What it means
This code identifies a fault associated with the first row center seat belt load limiter deployment control. The restraint control module sets it when it detects a problem in that deployment control; the exact fault is specified by accompanying subfault information.
How it works
The restraint control module monitors the deployment control circuit for the first-row center seat belt load limiter, which is intended to manage belt forces in a crash. B0081 identifies a fault associated with that circuit; the accompanying subfault information specifies the detected condition, and the load limiter may not operate as intended.
Common causes
Most likely first.
- Load limiter wiring or connector fault
- Open or shorted deployment circuit
- Faulty load limiter
- Restraint control module fault
Symptoms
- Airbag warning light on
- Load limiter may not operate in a crash
How to diagnose it
- Use an SRS-capable scan tool to read B0081's accompanying subfault information, since the base code alone does not specify the circuit condition.
- Follow the manufacturer's SRS disabling and waiting procedure, then inspect the first-row center seat belt load limiter connector and accessible wiring for damage or poor connection.
- Test the deployment circuit for the open or short indicated by the subfault, using the manufacturer's procedure and specification.
- Check the load limiter itself only after its wiring and connector have been verified, following the vehicle's prescribed SRS test method.
- If the load limiter circuit and component pass, investigate a restraint control module fault.
Common fixes
- Correct a loose or damaged first-row center load limiter connector using the prescribed SRS procedure.
- Repair wiring if testing confirms an open or short in the deployment circuit.
- Replace the load limiter if its deployment control fails the manufacturer's checks.
- Repair or replace the restraint control module only if circuit testing confirms an internal fault.
Can I keep driving?
The vehicle may be drivable, but the first-row center seat belt load limiter may not operate as intended in a crash. Arrange prompt SRS repair and do not probe or handle its deployment wiring unless following the manufacturer's disabling 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.