Switch, Seat Belt: Description
Both the driver and passenger front seat belt switches for this vehicle are actually Hall Effect-type sensors. These sensors consist of a fixed-position, Hall Effect Integrated Circuit (IC) chip and a small permanent magnet that are integral to the front seat belt buckles (1). The front seat belt buckles are located on a molded plastic scabbard and secured by a bolt to a bracket near the back of the upper, inboard seat adjuster track. The front seat belt switches are connected to the vehicle electrical system through a two-lead pigtail wire and connector (2) on the front seat belt buckle, which is connected to a wire harness connector and take out of the seat wire harness. A 1 kilohm diagnostic resistor is connected in parallel with the IC where the two pigtail wire leads connect to the IC terminals.
Vehicles manufactured for certain export markets also have seat belt switches for each of the rear seating positions. The rear seat belt switches are small, normally open, single pole, single throw, mechanical leaf contact, momentary switches. These switches are integral to the buckle of each rear seat belt buckle. The rear seat belt switches are connected to the vehicle electrical system through a two-wire pigtail wire and connector on the seat belt buckle, which is connected to a wire harness connector and take out of the seat wire harness routed beneath the rear seat cushions in the passenger compartment.
The front and rear seat belt switches cannot be adjusted or repaired and, if ineffective or damaged, the entire front or rear seat belt buckle must be replaced.