OBD-II fault code

B00F6: Third Row Center Inflatable Seatbelt Deployment Control (Subfault)

What it means

The restraint module monitors the deployment circuit for the third-row center inflatable seatbelt. It sets this code when the circuit’s measured electrical characteristics are outside the expected range.

At a glance

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

How it works

The restraint control module monitors the deployment circuit for the third-row center inflatable seatbelt, whose inflator is intended to widen the webbing during a crash. B00F6 is stored when the circuit’s electrical reading is outside the expected range, which may stop this center belt from deploying correctly.

Common causes

Most likely first.

  1. Open or short in inflatable belt deployment circuit
  2. Damaged wiring or connector
  3. Failed belt inflator
  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. Use a restraint-capable scan tool to verify B00F6, check for related codes, and retain any freeze-frame or event information.
  2. Inspect the third-row center inflatable belt and surrounding trim for visible damage, moisture, or signs of recent repair.
  3. With the restraint system disabled according to the maker’s instructions, examine the center belt deployment connector and wiring for looseness, corrosion, damaged pins, or chafing.
  4. Check the third-row center circuit for an open or short using the manufacturer’s approved test method; never probe the inflator directly with an ordinary meter.
  5. If the wiring is sound, use the specified diagnostic procedure to evaluate the center belt assembly and restraint control module.

Common fixes

  • Restore a loose connection or repair damaged third-row center belt wiring using the approved method.
  • Replace a damaged connector or harness section found in the deployment circuit.
  • Replace the third-row center inflatable belt assembly if testing confirms inflator failure.
  • Repair or replace the restraint control module only if tests establish a module fault.

Can I keep driving?

The third-row center inflatable belt may not widen in a crash, reducing the protection available at that seating position. Avoid using that seat until the fault is repaired, and follow the maker’s precautions when handling the inflator.

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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