Heated Seat System: Operation

WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.

The heated seat module receives fused battery current through the low voltage cut-out relay in the Power Distribution Center (PDC). This relay is controlled by the Body Control Module (BCM) only when the ignition switch is in the run position. The heated seat switches receive battery current through a fused ignition switch output (run) circuit also when the ignition switch is in the Run position. The heated seat module shares a common ground circuit with each of the heated seat elements. The heated seat elements will only operate when the surface temperature of the seat cushion cover at the heated seat sensors is below the designed temperature set points of the system and the system voltage is above the cut-out level.

The heated seat module will automatically turn off the heated seat elements if it detects a short in the heated seat element circuit or a heated seat sensor value that is out of range. The heated seat system will remain ON anytime the ignition switch is turned to the ON position and the heated seat switch is at any of the #1 through #6 positions.

The heated seat module monitors inputs from the heated seat sensors and the heated seat switches. In response to these inputs the heated seat module uses its internal programming to control outputs to the heated seat elements in both front seats and to control the heated seat LED indicator lamps located in both of the heated seat switches.