repair or secure damaged wiring or the sensor D connector.
  • Replace driver seat occupant position sensor D if it fails the specified checks.
  • Repair or replace the restraint control module after confirming sensor D and its circuit are serviceable.

Can I keep driving?

Have the restraint warning diagnosed promptly because the system may lack reliable driver-position information in a crash. Do not disturb seat or airbag wiring while driving or without the proper precautions.

A code shows where the control module detected a fault, not always which part failed. Check the causes in order and confirm with a test before replacing parts. Have several codes? Check them together

This is a generic code: it means the same on every make. The car’s maker may add more detail in its own service information.

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