What it means
The restraint module monitors the deployment circuit for the third-row left 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 left inflatable seatbelt, which uses an inflator to widen the belt webbing in a crash. It sets B00F5 when the circuit’s electrical characteristics fall outside the expected range, so this belt may not deploy correctly.
Common causes
Most likely first.
- Open or short in inflatable belt deployment circuit
- Damaged wiring or connector
- Failed belt inflator
- 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
- Read B00F5 and any companion restraint codes with a scan tool that accesses the restraint module, and record freeze-frame data before clearing.
- Inspect the third-row left inflatable belt, retractor area, and nearby trim for damage, moisture, or recent repair work.
- After following the manufacturer’s restraint-system disable instructions, check the left belt connector and harness for corrosion, loose terminals, pin damage, or pinching.
- Test the third-row left deployment circuit for an open or short with the specified equipment and method; do not test the inflator using a standard multimeter.
- If the circuit passes, use the maker’s diagnostic procedure to identify a failed belt inflator or restraint control module.
Common fixes
- Reconnect or repair damaged third-row left deployment wiring using the approved procedure.
- Replace a damaged connector or harness section found during inspection or testing.
- Replace the third-row left inflatable belt assembly if its inflator is confirmed faulty.
- Repair or replace the restraint control module if diagnosis verifies module failure.
Can I keep driving?
The third-row left inflatable belt may not deploy as designed in a crash, reducing protection for that passenger. Avoid using the seat until repaired, and have inflator-related work performed under the manufacturer’s safety procedure.
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.