Volvo 2006 C70 - Manual (Page 18)

The SRS warning light (see page 14) will come on and stay on
The message PASS. AIRBAG OFF SERVICE URGENT will be displayed in the information display.
WARNING!
If a fault in the system is detected and indicated as explained on the preceding page, be aware that the passenger's
side front airbag will not deploy in the event of a collision. In this case, the SRS system and Occupant Weight
Sensor should be inspected by a trained and qualified Volvo service technician as soon as possible.
WARNING!
Never try to open, remove, or repair any components in the OWS system. This could result in system malfunction.
Maintenance or repairs should only be carried out by an a trained and qualified Volvo service technician.
The front passenger's seat should not be modified in any way. This could reduce pressure on the seat cushion,
which might interfere with the OWS system's function.
pg. 19 Safety
Occupant Weight Sensor - disabling the passenger's side front airbag
a. Volvo recommends that children always be properly restrained in appropriate child restraints in the rear seats. In rare
situations when the seat belt is not latched, some child restraint systems may not be detected by the OWS because there
is very little weight on the vehicle seat cushion. In these cases the airbag may be turned off but the "passenger airbag
off" indicator would not be lit. DO NOT assume the front passenger airbag is turned off unless the indicator is lit.
Make sure the child restraint is properly belted and that the indicator is lit, or move the child restraint to the rear seat.