What it means
This code identifies a fault associated with the second-row right seatbelt pretensioner B deployment control. The failure type byte specifies the detected fault.
How it works
The second-row right seatbelt pretensioner B is part of the SRS and is intended to tighten the belt at that seating position during a crash. The restraints control module monitors its deployment circuit and records this code when it detects a fault; the accompanying subfault information identifies the failure 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 details and freeze-frame data first to identify the reported circuit condition and its timing.
- Inspect the second-row right pretensioner area, connector, and harness for corrosion, damage, looseness, or pinching.
- Look for related SRS codes that may point to a shared module power, ground, or connector fault.
- Make the SRS safe according to the manufacturer's procedure, then test the second-row right pretensioner B circuit for the indicated open or short.
- If the wiring is sound, test the pretensioner B assembly and restraints control module according to the manufacturer's procedure.
Common fixes
- Secure or repair the second-row right pretensioner B connector if loose or corroded.
- Repair an open, shorted, or damaged section of the second-row right deployment wiring.
- Replace the second-row right pretensioner B assembly if it fails circuit or component checks.
- Repair or replace the restraints control module if testing confirms it is at fault.
Can I keep driving?
The vehicle may be driveable, but the second-row right belt pretensioner may not work as intended in a crash. Ensure occupants use their belts and arrange prompt SRS diagnosis; do not handle deployment wiring without 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.