Airbags

B00F0 — Driver Inflatable Seat Belt Deployment Control Circuit Fault

Severity: high Drive with care, to a shop

What B00F0 means

The SRS control module continuously tests the driver's inflatable seat belt deployment circuit for opens, shorts and abnormal resistance. B00F0 is set when that test fails or the module receives invalid data. While the fault is active, the belt may not deploy in a crash.

Symptoms

  • Airbag/SRS warning light on
  • Seat belt indicator fault or flashing
  • Restraint system fault message in the cluster
  • Code returns after being cleared

Possible causes

  1. Open circuit, corrosion or poor contact in the driver belt deployment wiring
  2. Damaged or loose connector under the seat or in the body pillar
  3. Faulty inflatable seat belt assembly (inflator/squib)
  4. Failed SRS module or body control module
  5. Wiring damage after a crash, seat removal or other repair

How to diagnose

  1. Scan all modules with an SRS-capable tool and check freeze frame to confirm the code is current
  2. Inspect the driver belt connectors and harness, especially near the seat and flex points
  3. Ask about recent seat, belt or interior work and confirm connectors are fully latched
  4. Check battery voltage and ground at the SRS module
  5. Measure circuit resistance per the manufacturer's spec; never apply voltage to the inflator or probe it without service procedure
  6. Look for related codes and available SRS software updates
  7. Clear codes after repair and confirm the light stays off

Common fixes

  • Repair or replace damaged wiring and connectors
  • Replace the driver inflatable seat belt assembly
  • Update software or replace the SRS/body control module
  • Disconnect the battery first; this work is best left to a qualified shop

Questions and answers

What does B00F0 mean?

It is a fault in the driver inflatable seat belt deployment circuit. The SRS module cannot confirm the circuit or the belt is working properly.

Can I drive with B00F0?

Yes, it drives normally, but the restraint may not deploy in a crash. Don't put off diagnosis.

Can I just clear the code?

Clearing it only hides the problem briefly. If the fault is real, it will return and the system stays in doubt.

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.