2001 Toyota MR2 Spyder Owners Manual - Page 41

01MY MR2(U) L/O 0008 -Seat belt pretensioners SB13089 SB13102 SB13091 The driver and passenger's seat belt pretensioners are designed to be activated in response to a severe frontal impact. When the airbag sensor detects the shock of a severe frontal impact, the seat belts are quickly drawn back in by the retractors so that the belts snugly restrain the occupants. The seat belt pretensioners are activated even with no passenger in the seat. Collisions occurring at certain speeds and angles may cause the seat belt pretensioners and SRS airbags not to operate all together. This indicator comes on when the ignition key is turned to the "ON" position. It goes off after about 6 seconds. This means the seat belt pretensioners are operating properly. This warning light system monitors the airbag sensor assembly, front airbag sensors, seat belt pretensioner assemblies, inflators, warning light, interconnecting wiring and power sources. (For details, see "Service reminder indicators and warning buzzers" on page 70 in Section 1-5.) The seat belt pretensioner system mainly consists of the following components and their locations are shown in the illustration. 1. Front airbag sensors 2. Seat belt pretensioner assemblies 3. Airbag sensor assembly 4. SRS warning light The seat belt pretensioners are controlled by the airbag sensor assembly. The airbag sensor assembly consists of a safing sensor and airbag sensor. 34 2001 MR2 (OM17482U)