General Information

Component Location





General Description

Seat Belt Pretensioner (hereinafter referred to BPT) is located at both side of center pillar.
BPT tightens seat belt before air bag deploys to protect passenger from bumping against crush pad, steering wheel and front window.
In BPT, there are a ignition circuit and cylinder for rewinding belt.
Cylinder has piston that can rewind seat belt in it.
Gas chamber generates expansive force of gases to push piston in cylinder.

CAUTION:
Never measure resistance of BPT directly, Current of measuring device may cause unexpected BPT depoy.

DTC Description

The SRSCM sets DTC B1363 if there is a short to ground in DBPT harness.
*In this case, SRSCM checks if there's any fault in circuit by sending current for a while.

DTC Detecting Condition





Specification





Diagnostic Circuit Diagram