Lexus ES300 (2002 year). Manual — part 35
246
Rear Window Defogger and Mirror Heater
40A
DEF
From Power Source System (See Page 56)
1
2
3
5
10A
MIR HTR
2M
8
2R
8
2C
4
2J
2
2K
18
2S
2
10A
GAUGE2
Rear Window
Defogger
IA
IC1
3
IP2
3
IC1
11
IP2
11
3A
24
3A
55
BA
SB
W–
B
W–
B
W
–
B
W–
B
W–
B
W–
B
B–
Y
B–
Y
B–
Y
B–
Y
Y–
G
B
SB
W–
B
DEF
Relay
No
is
e
Fi
lte
r 1
No
is
e
Fi
lte
r 2
1
1
1
1
5
2
2
2
21
W–
B
Choke Coil
C13
A/
C
C
o
n
tr
o
l
As
s
e
m
b
ly
A1
5
Mi
rr
or
H
eat
er
LH
M 3
(A
),
(B
)
Mi
rr
or
H
eat
er
R
H
M 4
(A
),
(B
)
GND
RDEF
* 1 : w/ Driving Position Memory
* 2 : w/o Driving Position Memory
IF
W–
B
B
5
(* 2)
A
3
(* 1)
B
5
(*2)
A
3
(*1)
A
9
(* 1)
B
4
(* 2)
A
9
(*1)
B
4
(*2)
247
DEF Relay
3–1 : Closed with the ignition SW at on and rear window defogger SW (A/C control assembly) on
M3 (A), (B) Mirror Heater LH
M4 (A), (B) Mirror Heater RH
(A) 3, (B) 5–Ground : Approx. 12 volts with the rear window defogger SW (A/C control assembly) on
(A) 9, (B) 4–Ground : Always continuity
: Parts Location
Code
See Page
Code
See Page
Code
See Page
A15
M3
A
M4
A
C13
M3
B
M4
B
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
2C
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2J
Floor No 1 Wire and Driver Side J/B (Lower Finish Panel)
2K
Floor No.1 Wire and Driver Side J/B (Lower Finish Panel)
2M
2R
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2S
(
)
3A
Instrument Panel Wire and Passenger Side J/B (Instrument Panel Brace RH)
3A
Instrument Panel Wire and Passenger Side J/B (Instrument Panel Brace RH)
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
IC1
Front Door LH Wire and Floor No.1 Wire (Left Kick Panel)
IP2
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
: Ground Points
Code
See Page
Ground Points Location
IA
Instrument Panel Reinforcement LH
IF
Instrument Panel Reinforcement RH
BA
Under the Driver’s Seat
Service Hints
248
Cellular Mobile Telephone
10A
ECU–IG
From Power Source System (See Page 56)
2K
12
5A
TEL
1D
5A
ECU–ACC
2H
6
C
2
C
6
C
3
B
7
B
14
C
1
C
4
B
11
Rear Door
Speaker LH
R17
G
G–
W
B
Y
Y–
B
G–
B
B–
R
GR
B
6
B
3
B
12
C
5
BE
MACC
SGND
5
1
W–
B
L–
Y
Telephone Microphone
T 5
A
4
A
3
B
4
B
3
S
h
o
rt Con
nec
to
r
G–
W
G
R
L–
Y
L–
Y
G–
B
R–
B
W–
B
G
O
L
Y
G–B
G–B
+B
MUTE
SPIN–
SPIN+
IG
ACC
GND
MICGND
MACC
SW–
TLSW
ACC
26
IG
12
MIGND
19
24
GND1
+B
13
SPI+
1
SPI–
14
MUTE
18
TLSW
3
SW–
16
MACC
5
Telephone Computer
1
2
D
1
D
4
B
Y
B
Y
2
15
SPOUT+
SPOUT–
R–
W
B
SP+
SP–
(*5
)
5
ID1
4
G–
B
B
5
MIC+
4
B
MICIN
W
MIC–
2
R
6
MICIN
G–B
G
SG
(*5
)
IA2
9
IA2
4
PH+
12
11
PH–
Combination SW
C10
G
G–
W
IA2
2
IA2
7
IA2
3
Y–
B
MUTE
6
RL–
RL+
Radio and
Player
R 2
IO2
8
IO2
3
II1
5
Y
Y–
B
B
Stereo Component
Amplifier
S10(A), S11(B)
BA1
1
BA1
5
B
(*1
)
(*2
)
(*4
)
T
e
lepho
ne C
o
m
p
ute
r
T1
0
(A
), T
1
1
(B
), T
1
2
(C
), T
1
3
(D
), T
1
4
(E
), T
1
5
(F
)
Y–B
(* 3)
B
4
L–
R
A14
A/C Control
Assembly
5
TELI
L–
R
IA2
8
G
TELI
TELI
4
B
2
A
4
B
6
(* 6)
A
11
(* 7)
(*2
)
Y
(*1
)
RL+
S19
Stereo Component
Amplifier
RL–
4
11
Y(* 1)
B(* 1)
249
A
1
A
10
A
11
A
2
A
3
A
4
A
5
A
6
A
7
A
8
A
12
A
13
A
14
A
15
A
17
OPT
HSW
R–A–
R–A+
HLED
PWR
CHAG
NOSR
T–A–
T–A+
C+B
GND
DT–
DNDT
UPDT
1
10
11
2
3
4
5
6
7
8
12
13
14
15
17
Cellular Phone (Hand Set)
C 4
G
R
BR
(*5
)
B–
R
(*5
)
W
O
R–
W
B
GR
(*5
)
O
R
Y
F
7
W
3
B
6 F
BR
7
G
5 F
R
2
R
15 F
L
8
SYNC
8 F
Y
1
VR
16 F
6
VG
V
3 E
B
7 E
G
2 E
R
8 E
SYNC
1 E
VR
6 E
VG
7
1
4
2
BC1
5
6
B16
V
(*5
)
(*5
)
S+
S–
GND
PCM
_ RA
PCM
_ TA
VCHG
VBATT
ID
VAL
GND
PCM
CLK
PCM
SYNC
CALL
R
ASYNC
_TXD
3
4
ASYNC
_ RXD
G
14
GND
GR
–
L
5
CALL
G
6
PCM_
SYNC
G
1
PCM_
CLK
R
12
GND
L–
O
20
ID_
VAL
B
10
VBAT
O
11
VCHG
Y
18
PCM_ TA
G
2
PCM_ RA
R
13
GND
B–
Y
19
S–
L
22
S+
W
(*5
)
(*5
)
(*5
)
GR
–
L
B–
Y
B1
G1
R1
SYNC1
VR1
VG1
B
G
R
SYNC
VR
VG
Navigation ECU
N 2
L–
O
B
Y
G
R
W
(*5
)
Telephone Computer
Telephone Computer
Telephone
Computer
21
VG
10
VR
8
SYNC
9
R
G
22
23
B
GR
–
L
GR
–
L
Y
W
R
BR
L
(*5
)
(*3
)
(*3
)
(*3
)
(*3
)
(*3
)
(*3
)
(*3
)(
*3
)
* 1 : MARK LEVINSON
* 2 : Except MARK LEVINSON
* 3 : w/ LEXUS Navigation System
* 4 : w/o LEXUS Navigation System
A
3
IO3
6
7 A
A
2
A
8
A
1
A
6
2 IO3
(*3
)
BC1
(*3
)
5
BC1
IO3
(*3
)
1
BC1
IO3
(*3
)
7
BC1
IO3
BC1
B16
I 3
(*5
)
(*3
)
(*3
)
Y
B
(*3
)
R
W
G
(*3
)
(*3
)
(*3
)
(*3
)
Y
B
(*3
)
R
(*5
)
W
G
(*3
)
(*3
)
(*5
)
BR
(*5
)
BR
D
6
TLMT
IO3
8
* 5 : Shielded
B
10
IO3
10 A
TX–
20
10 E
TX–
R
(*3
)
BC1
9
TX–
R
(*3
)
R
(*3
)
L–
O
3 IO3
5 A
TX+
7
5 E
TX+
W
(*3
)
BC1
3
TX+
W
(*3
)
W
(*3
)
1 F
LG
–R
5
TX+
TX1+
(*3
)
9 F
LG
10
TX–
TX1–
(*3
)
Y–
B
(*3
)
(*3
)
(*3
)
* 6 : 1CD Type w/o LEXUS Navigation System
* 7 : Except * 6
Radio and Player with Display
R 3(A), R 6(D)
T
e
lepho
ne C
o
m
p
ute
r
T1
0
(A
), T
1
1
(B
), T
1
2
(C
), T
1
3
(D
), T
1
4
(E
), T
1
5
(F
)
ASYNC
TXD
ASYNC
RXD
GND
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