Operation CHARM: Car repair manuals for everyone.

Operation






OPERATION

A Heated Seat Switch/Module is used to control the heated second row seat system. The heated seat switch/modules receive battery current through a fused ignition switch output (run) circuit when the ignition switch is in the On position. The switch/module responds to heated seat switch/module button input and ignition switch status inputs by controlling the 12v output to the front seat heating elements through integral solid-state relays.

When either of the heated seat switch/module buttons are depressed the heating element for the selected seat is energized. Amber Light Emitting Diodes (LEDS) on the side of each switch/module indicate the level of heat in use: Two LEDs are illuminated for high, one for low, and none for off. Pressing the switch/module button once will select high-level heating. Pressing the button a second time will select low-level heating. Pressing the button a third time will shut the heating elements off.

The heated seat switch/module energizes an integral solid-state relay, which supplies battery current to the heating elements. When high-temperature heating is selected, the heaters provide a boosted heat level during the first four minutes of operation after heating is activated. The heat output then drops to the normal high-temperature level. If high-level heating is selected, the control system will automatically switch to the low level after thirty minutes of continuous operation. At that time, the number of illuminated LEDs changes from two to one, indicating the change. Operation on the low setting will continue for another thirty minutes and the system will then be automatically turned off.