Checking component and wiring

Fig 1: Identifying Ignition OFF

Courtesy of VOLVO CARS OF NORTH AMERICA.

• Switch off the ignition. Wait 10 seconds.
• Unplug the 10-pin connector from the occupant weight sensor (OWS).
• Unplug the 3-pin connector from the pressure sensor.
  CAUTION:

  Avoid touching the terminal pins in the occupant weight sensor (OWS). There is a risk of static discharge which could damage the occupant weight sensor (OWS).

  Check the connectors between the pressure sensor and the occupant weight sensor (OWS) for damaged pins and connections.

  Remedy as necessary.

  Check the leads between pressure sensor and the occupant weight sensor (OWS) for short-circuiting to voltage/ground and open circuit.

  Remedy as necessary.

  Other information 

  • Signal description occupant weight sensor (OWS):Signal specification

Has the fault been remedied? 

• YES 

  Refer to Verification 

• NO 

  Refer to Replacing pressure sensor and occupant weight sensor (OWS)