2002 CAMRY (EWD461U)
104
Multiplex Communication System
2
40A
MAIN
1G
4
1G
3
1
1
1
1
1
1
1F
2
1C
1
1E
6
1
2
EB
E 4
1
2
2
3
1
5
1H
11
1F
3
1
2
2
1
1
1
1
1
1
1
E 2
E 2
E 2
1
2
3
2
4
5
1
1
1
1
1
1
1
5
A H
EAD
R
H
L
W
R
1
5
A H
EAD
L
H
L
W
R
5
A
DRL
HEAD
Relay
DRL NO. 2
Relay
1
0
A H
EAD
R
H
U
P
R
10A
H
E
A
D
L
H
U
P
R
EC
2
1
1
1
1
1
1
2
2
2
2
D
R
L
NO
. 4
Re
la
y
D
R
L
NO
. 3
Re
la
y
H
eadl
ight
L
H
(
Lo
w
)
H 2
H
eadl
ight
R
H
(
Hi
g
h
)
H 3
H
eadl
ight
R
H
(
Lo
w
)
H 4
H
eadl
ight
LH
(
Hi
g
h
)
H 1
10A
GAUGE1
2M
1
3A
57
3A
67
3A
97
3A
87
B–G
W
R–L
R–B
R
W–B
W–R
R–Y
W–B
W–B
W–
B
R–
L
R–
W
W–
B
W–
B
R–
B
R–
B
R–
L
R–
G
R
R–
B
R–
Y
R
B–
Y
R–
L
R
R
R–
B
W–
B
W–
B
W–
B
W–
B
R–
Y
B–
G
W
W–
B
R–
W
W–
B
W–
B
R–
B
W–B
W–B
W–B
W–
R
From Power Source System (See Page 62)
1
(*1)
(*2)
(*1)
(*2)
12
0A
A
L
T
(1
M
Z–
FE
)
10
0A
A
L
T
(2
A
Z–
FE
)
(*3)
5
(*4)
3
(*4)
5
(*3)
3
2
1
(*3)
(*3)
2
1
(*4)
(*4)
2002 CAMRY (EWD461U)
105
5A
ECU–
ACC
From Power Source System (See Page 62)
2F
3
2F
4
IF3
10
DRL OFF(*5)
OFF(* 6)
Tail
Head
Low
High
Flash
L
ight C
ont
ro
l
S
W
Di
m
m
e
r S
W
A
9
A
10
A
8
2R
6
B
14
IK
A
16
14
13
8
7
12
AUTO(* 6)
Combination SW
C11
Body ECU
B 6(A), B 7(B), B 8(C)
C
o
m
b
in
ati
on Met
e
r
C 7
(A
),
C
8
(B
)
3B
90
3B
80
3B
60
3B
70
B
20
A
21
B
11
B
12
A
1
A
3
A
15
5
1
3
2
2E
1
H
igh B
e
a
m
W–B
R
R–B
R–L
W
B–G
W–B
SB
R–
L
SB
LG
R–
B
R
R–
Y
R–
B
R–
Y
W
R–
B
R
W–
B
W–
B
SB
TAIL
Relay
ACC
TRLY
KW
AJAR
HRLY
DRL
TAIL
HEAD
HF
HU
SDRL(*5)
AUTO(* 6)
10
14
15
16
17
(* 1)
(* 2)
(* 1)
(* 2)
Junction
Connector
J 4
* 4 : TMC Made
* 5 : USA
D
oor
Power
Buzzer
1 A
W
W
DRL(* 5)
* 6 : Canada
* 1 : Automatic A/C
* 2 : Manual A/C
* 3 : TMMK Made
2002 CAMRY (EWD461U)
106
Multiplex Communication System
Body ECU
B 6(A), B 7(B), B 8(C)
B
18
IL2
13
3B
116
3B
126
3B
116
3B
106
2G
11
2S
7
7. 5A
DOME
From Power Source
System (See Page 62)
2K
13
2M
5
2Q
5
2Q
8
2
6
2
1
3A
60
3A
70
3A
50
3A
40
3A
80
3A
70
1
1
B 2
IE1
5
V
ani
ty
Li
ght
LH
V 9
G
ener
ator
G 2
P
a
rk
ing B
rak
e
S
W
P 3
Igni
ti
on K
e
y
C
y
lin
der
Li
gh
t
I1
4
Igni
ti
on K
e
y
C
y
lin
der
Li
gh
t
I1
3
R
R
SB
W–B
R
R
W–B
SB
W–B
R
R
R
W–
B
R
G–
R
G–
R
R
W
R
(*8
)
R
(*7
)
R
R–
W
R–
W
R–
W
Y–
G
S
B
Y
–
G
ALTL
PKB
ILE
L
1
18
(P
edal
T
y
pe
)
(Lev
er
T
y
pe
)
(Le
ve
r T
y
pe
)
J
unc
ti
on
C
onnec
to
r
J 7
(A
)
(*7
)
(*8
)
4
(* 1)
(* 2)
(* 1)
(* 2)
(* 1)
(* 2)
(* 1)
(* 2)
1
(* 3)
(* 4)
2 (* 3)
2 (* 4)
B
17
P–
L
CLTS
B
16
GR
–
R
CLTE
B
15
V–
Y
CLTB
(*6
)
(*6
)
(*6
)
1
3
4
Automatic Light
Control Sensor
A28
W
W
A
A
A
A
2002 CAMRY (EWD461U)
107
1
2
B 2
B 1
B 2
2S
8
B 1
3
1
OF
F
DO
O
R
ON
IE1
4
B 1
IE1
2
IM
C
6
IC2
2
B 5
2
1
2
B 5
2
1
2
1
IC2
10
IN4
4
V
ani
ty
Li
ght
R
H
V1
0
In
te
ri
or
Li
ght
I1
7
D
iode
D 4
C
1
A
11
2
1
D
oor
C
our
te
s
y S
W
F
ront
L
H
D 6
D
oor
C
our
te
s
y S
W
F
ront
R
H
D 7
Luggage C
o
m
par
tm
ent
Li
ght
S
W
L 4
Luggage C
o
m
par
tm
ent
Li
ght
L 5
G 4
N
o
is
e
F
ilt
e
r
N 4
Body ECU
B 6(A), B 7(B), B 8(C)
R
R
SB
W–B
W–B
R
W–B
R
R
R
SB
W–B
G
R
R–
G
R–
G
R–
G
R–
G
G
G
G
RR
–
Y
R
W–
B
W–
B
W–
B
W–
B
W–
B
W–
B
W–
B
G–
R
G
–
R
R
R
R
LGCY
DCTY
PCTY
1
5
* 1 : Automatic A/C
* 2 : Manual A/C
* 7 : w/ Engine Immobiliser System
* 8 : w/o Engine Immobiliser System
* 4 : TMC Made
* 6 : Canada
* 3 : TMMK Made
(*3)
(*3)
(*4)
(*4)
2
1
(*3)
(*3)
3
2
1 (*4)
(*4)
W–B
W
W
G
a
rage D
oor
O
pener
P
e
rs
onal
Li
ght
2002 CAMRY (EWD461U)
108
Multiplex Communication System
Body ECU
B 6(A), B 7(B), B 8(C)
1
1
D
oor
C
o
u
rtes
y
S
W
R
ear
L
H
D 8
D
oor
C
o
u
rtes
y
S
W
R
ear
R
H
D 9
2K
7
2S
3
IN4
9
D 5
IN3
6
IN3
2
IN3
1
BR
B
u
zze
r
K
e
yle
ss B
u
zze
r
K 1
B
8
B
9
B
6
M
1
IC2
5
C
12
L
uggage C
o
m
p
a
rtm
ent
D
oor
O
pener
Mot
o
r
L 4
From Power Source
System (See Page 62)
5
2
3
1
2L
8
2R
8
2P
8
II
2M
8
20
5
1
2
2
3
1
GND
+B
PWS
GND
TR+
BZR
PRG
RDA
RCTY
PRG
RDA
SB
W–
B
W–
B
SB
R
W–
B
W–
B
R–
W
R–
W
R
–
W
L–W
L–W
G–
R
G
–
R
W–
L
W
–
L
W–
B
W–
B
W–B
SB
W–B
SB
R
8
12
2
30A
PWR
NO. 1
1
P
W
R Re
la
y
IF2
1
LL
W
W
D
oor
C
ont
ro
l R
e
c
e
iv
er
2002 CAMRY (EWD461U)
109
Body ECU
B 6(A), B 7(B), B 8(C)
A
19
3B
47
3B
37
3B
36
3B
46
3B
36
1
2
3A
74
3A
84
3A
44
3A
34
3A
64
3A
54
U
n
lo
ck
Wa
rn
in
g
SW
U 1
From Power Source System (See Page 62)
2M
6
10A
ECU–B
2L
6
3B
68
3A
66
3B
18
3A
36
2G
14
2P
1
25A
DOOR1
1B
5
3A
24
IJ1
4
3B
14
3B
44
A
/C Co
n
tr
o
l A
s
s
e
m
b
ly
A1
3
1
2
1
1
2
T
heft
D
e
te
rr
ent H
o
rn
T 1
E 5
E
ngi
ne
H
ood
C
o
u
rt
e
sy S
W
L 3
EA2
1
IF4
14
EA2
2
ED
IF4
15
BS
IC2
6
TV
IP
E
C
U
T 8
B
13
Theft Deterrent ECU
T 5
2
4
12
11
25
6
3
1
9
2
14
2
24
10
1
KSW
IND
E
SH–
DSWH
LUG
LP
LUG
MPX3
BDR1
SIG
B
KSW
IG
+B1
SH
MPX1
MPX
GND
L
L–W
L–W
V
V
L–W
W
W
B–
R
W–
R
V
W–
B
W
B
G–
W
G–
W
BB
G–
W
W
V
L
L
W–
B
W–
B
W–
B
W
–
B
W–
B
W–B
SB
W–B
W–B
L
V
(* 1)
(* 2)
(* 1)
(* 2)
(* 3)
(* 2)
(* 1)
(* 2)
(*9
)
(*1
0
)
(*9
)
(*1
0
)
* 3 : TMMK Made
* 4 : TMC Made
* 9 : w/ Theft Deterrent System
* 10 : w/o Theft Deterrent System
3B
16
(* 4)
(* 1)
10A
ECU–
IG
3B
38
3A
56
3A
96
W
3A
86
(* 3)
(* 4)
(*2)
(*1)
(* 2)
(* 1)
* 1 : Automatic A/C
* 2 : Manual A/C
BQ
W–
B
(*3
)
(*4
)
A
Junction
Connector
J11
(* 3)
IF3
1
(* 4)
(* 4)
33
(* 3)
3B
1
33
W
Luggage C
o
m
par
tm
ent
D
o
o
r Ke
y U
n
lo
c
k
SW
2002 CAMRY (EWD461U)
110
Multiplex Communication System
Body ECU
B 6(A), B 7(B), B 8(C)
Un
lo
c
k
Lo
ck
5
8
Un
lo
c
k
Lo
ck
3
6
5
7
4
9
1
10
8
IA1
1
IA1
6
IM2
2
IM2
6
IA1
12
IB2
7
IA1
7
IB1
2
IB1
12
2K
10
2K
1
2S
1
2S
6
C
11
A
22
A
17
D10
B 4
B 4
IA1
10
BO
D
oor
Loc
k
C
ont
ro
l
SW F
ro
n
t
L
H
D1
2
D1
3
5
7
1
8
4
6
IM2
4
IM2
11
IM2
5
IM1
2
IM1
12
D11
B13
A
18
A
21
2S
5
2K
4
L–R
W–B
W–B
W–B
W–B
W–
B
W–
B
W–
B
W–
B
W–
B
W–
B
W–
B
W–
B
W–
B
LG
G–
R
LG
G–
R
L–
R
L–
B
L–
Y
L
LG
L–
R
L–
B
L–
Y
L–W
Y
1
3
7
5
6
LG
G–
R
LG
G–
R
L–R
L–
B
L–
Y
L
LG
L–
Y
L–
W
Y
L–
Y
L–
Y
L–
W
Y
L–B
L
LG
W–B
L–R
L–B
E
E
LSWP
UL2
L2
LSWD
UL3
ACTD
UL1
L1
L
UL
L
UL
LSSR
L
UL
L
UL
LSSR
L–R
L–B
W–B
Door Key Lock and
Unlock SW Front LH
Door Lock Motor
Front LH
Door Unlock Detection SW
Front LH
D
oor
Loc
k
C
ont
ro
l S
W
R
H
Door Key Lock and
Unlock SW Front RH
Door Unlock Detection SW
Front RH
Door Lock Motor
Front RH
IM1
17
2002 CAMRY (EWD461U)
111
1
6
10
4
BB1
6
BB1
2
BB1
8
W–
B
L–
R
L–
B
L–
Y
(*4
)
4
1
6
6
BA1
8
BA1
6
BA1
2
W–
B
L–
O
(*3
)
L–
R
L–
B
B
E
A
D
A
E
2H
11
2C
5
2H
12
2C
6
B
F
B
E
B
F
IN4
11
IN4
12
2S
4
2K
16
2H
10
Ju
n
ct
io
n
C
onnec
to
r
J 7
(A
), J
8
(B
)
BB1
10
BA1
10
BR
23
19
11
L–
R
L–
B
L–
R
L–
B
L–
O
L–
O
L–
R
L–
B
L–
R
L–
R
L–
R
L–
B
L–
O
L–
O
L–
B
L–
R
L–
B
W–
B
W–
B
L–R
L–R
L–B
E
E
LSR
ACT–
ACT+
L
UL
LSSR
LSSR
L
UL
13
8
A
A
3B
41
3B
31
3B
61
3B
71
TC
EHW
A
20
B
10
J
unc
ti
on
C
onnec
to
r
J 5
D
a
ta
Li
nk
C
onne
c
tor
3
D 3
T
u
rn
S
ig
nal
F
las
h
e
r
Re
la
y
T 7
P–
B
LG
–B
P–
B
LG
–
B
Body ECU
B 6(A), B 7(B), B 8(C)
TC
HAZ
W–B
(*1)
(*2)
(*1)
(*2)
* 3 : TMMK Made
* 4 : TMC Made
* 1 : Automatic A/C
* 2 : Manual A/C
D1
5
D1
4
(* 3)
(* 3)
(* 4)
3
9
4
2
1
5
(* 3)
9
9
(* 4)
(* 4)
BB1
9
BA1
3
BB1
8
BA1
9
BB1
3
BA1
8
IN4
5
L–
O
BB1
7
BA1
7
(* 3)
(* 4)
(* 3)
(* 4)
L–
O
(*3
)
L–
Y
(*4
)
D
o
or
Lo
c
k
M
o
to
r R
e
a
r LH
D
o
o
r U
n
lo
ck D
e
te
ct
io
n
S
W
R
e
ar
LH
D
o
or
Lo
c
k
M
o
to
r R
e
a
r R
H
D
o
o
r U
n
lo
ck D
e
te
ct
io
n
S
W
Re
a
r R
H
(* 4)
(* 3)
2002 CAMRY (EWD461U)
112
Multiplex Communication System
Body ECU
B 6(A), B 7(B), B 8(C)
10A
GAUGE2
From Power Source System (See Page 62)
2
3
1
5
1D
3
2G
22
A
6
3A
80
3A
90
3A
120
3A
110
IL2
19
P
1
3
10A
HORN
2B
6
2B
11
IJ
IL1
3
A
/T
I
ndi
c
a
to
r
L
ight
S
W
A 4
HORN
Relay
24
13
SGND
HORN
P
WG
–
W
R–
L
G–
B
BR
G–
B
G–
W
R–
L
BR
(* 1)
(* 2)
(* 1)
(* 2)
* 1 : Automatic A/C
* 2 : Manual A/C
2002 CAMRY (EWD461U)
113
The multiplex communication system communicates among the body ECU, theft deterrent ECU and controls the following
systems according to the signals from respective sensors or switches.
Multiplex Communication System Includes Following Systems
∗
Automatic Light Control
∗
Door Lock Control
∗
Headlight
∗
Interior Light
∗
Key Reminder
∗
Light Auto Turn Off
∗
Theft Deterrent
∗
Wireless Door Lock Control
Body ECU
9–Ground : Approx. 12 volts with ignition SW at ON or ST position
12, 24–Ground : Always continuity
1–Ground : Always approx. 12 volts
: Parts Location
Code
See Page
Code
See Page
Code
See Page
A4
D13
J5
A4
D14
J7
A
A13
D15
J8
B
A28
E5
J11
B6
A
E5
K1
B7
B
G2
K1
B8
C
G2
L3
C7
A
G4
L4
C8
B
H1
L5
C11
H1
N4
D3
H2
P3
D4
H2
T1
D5
H3
T1
D6
H3
T5
D7
H4
T7
D8
H4
T8
D9
I13
U1
D10
I14
V9
D11
I17
V10
D12
J4
: Relay Blocks
Code
See Page
Relay Blocks (Relay Block Location)
1
Engine Room R/B (Engine Compartment Left)
System Outline
Service Hints
2002 CAMRY (EWD461U)
114
Multiplex Communication System
: Junction Block and Wire Harness Connector
Code
See Page
Junction Block and Wire Harness (Connector Location)
1B
1C
1D
1E
Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
1F
g
g
(
g
)
1G
1H
2B
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2C
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2E
2F
Engine Room Main Wire and Driver Side J/B (Lower Finish Panel)
2G
g
(
)
2H
Floor Wire and Driver Side J/B (Lower Finish Panel)
2K
Floor Wire and Driver Side J/B (Lower Finish Panel)
2L
2M
2P
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2Q
Instrument Panel Wire and Driver Side J/B (Lower Finish Panel)
2R
2S
3A
3A
Instrument Panel Wire and Passenger Side J/B (Instrument Panel Brace RH)
Instrument Panel Wire and Passenger Side J/B (Instrument Panel Brace RH)
3B
3B
∗
1 : TMC Made Automatic A/C
∗
2 : TMC Made Manual A/C
∗
3 : TMMK Made Automatic A/C
∗
4 : TMMK Made Manual A/C
: Connector Joining Wire Harness and Wire Harness
Code
See Page
Joining Wire Harness and Wire Harness (Connector Location)
EA2
Engine Room Main Wire and Engine Room No 2 Wire (Radiator Side Support LH)
EA2
Engine Room Main Wire and Engine Room No.2 Wire (Radiator Side Support LH)
IA1
Front Door LH Wire and Floor Wire (Left Kick Panel)
IB1
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IB2
Front Door LH Wire and Instrument Panel Wire (Left Kick Panel)
IC2
Instrument Panel Wire and Floor Wire (Left Kick Panel)
IE1
Instrument Panel Wire and Roof Wire (Inside of Front Left Pillar)
IF2
IF3
Engine Room Main Wire and Instrument Panel Wire (Right Side of Steering Column Tube)
IF4
g
( g
g
)
IJ1
Instrument Panel Wire and Instrument Panel Wire (Instrument Panel Reinforcement RH)
IL1
Engine Wire and Instrument Panel Wire (Behind the Glove Box)
IL2
Engine Wire and Instrument Panel Wire (Behind the Glove Box)
IM1
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IM2
Front Door RH Wire and Instrument Panel Wire (Right Kick Panel)
IN3
Instrument Panel Wire and Floor No 2 Wire (Right Kick Panel)
IN4
Instrument Panel Wire and Floor No.2 Wire (Right Kick Panel)
BA1
Rear Door LH Wire and Floor Wire (Left Center Pillar)
BB1
Rear Door RH Wire and Floor No.2 Wire (Right Center Pillar)
2002 CAMRY (EWD461U)
115
: Ground Points
Code
See Page
Ground Points Location
EB
Right Fender
EB
Right Fender
EC
EC
Left Fender
ED
Left Fender
ED
II
Cowl Side Panel LH
IJ
Instrument Panel Brace LH
IK
Instrument Panel Brace LH
IM
Instrument Panel Reinforcement RH
BO
Under the Driver’s Seat
BQ
Front Side of Rear Quarter Wheel House LH
BR
Front Side of Rear Quarter Wheel House RH
BS
Lower Back Panel Center
: Splice Points
Code
See Page
Wire Harness with Splice Points
Code
See Page
Wire Harness with Splice Points
E2
B2
Roof Wire
E2
Engine Room Main Wire
B4
Front Door LH Wire
E4
Engine Room Main Wire
B5
Floor Wire
E4
B13
Front Door RH Wire
B1
Roof Wire
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