Seats: Description and Operation

SYSTEM OUTLINE

Current is always applied from ECU-8 fuse to TERMINAL SYSB of the memory seat ECU, from PWR SEAT fuse to TERMINAL +B of the memory seat ECU.
With the ignition SW turned on, current flows from ECU-IG fuse to TERMINAL IG of the memory seat ECU and from the GAUGE2 fuse to TERMINAL 3 of the A/T indicator light SW.

Power Seat Operation (Driver's Seat)
Current is always applied to TERMINAL SYSB and TERMINAL +B of the memory seat ECU so that memory seat ECU is always ready to operate.
When the power seat control SW is pushed to the "FRONT SLIDE position" side, a signal is input into TERMINAL SLDF of the memory seat ECU, the ECU operates and the current to TERMINAL +B of the memory seat ECU flows from TERMINAL SLD+ of the memory seat ECU to TERMINAL 2 of the power seat motor (Driver's seat slide control) to TERMINAL 1 to TERMINAL SLD- of the memory seat ECU to TERMINAL GND to GROUND, rotating the power seat motor so that the seat slides forward while the power seat control SW is being pressed.
To slide the driver's seat to the rear, pushing the power seat control SW to the "REAR SIDE position" side, inputs a signal to TERMINAL SLDR of the memory seat ECU. This causes the current flowing from the ECU to the motor to flow from TERMINAL SLD- of the memory seat ECU to TERMINAL 1 of the power seat motor (Driver's seat slide control) to TERMINAL 2 to TERMINAL SLD+ of the memory seat ECU, flowing the reverse to front slide operation and causing the motor to rotate in reverse, so that the driver's seat moves to the rear.

The movement to other positions occurs similarly, so only the flow of current to each motor is shown:

Front Vertical Control Up Operation
TERMINAL +B of the memory seat ECU to TERMINAL FRV+ to TERMINAL 1 of the power seat motor (Driver's seat front vertical control) to TERMINAL 2 to TERMINAL FRV- of the ECU to TERMINAL GND to GROUND.

Front Vertical Control Down Operation
TERMINAL +B of the memory seat ECU to TERMINAL FRV to TERMINAL 2 of the power seat motor (Driver's seat front vertical control) to TERMINAL 1 to TERMINAL FRV+ of the ECU to TERMINAL GND to GROUND.

Lifter Control Up Operation
TERMINAL +B of the memory seat ECU to TERMINAL RRV+ to TERMINAL 1 of the power seat motor (Driver's seat lifter control) to TERMINAL 2 to TERMINAL RRV- of the ECU to TERMINAL GND to GROUND.

Lifter Control Down Operation
TERMINAL +B of the memory seat ECU to TERMINAL RRV- to TERMINAL 2 of the power seat motor (Driver's seat lifter control) to TERMINAL 1 to TERMINAL RRV+ of the ECU to TERMINAL GND to GROUND.

Reclining Control Front Operation
TERMINAL +B of the memory seat ECU to TERMINAL RCL+ to TERMINAL 2 of the power seat motor (Driver's seat reclining control) to TERMINAL 1 to TERMINAL RCL- of the ECU to TERMINAL GND to GROUND.

Reclining Control Rear Operation
TERMINAL +B of the memory seat ECU to TERMINAL RCL- to TERMINAL 1 of the power seat motor (Driver's seat reclining control) to TERMINAL 2 to TERMINAL RCL+ of the ECU to TERMINAL GND to GROUND.

Making it possible to perform memory and return functions for the seat position using the seat memory switch.