Lexus ES300 (2002 year). Service manual — part 29

219

With the ignition SW turned on, the current flows to TERMINAL 17 of the wiper and washer SW and TERMINAL 2 of the front
wiper motor through the WIPER fuse. The current flows to TERMINAL 2 of the washer motor through the WASHER fuse.

1. Low Speed Position

With the wiper and washer SW turned to LO position, the current flows from TERMINAL 17 of the wiper and washer SW to
TERMINAL 7 to TERMINAL 1 of the front wiper motor to TERMINAL 5 to GROUND and causes the front wiper motor to run
at low speed.

2. High Speed Position

With the wiper and washer SW turned to HI position, the current flows from TERMINAL 17 of the wiper and washer SW to
TERMINAL 8 to TERMINAL 4 of the front wiper motor to TERMINAL 5 to GROUND and causes the front wiper motor to run
at high speed.

3. INT Position

With the wiper and washer SW turned to INT position, the wiper relay operates and current flows from TERMINAL 17 of the
wiper and washer SW to TERMINAL 2 to GROUND. This activates the intermittent circuit and the current flows from
TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to TERMINAL 1 of the front wiper motor to TERMINAL 5 to
GROUND and the wiper operates. Intermittent operation is controlled by a condenser charge and discharge function in the
relay.

4. Washer Continuous Operation

With the wiper and washer SW pulled to WASHER position (Washer SW ON position), the current flows from the WASHER
fuse to TERMINAL 2 of the washer motor to TERMINAL 1 to TERMINAL 11 of the wiper and washer SW to TERMINAL 2 to
GROUND and causes the washer motor to run and the window washer to spray. Simultaneously, current flows from the
WIPER fuse to TERMINAL 17 of the wiper and washer SW to TERMINAL 7 to TERMINAL 1 of the front wiper motor to
TERMINAL 5 to GROUND, causing the wiper to function.

C9 Combination SW

2–Ground : Always continuity

17–Ground : Approx. 12 volts with the ignition SW at ON or ST position

7–Ground : Approx. 12 volts with the ignition SW on and the wiper and washer SW at LO position

Approx. 12 volts every approx. 1 to 10 seconds intermittently with the ignition SW on
and the wiper and washer SW at INT position

16–Ground : Approx. 12 volts with the ignition SW on and unless the front wiper motor at STOP position

8–Ground : Approx. 12 volts with the ignition SW on and the wiper and washer SW at HI position

F7 Front Wiper Motor

2–3 : Closed unless the front wiper motor at STOP position

: Parts Location

Code

See Page

Code

See Page

Code

See Page

C9

38

J4

39

F7

36

W2

37

: Junction Block and Wire Harness Connector

Code

See Page

Junction Block and Wire Harness (Connector Location)

2A

28

Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)

2F

28

Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)

: Connector Joining Wire Harness and Wire Harness

Code

See Page

Joining Wire Harness and Wire Harness (Connector Location)

IF6

46

Engine Room Main Wire and Instrument Panel Wire (Right Side of Steering Column Tube)

: Ground Points

Code

See Page

Ground Points Location

ED

44

Left Fender

IA

46

Instrument Panel Reinforcement LH

IB

46

Instrument Panel Brace LH

System Outline

Service Hints

220

Remote Control Mirror (w/ Driving Position Memory)

IP1

14

IP1

5

IP1

4

A

A

IB1

9

IB1

19

IB1

8

IB1

18

IB1

7

IB1

6

IB1

17

A

B

A

A

A

IB

Junction
Connector

J10

B

B

E

B

MRH

MLH

MRV

MLV

MV

MH

O

per

ati

o

n S

W

Se

le

c

t SW

6

5

4

3

17

16

3

2

9

10

4

8

L–

B

G–

R

B–

R

LG

–R

Y–

G

W–

L

G–

W

B–

W

G–

W

B–

W

B–

W

G–

W

W

W

B

B–

R

Y–

G

L–

B

L–

B

Y–

G

B–

R

B

W

G–

W

B–

W

R–

W

G–

W

W

12

10

11

8

9

7

19

21

5

6

11

2

7

1

8

8

1

7

MVL

M+L

MHL

VSR

HSRL

VC

E1

HSSR

GND

From Power Source System (See Page 56)

A

C

B

A

3B

57

3B

77

3B

67

3B

47

5A
ECU–ACC

2L

1

W

GR

G

R

2

ACC

SWLV

SWRV

SWLH

SWRH

SWB

SWE

(* 1)
(* 2)

(* 1)
(* 2)

E1

VC

HSSR

G–W

B–W

MV

M+

MH

VSRL

HSRL

VC

E1

W–

B

W

–

B

14

Junction
Connector

J 1

Junction
Connector

J 4

Junction
Connector

J 8(A), J 9(B)

Memory Mirror ECU

M 2

Remote Control Mirror LH

M 3

Remote Control Mirror SW

R 8

* 1 : w/ VSC
* 2 : w/o VSC

Remote Control Mirror RH

M 4

221

IP1

13

IP1

3

IP1

12

IP1

2

G

LG

–R

Y–

G

G–

Y

G

LG

–R

Y–

G

G–

R

20

23

22

25

2

11

6

5

VSSR

MHR

M+R

SI

W–

R

1

B

VSSR

MH

M+

MV

Memory Mirror ECU

M 2

Remote Control Mirror RH

M 4

Memory Seat ECU

M 6(A), M 7(B)

B

10

BD1

5

IA4

7

B

B

A

B

3A

110

3A

100

IL1

19

1

3

30A
PWR
SEAT

From Power Source System (See Page 56)

2J

1

IL2

3

R–

L

G–

W

G–

W

G–

W

G–

W

G

–

W

G–W

W

A

/T

In

di

c

a

to

r

Li

g

h

t S

W

A 4

J

unc

ti

on

C

o

n

nec

to

r

J 6

(A

), J

7

(B

)

R–

L

10A
GAUGE2

2B

6

W–

R

10A
ECU–B

2P

6

10A
ECU–IG

2K

12

2

1

IA4

15

G–

R

24

MVR

BD1

19

B

22

G–

Y

SW1

P

D

D

BD1

1

BD1

15

IA4

16

A

10

B

24

B

12

BD1

6

L–

O

W–

R

B–

R

L–

O

B–

R

W–

R

W–

R

J

unc

ti

on

C

onn

ec

tor

J 3

+B

SYSB

IG

BD1

16

IC1

12

IC1

4

BD1

17

BD1

18

IC1

13

IC1

5

BA

B

16

B

17

B

15

D

ri

v

ing P

o

s

iti

on

Me

m

o

ry

S

W

D1

8

1

4

2

3

P

V

Y

P

V

W–

B

P

V

Y

W–

B

W–

B

BA

A

9

W–

B

W–

B

BD1

10

Y

SI

SW2

MMRY

GND

G–

Y

Mem

o

ry

1

Mem

o

ry

2

SET

D

W–R

222

Remote Control Mirror (w/ Driving Position Memory)

When the ignition SW is turned on, the outer mirrors can be operated. When the remote control mirror SW is operated, a
signal is input to the memory mirror ECU, and the outer mirror can be adjusted to the desired position.
In this system, the position sensor detects the number of rotations of each motor (Movement amount of each mirror) and
inputs it to the memory mirror ECU. This makes it possible to store and recall the outer mirror position using the driving
position memory SW. The outer mirror position is stored and recalled through communication control of the body ECU.

M2 Memory Mirror ECU

2–Ground : Approx. 12 volts with ignition SW at ACC or ON position

14–Ground : Always continuity

1–Ground : Always approx. 12 volts

: Parts Location

Code

See Page

Code

See Page

Code

See Page

A4

36

J7

B

39

M4

41

D18

40

J8

A

39

M6

A

42

J1

39

J9

B

39

M7

B

42

J3

39

J10

39

R8

39

J4

39

M2

39

J6

A

39

M3

41

: Junction Block and Wire Harness Connector

Code

See Page

Junction Block and Wire Harness (Connector Location)

2B

28

Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)

2J

28

Floor No 1 Wire and Driver Side J/B (Lower Finish Panel)

2K

28

Floor No.1 Wire and Driver Side J/B (Lower Finish Panel)

2L

29

Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)

2P

29

Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)

3A

34 (w/ VSC)

3A

35 (w/o VSC)

Instrument Panel Wire and Passenger Side J/B (Instrument Panel Brace RH)

3B

34 (w/ VSC)

Instrument Panel Wire and Passenger Side J/B (Instrument Panel Brace RH)

3B

35 (w/o VSC)

: Connector Joining Wire Harness and Wire Harness

Code

See Page

Joining Wire Harness and Wire Harness (Connector Location)

IA4

46

Instrument Panel Wire and Floor No.1 Wire (Left Kick Panel)

IB1

46

Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)

IC1

46

Front Door LH Wire and Floor No.1 Wire (Left Kick Panel)

IL1

48

Engine Wire and Instrument Panel Wire (Behind the Glove Box)

IL2

48

Engine Wire and Instrument Panel Wire (Behind the Glove Box)

IP1

48

Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)

BD1

52

Floor No.1 Wire and Front Seat LH Wire (Under the Driver’s Seat)

: Ground Points

Code

See Page

Ground Points Location

IB

46

Instrument Panel Brace LH

BA

50

Under the Driver’s Seat

System Outline

Service Hints