Lexus SC300 / Lexus SC400. Manual — part 1007

172

REMOTE CONTROL MIRROR (w/ DRIVING POSITION MEMORY)

CURRENT IS ALWAYS APPLIED TO TERMINAL +B OF REMOTE CONTROL MIRROR ECU THROUGH THE ECU–B FUSE.

WHEN THE IGNITION SW IS TURNED TO ON OR ACC POSITION, THE CURRENT FLOWS TO TERMINAL ACC OF THE REMOTE
CONTROL MIRROR ECU THROUGH THE RADIO NO. 2 FUSE.

REMOTE CONTROL MIRROR OPERATION

WHEN THE IGNITION SW IS TURNED TO ON OR ACC POSITION, THE REMOTE CONTROL MIRROR ECU OPERATES. WHEN THE
SELECT SW OF THE REMOTE CONTROL MIRROR SW IS MOVED TO THE LH POSITION AND THE OPERATION SW IS MOVED TO
“LEFT” SIDE, A SIGNAL IS INPUT FROM TERMINAL SWO2 OF REMOTE CONTROL MIRROR ECU TO TERMINAL 2 OF REMOTE
CONTROL MIRROR SW

→

TERMINAL 12

→

TERMINAL SWI2 OF ECU.

AS A RESULT, THE CURRENT TO TERMINAL +B OF ECU FLOWS FROM TERMINAL MHL OF ECU

→

TERMINAL 1 OF REMOTE

CONTROL MIRROR LH

→

MOTOR

→

TERMINAL 2

→

TERMINAL M+L OF ECU

→

TERMINAL GND

→

GROUND, ROTATING THE MOTOR

TO ADJUST THE ANGLE OF THE LEFT SIDE OF THE OUTER MIRROR (DRIVER’S).

TO CHANGE THE ANGLE OF THE RIGHT SIDE OF THE MIRROR, THE OPERATION SW OF THE REMOTE CONTROL MIRROR SW IS
MOVED TO THE “RIGHT” SIDE.

THEN, A SIGNAL IS INPUT FROM TERMINAL SWO2 OF REMOTE CONTROL MIRROR ECU

→

TERMINAL 2 OF REMOTE CONTROL

MIRROR SW

→

TERMINAL 8

→

TERMINAL SWI1 OF ECU. AS A RESULT, THE CURRENT TO TERMINAL +B OF REMOTE CONTROL

MIRROR ECU FLOWS FROM TERMINAL M+L OF ECU

→

TERMINAL 2 OF REMOTE CONTROL MIRROR

→

MOTOR

→

TERMINAL 1

→

TERMINAL MHL OF ECU

→

TERMINAL GND

→

GROUND, CAUSING THE ANGLE OF THE OUTER MIRROR (DRIVER’S) TO CHANGE ON

THE RIGHT SIDE.

THE MOVEMENT TO OTHER POSITIONS OCCURS SIMILARLY, SO ONLY THE CURRENT FLOW TO EACH MOTOR IS SHOWN:

SELECT SW RH POSITION, OPERATION SW LEFT POSITION

TERMINAL +B OF REMOTE CONTROL MIRROR ECU

→

TERMINAL MHR

→

TERMINAL 1 OF REMOTE CONTROL MIRROR

→

MOTOR

→

TERMINAL 2

→

TERMINAL M+R OF ECU

→

TERMINAL GND

→

GROUND.

SELECT SW RH POSITION, OPERATION SW RIGHT POSITION

TERMINAL +B OF REMOTE CONTROL MIRROR ECU

→

TERMINAL M+R

→

TERMINAL 2 OF REMOTE CONTROL MIRROR

→

MOTOR

→

TERMINAL 1

→

TERMINAL MHR OF ECU

→

TERMINAL GND

→

GROUND.

SELECT SW LH POSITION, OPERATION SW UP POSITION

TERMINAL +B OF REMOTE CONTROL MIRROR ECU

→

TERMINAL MVL

→

TERMINAL 3 OF REMOTE CONTROL MIRROR

→

MOTOR

→

TERMINAL 2

→

TERMINAL M+L OF ECU

→

TERMINAL GND

→

GROUND.

SELECT SW LH POSITION, OPERATION SW DOWN POSITION

TERMINAL +B OF REMOTE CONTROL MIRROR ECU

→

TERMINAL M+L

→

TERMINAL 2 OF REMOTE CONTROL MIRROR

→

MOTOR

→

TERMINAL 3

→

TERMINAL MVL OF ECU

→

TERMINAL GND

→

GROUND.

SELECT SW RH POSITION, OPERATION SW UP POSITION

TERMINAL +B OF REMOTE CONTROL MIRROR

→

TERMINAL MVR

→

TERMINAL 3 OF REMOTE CONTROL MIRROR

→

MOTOR

→

TERMINAL 2

→

TERMINAL M+R OF ECU

→

TERMINAL GND

→

GROUND.

SELECT SW RH POSITION, OPERATION SW DOWN POSITION

TERMINAL +B OF REMOTE CONTROL MIRROR

→

TERMINAL M+R

→

TERMINAL 2 OF REMOTE CONTROL MIRROR

→

MOTOR

→

TERMINAL 3

→

TERMINAL MVR OF ECU

→

TERMINAL GND

→

GROUND.

THE NUMBER OF TURNS OF EACH MOTOR (AMOUNT OF MOVEMENT OF EACH PART OF THE MIRROR) IS DETECTED BY THE
POSITION SENSORS AND INPUT TO THE ECU, MAKING IT POSSIBLE TO PERFORM MEMORY AND RETURN FUNCTIONS FOR THE
MIRROR POSITION USING THE DRIVING POSITION MEMORY AND RETURN SWITCH.

SYSTEM OUTLINE

173

D10

DOOR LOCK MOTOR, DOOR UNLOCK DETECTION SW AND DOOR OPEN DETECTION SW LH

3–6 : CLOSED WITH FRONT DOOR LH OPEN

D12

DRIVING POSITION MEMORY AND RETURN SW

4–3 : CLOSED WITH SET SW ON
2–3 : CLOSED WITH MEMORY NO. 1 SW ON
1–3 : CLOSED WITH MEMORY NO. 2 SW ON

R18

REMOTE CONTROL MIRROR SW

2–12: CONTINUITY WITH SELECT SW AT LH POSITION AND OPERATION SW AT LEFT POSITION

2–8: CONTINUITY WITH SELECT SW AT LH POSITION AND OPERATION SW AT RIGHT POSITION

9–12: CONTINUITY WITH SELECT SW AT RH POSITION AND OPERATION SW AT LEFT POSITION

9–8: CONTINUITY WITH SELECT SW AT RH POSITION AND OPERATION SW AT RIGHT POSITION

3–12: CONTINUITY WITH SELECT SW AT LH POSITION AND OPERATION SW AT UP OPERATION

3–8: CONTINUITY WITH SELECT SW AT LH POSITION AND OPERATION SW AT DOWN POSITION

10–12: CONTINUITY WITH SELECT SW AT RH POSITION AND OPERATION SW AT UP POSITION

10–8: CONTINUITY WITH SELECT SW AT RH POSITION AND OPERATION SW AT DOWN POSITION

R 7

REMOTE CONTROL MIRROR ECU

4–GROUND : ALWAYS APPROX. 12 VOLTS
7–GROUND : APPROX. 12 VOLTS WITH IGNITION SW AT ACC OR ON POSITION

11–GROUND : ALWAYS CONTINUITY

9–GROUND : APPROX. 12 VOLTS WITH REMOTE CONTROL MIRROR LH AT UP OPERATION
8–GROUND : APPROX. 12 VOLTS WITH REMOTE CONTROL MIRROR LH AT LEFT OPERATION

13–GROUND : APPROX. 5 VOLTS
12–GROUND : ALWAYS CONTINUITY

2–GROUND : APPROX. 12 VOLTS WITH REMOTE CONTROL MIRROR RH AT UP OPERATION
1–GROUND : APPROX. 12 VOLTS WITH REMOTE CONTROL MIRROR RH AT LEFT OPERATION

: PARTS LOCATION

CODE

SEE PAGE

CODE

SEE PAGE

CODE

SEE PAGE

D10

30

R 8

B

29

R18

31

D12

30

R16

31

T10

29

R 7

A

29

R17

31

: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR

CODE

SEE PAGE

JUNCTION BLOCK AND WIRE HARNESS (CONNECTOR LOCATION)

1D

20

FRONT DOOR LH WIRE

1H

1I

20

COWL WIRE

1J

: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS

CODE

SEE PAGE

JOINING WIRE HARNESS AND WIRE HARNESS (CONNECTOR LOCATION)

IF1

36

FRONT DOOR LH WIRE AND COWL WIRE (LEFT KICK PANEL)

IF2

36

FRONT DOOR LH WIRE AND COWL WIRE (LEFT KICK PANEL)

IP1

38

FRONT DOOR RH WIRE AND COWL WIRE (RIGHT KICK PANEL)

IP2

38

FRONT DOOR RH WIRE AND COWL WIRE (RIGHT KICK PANEL)

BT1

40

FLOOR WIRE AND COWL WIRE (LEFT KICK PANEL)

BU1

40

FLOOR WIRE AND INSTRUMENT PANEL WIRE (LEFT KICK PANEL)

Ba1

42

FLOOR WIRE AND FRONT SEAT LH WIRE (UNDER THE FRONT LH SEAT)

: GROUND POINTS

CODE

SEE PAGE

GROUND POINTS LOCATION

IF

36

LEFT KICK PANEL

IG

36

INSTRUMENT PANEL BRACE LH

IH

36

UNDER THE ASHTRAY LH

: SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

CODE

SEE PAGE

WIRE HARNESS WITH SPLICE POINTS

I 3

I11

38

COWL WIRE

I 4

38

COWL WIRE

B 9

40

FLOOR MAIN WIRE

I 5

B27

46

FRONT SEAT LH WIRE

SERVICE HINTS

174

REMOTE CONTROL MIRROR (w/ DRIVING POSITION MEMORY)

175

REMOTE CONTROL MIRRORS (w/o DRIVING POSITION MEMORY)

1D

11

M

M

M

M

1

3

2

2

3

1

12

9

2

10

3

11

8

IF2

20

IF2

9

1J

1

1D

10

IP1

13

IP1

12

IP1

9

LG–R

W–

B

W–

B

W–

B

LG

–R

LG

–

R

LG

–R

LG

–R

LG

–R

R–

Y

R–

Y

R–

Y

LG

L

G

–B

LG

–

B

LG

LG

LG

–B

LG

BR

–

B

LG

–

B

BR

–

B

BR

–

B

LH

RH

LH

RH

LE

F

T

RI

G

H

T

UP

DO

W

N

LE

F

T

UP

RI

G

H

T

DO

W

N

SE

L

EC

T

S

W

O

P

ER

A

T

IO

N

S

W

REMOTE
CONTROL
MIRROR LH

REMOTE
CONTROL
MIRROR RH

GR

7. 5A
RADIO NO. 2

REMOTE CONTROL MIRROR SW

B32

R18

R17

R16

FROM POWER SOURCE SYSTEM (SEE PAGE 56)

IF2

8

IF