What it means
This code identifies a fault associated with the third row left seat belt pretensioner 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 third-row left seat-belt pretensioner tightens that seating position's belt during a qualifying crash. The restraint control module monitors its deployment-control circuit, and B0076 flags a fault associated with that circuit; the accompanying subfault information specifies the detected condition.
Common causes
Most likely first.
- Pretensioner wiring or connector fault
- Open or shorted deployment circuit
- Faulty third row left pretensioner
- Restraint control module fault
Symptoms
- Airbag warning light on
- Third row left pretensioner may not activate in a crash
How to diagnose it
- Read the restraint module's subfault details and freeze-frame data to identify the condition detected in the third-row left pretensioner circuit.
- Inspect the third-row left belt and retractor for damage, obstruction, or abnormal belt movement.
- Trace the accessible harness to the left pretensioner and check connectors and wiring for looseness, corrosion, damaged pins, or chafing near folding or moving seat sections.
- Test the deployment circuit for an open or short using the manufacturer's procedure and specification.
- If the circuit passes, check the third-row left pretensioner and then the restraint control module according to the manufacturer's diagnostic sequence.
Common fixes
- Reconnect or repair damaged third-row left pretensioner wiring using the approved restraint-system procedure.
- Repair a confirmed open or short in the third-row left deployment circuit.
- Replace the third-row left pretensioner if testing confirms a unit fault.
- Repair or replace the restraint control module only after verifying the circuit and pretensioner.
Can I keep driving?
The vehicle may be driveable, but the third-row left pretensioner may not tighten its belt in a crash. Avoid using that seating position until the restraint fault is repaired.
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.