Raider 2WD V6-3.7L (2008)
Seat Belt Buckle Switch: Description and Operation
SWITCH - SEAT BELT - DRIVER
DESCRIPTION
The seat belt switch is a small, normally open, single pole, single throw, leaf contact, momentary switch. Only one seat belt switch is installed in the
vehicle, and it is integral to the buckle of the driver side front seat belt buckle-half (3), located on the inboard side of the driver side front seat cushion
frame. The seat belt switch is connected to the vehicle electrical system through a two-wire pigtail wire (2) and connector on the seat belt buckle-half,
which is connected to a wire harness connector and take out of the seat wire harness routed beneath the driver side front seat cushion in the passenger
compartment.
The seat belt switch cannot be adjusted or repaired and, if ineffective or damaged, the entire driver side front seat belt buckle-half unit must be replaced.
OPERATION
The seat belt switch is designed to control a path to ground for the seat belt switch sense input of the ElectroMechanical Instrument Cluster (EMIC) (also
known as the Cab Compartment Node/CCN). When the driver side front seat belt tip-half is inserted into the seat belt buckle, the switch closes the path
to ground; and, when the driver side front seat belt tip-half is removed from the seat belt buckle, the switch opens the ground path. The switch is actuated
by the latch mechanism within the seat belt buckle.
The seat belt switch is connected in series between ground and the seat belt switch sense input of the instrument cluster. The seat belt switch receives
ground at all times through its pigtail wire connection to the seat wire harness from a take out of the body wire harness. An eyelet terminal connector on
the body wire harness ground take out is secured beneath a ground screw on the left cowl side inner panel, beneath the instrument panel. The seat belt
switch as well as the hard wired inputs and outputs of the switch may be diagnosed using conventional diagnostic tools and procedures. Refer to the
appropriate wiring information.
