B00F1: Passenger Inflatable Seatbelt Deployment Control (Subfault)

What it means

The restraint module monitors the deployment circuit for the passenger 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 passenger inflatable seatbelt’s deployment circuit, which powers an inflator that widens the belt webbing in a crash. B00F1 means the circuit’s electrical reading is outside the expected range, so this passenger belt may not deploy 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. Read B00F1 and any related restraint codes with a scan tool that can access the restraint module, and record available freeze-frame data.
2. Check the passenger inflatable belt and its retractor area for visible damage, moisture, or evidence of recent interior or collision repairs.
3. Follow the maker’s disable procedure before inspecting the passenger belt deployment connector and wiring for corrosion, loose terminals, pin damage, or chafing.
4. Use the manufacturer’s approved method to check the passenger inflatable belt circuit for an open or short; do not probe the inflator directly with a normal meter.
5. If the wiring is sound, carry out the specified tests to separate a belt inflator fault from a restraint control module fault.

Common fixes

• Reconnect a loose passenger belt connector or repair damaged wiring according to the approved procedure.
• Replace the damaged deployment connector or harness section identified by inspection or testing.
• Replace the passenger inflatable belt assembly if its inflator is confirmed faulty.
• Repair or replace the restraint control module only when its failure is established.

Can I keep driving?

The passenger inflatable belt may not deploy as intended in a crash, and the restraint warning can indicate reduced occupant protection. Avoid relying on that seating position until repaired, and keep clear of the inflator during service.