What it means
This code identifies a fault associated with the second-row center seatbelt pretensioner B deployment control. The failure type byte specifies the detected fault.
How it works
The second-row center seatbelt pretensioner B is an SRS component intended to tighten the center occupant's belt in a crash. The restraints control module monitors its deployment circuit and stores this code when a fault is detected; the accompanying subfault information specifies the fault type.
Common causes
Most likely first.
- Pretensioner circuit wiring or connector fault
- Open or short in the deployment circuit
- Faulty pretensioner
- Restraints control module fault
Symptoms
- Airbag or SRS warning light
- Pretensioner may not operate as intended in a crash
How to diagnose it
- Read the SRS subfault information and freeze-frame data to determine the reported circuit condition and when it occurred.
- Inspect the second-row center pretensioner, belt anchorage area, connector, and harness for damage, corrosion, looseness, or interference from trim.
- Check for related SRS codes that may indicate a shared power, ground, or module connection issue.
- Following the manufacturer's SRS safety procedure, test the center pretensioner B wiring for the open or short indicated by the subfault.
- If the wiring passes, test the center pretensioner B and restraints control module using the manufacturer's diagnostic steps.
Common fixes
- Reconnect or repair a loose or corroded second-row center pretensioner B connector.
- Repair damaged or pinched wiring in the center pretensioner B deployment circuit.
- Replace the center seatbelt pretensioner B assembly if testing confirms a component fault.
- Repair or replace the restraints control module only when diagnosis confirms it is defective.
Can I keep driving?
The vehicle may be driveable, but the second-row center belt pretensioner may not operate as intended in a crash. Have the SRS diagnosed promptly and do not probe or disturb deployment wiring outside 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.