The BPT(Seat Belt Pretensioner) is located at both side of center pillar.
The BPT tightens a seat belt before air bag deploys to protect passenger from bumping against crush pad, steering wheel and front window.
In the BPT, there are an ignition circuit and cylinder for rewinding belt.
The cylinder has a piston that can rewind seat belt in it.
The gas chamber generates expansive force of gases to push piston in cylinder.
Never measure resistance of BPT directly, Current of measuring device may cause unexpected BPT depoy.
SRSCM (Supplemental Restraints System Control Module) | AWL (ACU Warning Lamp) |
FIS (Front Impact Sensor) | DAB (Driver Airbag) |
DSIS (Side Impact Sensor) | PAB (Passenger Airbag) |
PSIS (Side Impact Sensor) | DBS (Driver Buckle Switch) |
DSIS (Driver Side Impact Sensor) | PBS (Passenger Buckle Switch) |
PSIS (Passenger Side Impact Sensor) | DBPT (Driver Belt Pretensioner) |
DSAB (Driver Side Airbag) | PBPT (Passenger Belt Pretensioner) |
PSAB (Passenger Side Airbag) | DAPT (Driver Anchor Pretensioner) |
DCAB (Driver Curtain Airbag) | PAPT (Passenger Anchor Pretensioner) |
PCAB (Passenger Curtain Airbag) |
