FRONT POWER SEAT CONTROL SYSTEM (w/ Memory) > SYSTEM DESCRIPTION

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FRONT POWER SEAT CONTROL SYSTEM DESCRIPTION

The driver seat is equipped with slide, reclining, lifter, front vertical, and lumbar support adjustment functions.
The memory call function uses the key ID code of the key to memorize and recall the appropriate driving position for each individual who possesses a master key or sub key.

FUNCTION OF MAIN COMPONENT

Component		Function
Position control ECU and switch assembly		Based on the switch operation, seat adjuster signals are input to the position control ECU and switch assembly to adjust the seat accordingly.
Separate type front seat cushion spring assembly	Slide motor	Receives a signal from the position control ECU and switch assembly, and slides the seat forward and rearward.
	Front vertical motor	Receives a signal from the position control ECU and switch assembly, and raises and lowers the front of the seat cushion.
	Lifter motor	Receives a signal from the position control ECU and switch assembly, and raises and lowers the seat cushion.
	Position sensor	Built into each motor and sends position data to the position control ECU and switch assembly so that it can detect seat positions at all times.
Separate type front seat back spring assembly	Reclining motor	Receives a signal from the position control ECU and switch assembly, and tilts the seatback forward and rearward.
	Lumbar support adjuster assembly	Receives a signal from the lumbar support adjustment switch (power seat switch assembly) and operates the motor to adjust lumbar support.
	Position sensor	Built into the reclining motor and sends position data to the position control ECU and switch assembly so that the ECU can detect seat positions at all times.
Seat memory switch		If the seat memory SET switch is being pressed when one of the M1, M2 or M3 seat memory switches is pressed, or if one of the M1, M2 or M3 switches is pressed within 3 seconds of pressing the SET switch, the outer mirror control ECU assembly (for driver side) sends the signals so that the seat position can be stored. Then, when a seat memory switch is pressed, a signal is sent to the outer mirror control ECU assembly (for driver side) and the seat position changes according to memory.
Lumbar support adjustment switch (power seat switch assembly)		Operates the motor built into lumbar support adjuster assembly (separate type front seat back spring assembly) according to switch operation.

SYSTEM OPERATION

The front power seat functions which can be adjusted with the power seat motors and memorized are shown below.
The seat memory switch sends memory switch information to the outer mirror control ECU assembly (for driver side). Then the information is sent to the main body ECU (multiplex network body ECU) via CAN and then an instruction to memorize the seat position is sent to the position control ECU and switch assembly via CAN. As a result, the seat position is memorized.

Seat Adjustment Function	Driver Seat	Passenger Seat
Sliding	Power and Memory	Manual
Reclining	Power and Memory	Manual
Front Vertical	Power and Memory	Manual
Lifter	Power and Memory	Manual
Lumbar Support	Power	Manual