Checking the Function Of the Seatbelt

Check

Fig 1: Identifying Piston Positions

Courtesy of VOLVO CARS OF NORTH AMERICA.

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

Check the position of the piston 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

Piston position B:

The seat belt tensioner has not deployed.

No action is required

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

Check seat belt function

Fig 2: Pulling And Jerking Belt Repeatedly To Check Function

Courtesy of VOLVO CARS OF NORTH AMERICA.

Check that the seat belt (inertia) reel inhibits seat belt movement correctly. Pull and jerk the belt repeatedly to check the function.

WARNING: The ignition must never, under any circumstances, be switched on when the connector for the SRS ignition cable is being removed or installed.

Ignition in position II. Connect the battery negative lead.

Fig 3: Identifying SRS Indicator Lamp

Courtesy of VOLVO CARS OF NORTH AMERICA.

NOTE: Check that the SRS indicator lamp is not defective by turning the key to position II. The SRS indicator lamp must light and go out after approximately 7 seconds.

Check that the SRS indicator lamp in the combined instrument panel is not constantly lit. Fault-trace the SRS system if the lamp is constantly lit.