Seat Belt Tensioner, Checking

WARNING: This page does not describe the selected car, but rather 8 other vehicles, including the 2006 Volvo S80, 2005 Volvo S80, 2004 Volvo S80, 2003 Volvo S80, and 2002 Volvo S80. However, it is still accessible from the selected car via links, so may be relevant.

The illustrations in this service information are used for different model years and / or models. Some variation may occur. However, the essential information in the illustrations is always correct.

Checking the seat belt tensioner

CAUTION:

When replacing deployed seat belt tensioners, seat belt buckles and end mountings must always be replaced.

Seat belt tensioners can be checked in two different ways:

Check for any diagnostic trouble codes (DTCs) using VIDA
Physical check as follows.

NOTE:

Third row seat belt tensioners cannot be checked physically, only via VIDA.

Fig 1: Identifying Piston Positions

Courtesy of VOLVO CARS OF NORTH AMERICA.

Insert a wire in the pipe on the seat belt tensioner as illustrated.

Check the piston position in the seat belt tensioner.

Piston position A:

The seat belt tensioner has deployed. Replace both the seat belt (inertia) reels and the seat belt tensioners. See Seat belts, replacing .

Piston position B:

The seat belt tensioner has not deployed. No corrective action is required.

NOTE:

If any airbag has deployed, all seat belts and tensioners must be replaced.