Nissan Maxima Service and Repair Manual: Memory function

MEMORY FUNCTION : System

Nissan Maxima. MEMORY FUNCTION : System

MEMORY FUNCTION : System Description

OUTLINE

The driver seat control unit can store the optimum driving positions (seat, steering column 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 storage procedure. Refer to Owner's Manual.

OPERATION PROCEDURE

  1. Turn ignition switch ON
  2. Press desired memory switch.
  3. Front seat LH, steering column 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 Request status
Ignition position ON

Switch inputs

  • Power seat switch
  • ADP steering switch
  • Door mirror control switch
  • Set switch
  • Seat memory switch
OFF (Not operated)
CVT selector lever P position

However, the memory operation can be performed for 45 seconds after opening the front door LH (front door switch LH OFF → ON) even if the ignition switch is OFF.

DETAIL FLOW

Order Input Output Control unit condition
1 Memory switch - The memory switch signal is inputted to the automatic drive positioner control unit when memory switch 1 or 2 is operated.

Memory switch signal is input to driver seat control unit via UART communication

2 - Motors (seat, steering, door mirror) Driver seat control unit operates each motor of seat when it recognizes the memory switch pressed and requests each motor operation to automatic drive positioner control unit via UART communication. The automatic drive positioner control unit operates each motor.
Memory switch Indicator Driver seat control unit requests the flashing of memory indicator to automatic drive positioner control unit via UART communication while either of the motors is operating. The automatic drive positioner control unit illuminates the memory indicator.
3 Sensors (seat, steering column, door mirrors) - Driver seat control unit judges the operating seat position with each seat sensor input. The positions of the steering column and outside mirrors are monitored with each sensor signal that is input from auto drive positioner control unit via UART communication. Driver seat control unit stops the operation of each motor when each part reaches the recorded address
4 - Memory switch Indicator Driver seat control unit requests the illumination of memory indicator to auto drive positioner control unit via UART communication after all motors stop. The auto driving positioner control unit illuminates the memory indicator for 5 seconds

MEMORY FUNCTION : Component Parts Location

Nissan Maxima. MEMORY FUNCTION : Component Parts Location

  1. Push-button ignition switch M38
  2. BCM M16, M17, M18, M19 (view with instrument panel removed)
  3. TCM F15
  4. A. ADP steering switch M39
    B. Tilt motor M71, telescopic motor M73
  5. A. Power seat switch LH B213
    B. Reclining motor B222
    C. Driver seat control unit B203, B211
  6. Automatic drive positioner control unit M63, M67 (view with instrument panel removed)
  7. A. Door mirror LH D4
    B. Door mirror RH D107
    C. Front door switch LH B8
  8. Door mirror remote control switch M108
  9. Seat memory switch D13
    : Front

MEMORY FUNCTION : Component Description

CONTROL UNITS

Item Function
Driver seat control unit
  • The address of each part is recorded.
  • Operates each motor of seat to the registered position.
  • Requests the operations of steering column and door mirrors to automatic drive positioner control unit
Automatic drive positioner control unit Operates the steering column and door mirrors with the instructions from the driver seat control unit.

INPUT PARTS

Switches

Item Function
Memory switch 1/2 The registration and memory function can be performed with its operation.

Sensors

Item Function
Door mirror sensor (LH/RH) Detect the up/down and left/right position of outside mirror face.
Tilt and telescopic sensors Detect the up/down and front/rear position of steering column
Lifting sensor (front) Detect the up/down position of seat lifting (front).
Lifting sensor (rear) Detect the up/down position of seat lifting (rear).
Reclining sensor Detect the tilt of seatback
Sliding sensor Detect the front/rear position of seat.

OUTPUT PARTS

Item Function
Door mirror motor (LH/RH) Move the outside mirror face upward/downward and leftward/rightw
Tilt and telescopic motors Move the steering column up/down and front/rear.
Lifting motor (front) Move the seat lifter (front) upward/downward
Lifting motor (rear) Move the seat lifter (rear) upward/downward
Reclining motor Tilt and raise up the s
Sliding motor Slide the seat forward/backward
Memory indicat Illuminates or blinks according to the registration/operation status.
    Manual function

    Exit assist function