Principles of Operation

PRINCIPLES OF OPERATION

Power Seat (Driver Only)
The 6-way power seat feature moves the seat in 6 possible directions. The base of the seat can be moved forward or rearward and the front or back of the base cushion can be moved up or down independently. The power seat feature operates independent of the position of the key.

The power seat motors are hard-wired to the seat control switch. The seat control switch circuits are normally closed. Each circuit is switched to voltage or ground (depending on which direction is commanded) when an adjustment position is selected.

Heated Seats (Front Only)
The driver and front passenger heated seats share a common battery and ignition feed. A shared ground source supplies the heated seat control switches and the heated seat modules. When the heated seat control switch is pressed with the key in the RUN or START position, a momentary ground signal is sent to the heated seat module. The heated seat module then supplies voltage to the heating grid. The cushion grid and seat backrest grid are wired in series and voltage is supplied by the same output. The heated seat module supplies voltage to an indicator circuit in the heated seat switch to indicate an ON state. The heated seat module remains on until the heated seat control switch is pressed and a momentary ground signal is received by the heated seat module, or until 10 minutes elapse. If the voltage source is removed from the module, the heated seat module enters an OFF state and does not return to the ON state until the switch is once again pressed with the key in the RUN or START position. The heated seat module is designed to heat the seat to 37.5°C (99.5°F), and maintain the temperature until time-out occurs, or until it is switched off. This temperature is maintained by the heated seat module monitoring the temperature sensor, located in the seat cushion grid, and adjusting the current flow to the heating grids.