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Front Power Seat Control (W/ Memory) (Diagnostics - Introduction): Overview Lexus HS I

Seats 3 illustrations ~459 words

Scheme 63

Scheme 63: ILLUSTRATION

Scheme 64

Scheme 64: ILLUSTRATION

Scheme 65

Scheme 65: SYSTEM DIAGRAM
SenderReceiverSignalLine
Hybrid Vehicle Control ECUMain Body ECU (Multiplex Network Body ECU)Transmission information Park (P) state signalCAN
Outer Mirror Control ECU Assembly (Driver Side)Main Body ECU (Multiplex Network Body ECU)M1 switch signal M2 switch signal M3 switch signal SET switch signalCAN
Main Body ECU (Multiplex Network Body ECU)Front Power Seat Switch LHPark (P) state signal Power switch signal Parking brake switch signal Vehicle speed signal Transmission information Driver's position buzzer request Driver seat return and away position data Driver seat position request Driver position data Return and away state signalCAN
Certification ECU (Smart Key ECU Assembly)Main Body ECU (Multiplex Network Body ECU)Smart memory call replay request Key identification No. 1 to No. 7 acquisition conditionCAN
Front Power Seat Switch LHMain Body ECU (Multiplex Network Body ECU)State signal of driver seat State signal of driver position buzzer Driver's seat belt buckle switch statusCAN
Front Door Courtesy Light Switch AssemblyMain Body ECU (Multiplex Network Body ECU)Front door courtesy light switch assembly signalLocal communication
Seat Memory SwitchOuter Mirror Control ECU Assembly (Driver Side)M1 switch signal M2 switch signal M3 switch signal SET switch signalLocal communication
Front Seat Inner Belt Assembly LHFront Power Seat Switch LHDriver seat buckle switch signalLocal communication

COMMUNICATION TABLE

SYSTEM DESCRIPTION

  1. 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 reproduce the appropriate driving position for each individual who possesses a master key or sub key.
  2. FUNCTION OF MAIN COMPONENT Component Function Slide motor Receives a signal from the front power seat switch LH, and slides the seat forward and rearward. Front vertical motor Receives a signal from the front power seat switch LH, and raises and lowers the front of the seat cushion. Lifter motor Receives a signal from the front power seat switch LH, and raises and lowers the seat cushion. Reclining motor Receives a signal from the front power seat switch LH, and tilts the seatback forward and rearward. Lumbar support adjuster assembly Receives a signal from the lumbar switch and motor operates so that lumbar support can be adjusted. Slide position sensor Built into the slide motor and sends position data to the front power seat switch LH so that it can detect seat positions at all time. Front power seat switch LH Based on the switch operation, seat adjuster signals are input to the position control ECU built into the front power seat switch to adjust the seat accordingly. 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 (driver side) sends the signals so that the seat position can be stored. Then, when a seat memory switch is pressed, signal is input to the outer mirror control ECU assembly (driver side) and the seat position changes according to memory.
  3. SYSTEM OPERATION The front power seat functions which can be adjusted with the power seat motors and memorized are shown below. Seat Adjustment Function Driver Seat Passenger Seat Sliding Power and Memory Power Reclining Power and Memory Power Front Vertical Power and Memory Power Lifter Power and Memory Power Lumbar Support Power Power The seat memory switch sends memory switch information to the outer mirror control ECU assembly (driver side). Then the information is sent to the main body ECU (multiplex network body ECU) via CAN. The information is received by the main body ECU (multiplex network body ECU) and an instruction to memorize the seat position is sent to the front power seat switch LH via CAN. As a result, the seat position is memorized.