Lexus ES300 (2002 year). Manual — part 10

138

Wireless Door Lock Control

BDR1

2

25A
DOOR1

5 1B

L–

W

D1

3

D

o

or

L

o

c

k

C

ont

ro

l

Re

ce

iv

e

r

IO5

5

4 IO5

PRG

B

9

RDA

B

8

2

RDA

W–

B

3

PRG

5

+B

1

E

R

L–

W

G–

R

L–W

G–

R

IO5

6

2G

14

EB

3

6

V1

2

B

V2

1

IF5

1

2

K

e

yl

e

ss B

u

zz

e

r

K 1

B

u

zze

r

LG

R

L

W–

B

K

e

yl

e

ss B

u

zze

r

O

n

/O

ff

S

W

K 4

R

BZR

J13
Junction
Connector

BB

BD

A

A

A

BC

BA1

3

J12

BB1

BB1

8

3

9

L–

B

L–

R

L–

B

L–

Y

L–

R

L–

B

L–

Y

1

6

9

19

LSR

W–

B

L–Y

L–

R

BB1

L–B

L–

Y

L–

R

L–

B

6

1

9

W–

B

W–

B

W–

B

A

Junction
Connector

L–

Y

2H

12

2S

4

2K

16

2H

10

BA1

9

BA1

8

IO4

6

IO4

4

IO4

5

BB1

10

BA1

10

LG

–B

LG

–B

A

A

10 B

HAZ

Turn Signal
Flasher Relay

T 9

EHW

8

From Power Source System (See Page 56)

Body ECU

B 4(A), B 5(B), B 6(C)

L–B

L–R

W–B

W–B

Junction
Connector

J 6

W–B

W–B

4

4

D

oor

Loc

k

Motor

R

ear

R

H

D1

6

D

oor

U

n

lo

c

k

D

e

te

c

ti

on S

W

R

ear

R

H

D

oor

Loc

k

Motor

R

ear

LH

D1

5

D

oor

U

n

lo

c

k

D

e

te

c

ti

on S

W

R

ear

LH

139

3A

40

R

14 A

RRCY

D

oor

C

our

tes

y

S

W

R

e

ar

R

H

D1

1

1

R–

Y

R

–

Y

7

IO5

12 A

RLCY

D

oor

C

our

tes

y

S

W

R

e

ar

L

H

D1

0

1

R–

W

R

–

W

5

IA2

11 A

PCTY

D

oor

C

our

tes

y

S

W

F

ront

R

H

D 9

1

R–

G

R

–

G

16

IO5

1 C

DCTY

D

oor

C

our

tes

y

S

W

F

ront

L

H

D 8

1

R–

G

R

–

G

6

IA2

W–

B

W

–

B

12

IE1

From Power Source System (See Page 56)

R

R

D

OOR

ON

OF

F

1

2

3

I1

3

Ig

ni

tio

n

K

e

y

C

y

linder

Li

ght

2

6

60 3A

8

IE1

2S

8

LP

4

8 2Q

G–

R

IA

G–

R

G–

R

R

W

I1

6

In

te

ri

or

Li

ght

IE1

3

70 3A

2Q

5

2M

5

7. 5A
DOME

BR

BR

SGND

24

11 2B

ID

Body ECU

B 4(A), B 5(B), B 6(C)

R

W–B

W–B

IB

A

Lug

gage C

o

m

par

tm

e

n

t

D

oor

O

pener

Mai

n

S

W

F1

0

Lugga

ge C

o

m

p

ar

tm

ent

D

oor

O

pener

S

W

L 1

J 1

J

unc

ti

on

C

onn

ec

tor

J 4
Junction
Connector

W

–

B

W

–B

R

L

–Y

A

A

A

5

4

1

2

5 B

TKUL

M

L 5

Lug

gage C

o

m

par

tm

e

n

t

D

oor

O

pener

Mot

o

r

10

IA2

1

W–

L

1

IA2

2

G

W–B

G

6 C

LGCY

W–

L

12 C

TR+

Lug

gage C

o

m

par

tm

e

n

t

Li

gh

t S

W

R

140

Wireless Door Lock Control

Door lock control (Lock and unlock) and panic control (Theft alarm and flash) is performed by remote control, without the
ignition key inserted in the door key cylinder, using low–power electrical waves emitted by a transmitter.

1. Wireless Door Lock or Unlock Normal Operation

With the ignition key not inserted into the ignition key cylinder (Unlock warning SW off) and all the doors completely closed,
when the lock or unlock button (Transmitter) is pushed, the door lock control receiver receives the electrical waves from the
transmitter, and sends a signal to the body ECU, causing it to operate.
As a result, the body ECU judges whether the door is locked or unlocked based on the signal from the door lock motor and
door unlock detection SW, and sends a signal to switch the condition from lock to unlock or vice versa, causing the door lock
motor to operate.

2. Visual Confirmation of Lock or Unlock

If all doors indicate that they are locked after the lock command, turn signal light will flash once. If any door indicates that it is
open after the unlock command, turn signal light will flash twice.

3. Buzzer Sound Function

If all doors indicate that they are locked after the lock command, the keyless buzzer goes on once. If any door indicates that
it is open after the unlock command, the keyless buzzer goes on twice.

4. Illuminated Entry Function

When the body ECU detects the unlock state after the unlock operation has been made, it turns on the lights, such as the
ignition key cylinder light and interior light for approx. 15 sec. If all the doors are locked during this operation, lighting is
cancelled and the lights immediately fade out.

5. Wireless Door Unlock Operation

Pushing the unlock button (Transmitter) once, driver’s door is unlocked. Furthermore, pushing the button again within 3
seconds, the other doors are unlocked.

6. Automatic Lock Operation

With the ignition key not inserted into the ignition key cylinder (Unlock warning SW off) and all the doors completely closed,
after pushing the button (Transmitter) to unlock all the doors, if a door is not opened within 30 seconds, all the doors will be
automatically relocked.

7. Wireless Control Stop Function

If a door is open (Door courtesy SW on), a signal is input from the door courtesy SW to the body ECU stopping wireless door
lock or unlock.
If the ignition key is in the ignition key cylinder (Unlock warning SW on), the unlock warning SW inputs a signal to the body
ECU stopping wireless door lock or unlock.

8. Repeat Function

If the door lock or unlock condition does not change after wireless door lock or unlock operation, 2 seconds later, the body
ECU sends current again to the door lock motor.

9. Remote Panic Operation

Panic will function when doors are locked or unlocked, open or closed. When the panic button (Transmitter) is pushed once,
theft alarm and horn sounds and turn signal light, headlights and taillight flash. Then, the panic or the unlock button
(Transmitter) is pushed once more, sounding and flashing will stop. Panic will not function when ignition key is in ignition key
cylinder.

D8, D9, D10, D11 Door Courtesy SW Front LH, RH, Rear LH, RH

1–Ground : Continuity with the door open

U1 Unlock Warning SW

2–1 : Continuity with the ignition key in the cylinder

D13 Door Lock Control Receiver

5–Ground : Always approx. 12 volts
1–Ground : Always continuity

System Outline

Service Hints

141

: Parts Location

Code

See Page

Code

See Page

Code

See Page

B4

A

38

D14

40

J8

A

39

B5

B

38

D15

40

J9

B

39

B6

C

38

D16

40

J12

40

C7

A

38

D17

40

J13

40

C8

B

38

F10

39

K1

37

D8

40

F13

40

K4

39

D9

40

I13

39

L1

39

D10

40

I16

40

L5

40

D11

40

J1

39

T9

39

D12

40

J4

39

U1

39

D13

40

J6

39

: Junction Block and Wire Harness Connector

Code

See Page

Junction Block and Wire Harness (Connector Location)

1B

25

Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)

2B

28

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

2C

28

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

2G

28

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

2H

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)

2M

2Q

29

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

2R

29

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

2S

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)

IA2

46

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

IA3

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)

IE1

46

Instrument Panel Wire and Roof Wire (Lower Part of Front Pillar LH)

IF5

46

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

IO4

48

Instrument Panel Wire and Floor No 2 Wire (Right Kick Panel)

IO5

48

Instrument Panel Wire and Floor No.2 Wire (Right Kick Panel)

IP1

48

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

IP2

48

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

BA1

50

Rear Door No.2 Wire and Floor No.1 Wire (Left Center Pillar)

BB1

50

Rear Door No.1 Wire and Floor No.2 Wire (Right Center Pillar)