Seat Belt Reminder Lamp: Description and Operation

Conditions To Activate The Seat Belt Light
When the passive restraint module determines a seat belt warning is required, the fasten seat belt indicator output (pin 16), supplies a ground to the Fasten Belt Indicator (FBI). This action activates the seat belt light.

When the ignition key is in the ON position (pin 25 high), and both of the B-pillar limit switches are not activated (pin 18 or 21 floating/not grounded), the FBI output is activated (pin 16 grounded).

The FBI is also activated when the ignition key is in the ON position (pin 25 high), and either of the shoulder belts are spooled in (pin 14 or 15 floating/not grounded).

NOTE: The warning chime module interfaces with the warning light.