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LEXUS 2012 LS460 Electrical Wiring Diagram (EM1960U)
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Brake Hold System (201109 - )
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Main Body ECU
Rear Junction Block ECU
Junction Connector
Brake Actuator
Yaw Rate Sensor
Junction Connector
Hood Courtesy Switch
Power Trunk Lid Control ECU
Luggage Closer Motor
Rear Height Control Sensor RH , Rear Pad Wear Indicator Switch , Rear Speed Sensor RH
Front Pad Wear Indicator Switch , Front Speed Sensor RH
Junction Connector
Accelerator Position Sensor
Junction Connector
Junction Connector
Spiral Cable , Steering Pad Switch with Modulator
Brake Accumulator Pump
Engine Control Module
Junction Connector
Junction Connector
Junction Connector
Rear Height Control Sensor LH , Rear Speed Sensor LH , Rear Pad Wear Indicator Switch
Combination Meter
Rear Combination Light RH
Rear Combination Light LH
Front Door Courtesy Switch LH
Junction Connector
Center Airbag ECU
Junction Connector
Junction Connector
Steering Pad Switch with Modulator , Spiral Cable
Park/Neutral Position Switch
Junction Connector
Front Seat Inner Belt Switch LH
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
Junction Connector
High Mounted Stop Light
Skid Control ECU
Parking Brake ECU
Junction Connector
Junction Connector
Noise Filter (High Mounted Stop Light)
Junction Connector
Front Pad Wear Indicator Switch , Front Speed Sensor LH
Junction Connector
Rear Combination Light LH
Rear Combination Light RH
Junction Connector
Front Controller
d=" M 203.97, 112.27 L 203.97, 180.26
d=" M 790.37, 494.70 L 790.37, 427.28
d=" M 1385.27, 494.70 L 1385.27, 427.28
d=" M 1725.21, 494.70 L 1725.21, 427.28
d=" M 1895.18, 571.19 L 1895.18, 605.18 L 2830.03, 605.18 L 2830.03, 418.22
d=" M 1895.18, 511.70 L 1895.18, 556.18
d=" M 1963.17, 214.25 L 1963.17, 265.24
d=" M 1963.17, 155.33 L 1963.17, 199.24
d=" M 2141.64, 333.80 L 2141.64, 383.65
d=" M 2141.64, 248.24 L 2141.64, 298.67
d=" M 2830.03, 290.74 L 2830.03, 392.72
d=" M 3399.43, 511.70 L 3399.43, 605.18 L 3280.45, 605.18 L 3280.45, 520.76
d=" M 3399.43, 486.20 L 3399.43, 171.76 L 3280.45, 171.76 L 3280.45, 230.68
d=" M 3467.42, 511.70 L 3467.42, 588.19 L 4946.17, 588.19 L 4946.17, 435.21
d=" M 3535.41, 511.70 L 3535.41, 554.19 L 3705.38, 554.19 L 3705.38, 520.20
d=" M 3535.41, 486.20 L 3535.41, 452.21
d=" M 3535.41, 437.20 L 3535.41, 409.72
d=" M 3535.41, 316.23 L 3535.41, 392.72
d=" M 3535.41, 229.26 L 3535.41, 299.24
d=" M 3535.41, 214.25 L 3535.41, 189.32
d=" M 3705.38, 452.21 L 3705.38, 505.18
d=" M 3705.38, 384.22 L 3705.38, 435.21
d=" M 3705.38, 358.73 L 3705.38, 205.75
d=" M 3790.37, 384.22 L 3790.37, 571.19 L 4113.31, 571.19 L 4113.31, 231.81
d=" M 3237.96, 358.73 L 3237.96, 283.37
PCK1
A27
PCK1
G
SMC2
(BAT)
50A
ABS MTR1
(BAT)
2
50A
ABS MTR2
2B
(BAT)
(IG)
W-B
A19(A),A21(C)
L
BE
R
MR2
IG2
+BI3
IG1
GR
P
BE
L
P
B
BE
W
GND4
R2-
R1-
10A
ECU-IG
34
2C
C
27
C
A
21
10A
ABS
MAIN3
A
A
2
C
20
C
3
3
3
2B
2G
ABS MTR2 Relay
3
3
1
5
2
3
11
(IG)
10A
D-IG1-3
DH
9
13
1
3
43
38
(BAT)
B
GR
+BI2
+BI1
10A
ABS
MAIN2
2C
7
A
C
(BAT)
10A
ABS
MAIN1
2C
6
22
+BI4
C
BE
L
B
11
12
28
27
14
13
A
1
46
38
20
34
36
45
B
2
A
2
A
4
B
1
2G
A
MR1
GR
35
2G
E2
PRR
PFL
PMC2
VCM2
E
PRL
PFR
RLR-
RLR+
RLA-
RLA+
RRR-
RRR+
RRA-
RRA+
PAC1
FLR-
FLR+
FLA-
FLA+
FRR-
FRR+
VCM
FRA-
FRA+
BS2
SMC2
BS1
SMC1
Brake Actuator
Skid Control ECU
Brake Actuator
33
19
20
34
33
37
27
26
14
44
42
28
9
5
32
32
17
18
4
3
17
18
4
36
37
1
36
46
46
29
A27
W-B
W-B
LG
W
V
G
R
B
PCK2
GND
PCK2
E2
PRR
PFL
PMC2
VCM2
GR
19
A19(A),A21(C)
Skid Control ECU
A
PMC1
SMC1
GR
BR
A
37
BS01
B
C
BS02
B
A
FRA+
B
A
FRA-
W
A
FRR+
L
A
FRR-
LG
C
FLA+
P
C
FLA-
V
C
FLR+
L
C
FLR-
Y
C
C
RRA+
Y
C
RRA-
BR
C
6
RRR+
LG
C
42
RRR-
P
A
RLA+
P
A
RLA-
BE
A
RLR+
P
A
RLR-
V
A
MTT
L
A
VCM
B
A
PAC1
W
A
PMC1
R
A
PFR
G
A
PRL
Y
A
E
L
A
LG
P
L
+B
7
A
A
10
A
9
CANN
CANP
13
Junction
Connector
16
2
5
S60
15
4
59
60
7
18
Junction Connector
L95
7
18
5
6
B
9
B
1
CA2L
CA2H
Parking Brake ECU
S48(B)
B
W
B
W
A67
Junction
Connector
1
12
2
13
B
W
L
LG
C
30
14
ABS MTR Relay
Junction
Connector
A64(B)
W-B
W-B
B
19
B
21
R
A
P
25
CTY
M
BM2
BM1
GND1
MTT
A23(A),A24(B)
6
7
8
5
22
21
26
25
10
9
24
23
35
40
43
39
41
44
GND2
2C
19
W-B
W-B
W-B
BR
2
2
W-B
Skid Control ECU
A19(A),A21(C)
Skid Control ECU
A19(A),A21(C)
Brake Actuator
A27
DD
30
DH
20
1
R
Front Door Courtesy
Switch LH
S6
A13(A),A14(B),E3(E)
46
45
R
14
CANL
CANH
CANL
5
3
W
B
B
W
W
13
R
G
10
21
9
20
9
20
10
21
11
22
A
14
A
13
A
7
A
6
A
18
A
17
C
8
C
9
V
P
R
G
V
P
L
LG
L
LG
P
V
R
G
G
R
Junction Connector
A67
Junction Connector
A65
CA2L
CA2H
CANL
CANH
CA2H
CA2L
7
18
12
1
11
22
16
5
9
20
15
4
W
B
G
R
G
R
G
G
R
G
4
15
9
20
11
22
B
W
B
W
B
W
B
B
W
R
W
B
W
Engine Control Module
CANH
6
B
2
19
8
A
22
A
13
CANH
CANL
R
G
Junction Connector
L98
Junction Connector
L97
Junction
Connector
S59
Accelerator Position Sensor
3
2
1
R
BR
BE
B
21
B
22
B
VPA2
EPA2
VCP2
VPA2
EPA2
VCP2
6
5
4
R
BR
L
29
B
20
B
23
B
VPA
EPA
VCPA
VPA
EPA
VCPA
A36
Park/Neutral
Position Switch
2
PL
RL
NL
DL
RB
7
9
1
6
E49
(IG)
10A
E/G RM-IG1-1
A
9
2A
7
G
2
G
Junction
Connector
E52(A)
G-Y
B
Y
W
G-R
W
A
3
A
1
A
11
(BAT)
10A
RR-IG1-2
(BAT)
30A
PTL
(IG)
10A
RR MPX-B 1
LA
60
LA
3
LA
55
IG
B
ECUB
8
12
10
Y
G
B
Power Trunk Lid Control ECU
S43
W-B
11
GND
S57
Junction
Connector
7
W
B
Y
Buckle
Switch
5
Junction
Connector
S57
IG
4
W-B
4B
2
PA
51
1
2
3
GND
CA1L
CA1H
4H
1
W-B
PA
39
W-B
W-B
V
10A
P-IG1-1
PA
31
(IG)
V
4H
12
4B
12
PA
40
4J
1
W-B
59
60
B
W
4
15
3
14
Junction Connector
R48
R57
Junction Connector
5
7
1
3
20
21
W
Hood Courtesy Switch
G
A
3
A
4
CANN
CANP
21
D
HDCY
2C
4
(BAT)
10A ECU-B
10A
E/G RM-IG1-2
(IG)
28
2C
1
2
B7
W-B
2A
4
(BAT)
20A
FR CTRL ALT
30A
FR CTRL BAT
(BAT)
5
2A
Y
23
S13
16
Junction
Connector
S55
7
15
8
6
2
MPXB
LGLB
IG
+BS1
+BS2
Front Seat Inner
Belt Switch LH
S17
LBE-
LBE+
C
10
LBE+
R
G
(BAT)
5A
P-D/C CUT
BCUT
2
CUTD
1
5H
8
5B
8
PA
35
B
B
R
W
W
B
R
G
B
W
B
W
B
W
R
G
R
G
R
G
R
G
W
B
W
B
L
LG
V
P
W
B
L
LG
V
P
W
B
W-B
W-B
28
W-B
W-B
W-B
Center Airbag ECU
L73(A),S8(C)
3
1
3
NOSB
A
W-B
5H
1
5F
1
DA
57
DA
40
W-B
W-B
W-B
W-B
(*1)
(*1)
(*1)
(*1)
(*1)
(*1)
Yaw Rate Sensor
L71
G
R
G
R
R
G
R
G
R
R
G
G
A
5
A
6
A
15
A
16
CANH
CANL
CANN
CANP
Main Body ECU
L11(A)
R
G
W
B
B
W
B
W
W
B
W
B
A
5
A
1
C
1
C
5
FMIG
FMB3
BATB
ALTB
Front Controller
A50(A),A52(C),B14(D)
9
L
BDCY
(*1)
22
G
LCTY
(*1)
* 1 :w/ Power Trunk Opener and Closer System
* 2 :w/o Power Trunk Opener and Closer System
Junction
Connector
S55
C
29
CA1H
CA1L
48
49
B
W
Rear Junction Block ECU
Rear Junction Block ECU
CANN
28
B
CANP
20
B
10
7
16
CTY
+B
7
6
C
9
LCTY
G
C
16
BDCY
L
(*2)
(*2)
W-B
High Mounted
Stop Light
Rear
Combination
Light RH
B
Rear
Combination
Light LH
8
LA
29
LA
43
E
6
7
Rear
Combination
Light RH
Rear
Combination
Light LH
BR
C
4
STP3
R
3
W-B
43
LA
5
LF
7
10
9
22
Junction
Connector
S55
W-B
W-B
6
7
LF
W-B
6
L
STP2
9
D
4
BR
4
W-B
W-B
S33
S41
BR
R
S55
Junction
Connector
R
R
6
4
5
2
1
2
1
1
3
W-B
W-B
L
STP1
10
D
BR
1
4
4
S51
S52
STP4
6
B
2
2
1
1
S20
B
W-B
B
10A
RR MPX-B 1
5A
RR MPX-B 2
10A
RR-IG1-2
10A
STOP LP 1
SG
10A
STOP LP 2
PGND
(BAT)
(BAT)
(IG)
(BAT)
(BAT)
17
4
W-B
W-B
1
S62(B),S63(C),S64(D)
S62(B),S63(C),S64(D)
BR
3
T/P
B
E
T/P
B
E
E
TL
STP
Tail/
Stop
E
TL
STP
Tail/
Stop
Junction
Connector
S55
Junction Connector
S54
18
Tail/
Stop
Tail/
Stop
Luggage
Closer Motor
S36
W-B
I/F
Buzzer
Back Light
TFT Module
TFT Panel
TFT
CPU
CPU
MPX-B
IG2
Body
Earth
Signal
Earth
IG2
B
14
13
L10
Combination Meter
5V IC
CAN CONTROLLER
CPU
LED DRIVER
AUTO HOLD
HOLD
E
12
E
11
E
13
E
14
P
R
N
D
A
4
A
2
A
10
A
8
G-Y
G
14
3
R
14
3
CAN I/F
CANL
21
CANH
20
CANP
22
CANN
B
W
W
B
BR
B
W
W
B
Electric Power
Control ECU
FR+
2
A73
FL+
16
15
16
15
A
A
C
C
V
P
Y
B
FR-
FR+
FL-
FL+
1
1
A55
Front Speed
Sensor RH
2
Front Speed
Sensor LH
FR-
FL-
11
19
18
2
1
C
C
A
A
L
Y
Y
L
L
Y
Y
L
RR-
RR+
RL-
RL+
10
11
10
4
S69
3
4
Rear Speed
Sensor LH
R56
3
RL+
RR+
RL-
RR-
Rear Speed
Sensor RH
Rear Height Control Sensor RH
Rear Pad Wear Indicator Switch
Rear Speed Sensor RH
Rear Height Control Sensor LH
Rear Pad Wear Indicator Switch
Rear Speed Sensor LH
Front Pad Wear Indicator Switch
Front Speed Sensor RH
Brake Accumulator Pump
Front Pad Wear Indicator Switch
Front Speed Sensor LH
Noise Filter
(High Mounted Stop Light)
A
1
C
28
C
14
C
45
C
43
C
44
C
7
Junction
Connector
S54
Steering Pad Switch with Modulator
Steering Switch ECU
(*3)
2
F
z7(C),z14(F)
* 4 :w/o Paddle Shift Switch
* 3 :w/ Paddle Shift Switch
(*4)
2
C
1
F
1
C
12
F
12
C
8
F
8
C
W-R(*3)
W(*3)
G
R(*4)
BR(*4)
A61(A)
A
16
A
18
6
Junction
Connector
L100
8
L
L
L
P
2
L136
Junction
Connector
DA
42
(BAT)
10A
D MPX-B 2
(IG)
30
2C
10A
P-J/B
1
E2
PA
43
PA
58
17
W-B
BR
W-B
BR
W-B
6
18
ES
DA
41
DA
40
Spiral Cable
L134(A),z7(C),z14(F)
Y
Junction Connector
(Shielded)
Marker
Marker
AS1
AS1
LA1
LA1
LA1
LS1
AR1
AS2
AR1
LR1
LR1
EA4
LS1
LA1
LA1
AS2
AR1
AR1
S2
L1
L4
S4
A4
A3
L4
L3
S1
B2
A3
L1
A2
S2
A8
S1