System Description

SYSTEM DIAGRAM

Component		Function
Door mirror (driver side)	Mirror motor	It makes mirror face operate from side to side and up and down with the electric power that power window main switch supplies.
Door mirror (driver side)	Mirror sensor	Mirror sensor is installed to door mirror. The resistance of 2 sensors (horizontal and vertical) is changed when door mirror is operated. Power window main switch calculates door mirror position according to the change of the voltage of 2 sensor input terminals.
Door mirror (passenger side)	Mirror motor	It makes mirror face operate from side to side and up and down with the electric power that passenger door mirror control module supplies.
Door mirror (passenger side)	Mirror sensor	Mirror sensor is installed to door mirror. The resistance of 2 sensors (horizontal and vertical) is changed when door mirror is operated. Passenger door mirror control module calculates door mirror position according to the change of the voltage of 2 sensor input terminals.
Seat memory switch	Set switch	Refer to Seat Memory Switch.
	Memory switch
	Memory indicator
Sliding motor	Sliding motor	Sliding motor is activated with seat control unit. Slides the seat forward/backward by changing the rotation direction of sliding motor.
Sliding motor	Sliding sensor	Sliding sensor is integrated in sliding motor The pulse signal is input to seat control unit when sliding is performed. Seat control unit counts the pulse and calculates the sliding amount of the seat.
Reclining motor	Reclining motor	Reclining motor is activated with seat control unit. Seatback is reclined forward/backward by changing the rotation direction of reclining motor.
Reclining motor	Reclining sensor	Reclining sensor is integrated in reclining motor. The pulse signal is input to seat control unit when the reclining is operated. Seat control unit counts the pulse and calculates the reclining amount of the seat.
Thigh support motor	Thigh support motor	Thigh support motor is activated with seat control unit. Thigh support motor is moved upward/downward by changing the rotation direction of thigh support motor.
Thigh support motor	Thigh support sensor	Thigh support sensor is installed in thigh support motor. The pulse signal is input to seat control unit when thigh support is operated. Seat control unit counts the pulse and calculates the thigh support amount of the seat.
Lifting motor	Lifting motor	Lifting motor is activated with seat control unit. Lifting motor is moved upward/downward by changing the rotation direction of lifting motor.
Lifting motor	Lifting sensor	Lifting sensor is installed in lifting motor. The pulse signal is input to seat control unit when lifting is operated. Seat control unit counts the pulse and calculates the lifting amount of the seat.
Lumbar support (forward / backward) motor		Refer to Lumbar Support (Forward / Backward) Motor.
Lumbar support (upward / downward) motor		Refer to Lumbar Support (Upward / Downward) Motor.
BCM		BCM transmits the mirror control signal to power window main switch and passenger door mirror control module via LIN communication according to signal from driver seat control unit. BCM transmits the electric motor switch ON signal and mirror position signal to seat control unit via CAN communication.
PHEV-ECU		PHEV-ECU transmits the shift position signal to seat control unit via CAN communication.
Combination meter		Turns the driving position memory ON according to the request from seat control unit via CAN communication.
ABS actuator and electric unit (control unit)		ABS actuator and electric unit (control unit) transmits the vehicle speed signal to seat control unit via CAN communication.
Driver seat control unit		Refer to Driver Seat Control Unit.
Passenger seat control unit		Refer to Passenger Seat Control Unit.
Power window main switch		Operates door mirror (driver side) with the signal from the BCM. Power window main switch transmits the mirror position signal to BCM via LIN communication.
Passenger door mirror control module		Operates door mirror (passenger side) with the signal from the BCM. Passenger door mirror control module transmits the mirror position signal to BCM via LIN communication.

DESCRIPTION

The seat control unit can store the optimum driving positions (seat and door mirror position) for 2 people. If the front seat position is changed, one-touch (pressing desired memory switch) operation allows changing to the other driving position.

note	Further information for the memory storing procedure. Refer to Work Procedure.

Operation Procedure

Shift position P range.
Push memory switch 1 or 2.
Seat and door mirror will move to the memorized position.

Operation Condition

Satisfy all of the following items. The memory function is not performed if these items are not satisfied.

Item	Status
Switch inputs Power seat switch Lumbar support switch Door mirror remote control switch Set switch Memory switch	OFF (Not operated)
Shift position	P range
Memory function	Registered
Vehicle speed	0 km/h (0 MPH)
M.U.T.-III SE	Not connected

Detail Flow

Order	Input	Output	Control unit condition
1	Memory switch	—	The memory switch signal is inputted to the seat control unit when memory switch 1 or 2 is operated.
2	—	Motors (Seat, door mirror)	Seat control unit operates each motor of seat when it recognizes the memory switch pressed for 0.5 second or more and requests each motor operation to BCM via CAN communication. The BCM transmits mirror control signal to power window main switch and passenger door mirror control module via LIN communication and actuates each motor according to the operation of the door mirror remote control switch.
2	—	Memory switch Indicator	Seat control unit requests the flashing of memory indicator while either of the motors is operating. The seat control unit illuminates the memory indicator.
3	Sensors (Seat, door mirror)	—	Seat control unit judges the operating seat position with each seat sensor input. The positions of the door mirror is monitored with mirror sensor signal. Seat control unit stops the operation of each motor when each part reaches the recorded address.
4	—	Memory switch Indicator	Seat control unit requests the illumination of memory indicator after all motors stop. The seat control unit illuminates the memory indicator for 5 seconds.