System Outline

Current is always applied from the ECU-B fuse to TERMINAL SYSB of the power seat ECU, from the DOOR fuse to TERMINAL +B of the power seat ECU and from the STOP fuse to TERMINAL 2 of the stop light SW.
When the ignition SW is turned ON, current flows from ECU-IG fuse to TERMINAL IG of the power seat ECU and from the GAUGE fuse to TERMINAL 2 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 power seat ECU so that the power 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 power seat ECU, the ECU operates and the current to TERMINAL +B of the power seat ECU flows from TERMINAL SLD+ of the power seat ECU to TERMINAL 3 of the power seat motor (Driver's seat slide control) to TERMINAL 4 to TERMINAL SLD- of the power 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 SLIDE position side, inputs a signal to TERMINAL SLDR of the power seat ECU. This causes the current flowing from the ECU to the motor to flow from TERMINAL SLD- of the power seat ECU to TERMINAL 4 of the power seat motor (Driver's seat slide control) to TERMINAL 3 to TERMINAL SLD+ of the power 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 power seat ECU to TERMINAL FRV+ to TERMINAL 4 of the power seat motor to TERMINAL 3 to TERMINAL FRV- of the ECU to TERMINAL GND to GROUND.

FRONT VERTICAL CONTROL DOWN OPERATION
TERMINAL +B of the power seat ECU to TERMINAL FRV- to TERMINAL 3 of the power seat motor to TERMINAL 4 to TERMINAL FRV+ of the ECU to TERMINAL GND to GROUND.

REAR VERTICAL CONTROL UP OPERATION
TERMINAL +B of the power seat ECU to TERMINAL RRV+ to TERMINAL 4 of the power seat motor to TERMINAL 3 to TERMINAL RRV- of the ECU to TERMINAL GND to GROUND.

REAR VERTICAL CONTROL DOWN OPERATION
TERMINAL +B of the power seat ECU to TERMINAL RRV- to TERMINAL 3 of the power seat motor to TERMINAL 4 to TERMINAL RRV+ of the ECU to TERMINAL GND to GROUND.