wiring diagram

1. 2000
LEXUS
RX
300
(EWD395U)
M
3 4
2
1
1 RX 300 ELECTRICAL WIRING DIAGRAM
2
ACC
IG1
ST1
IG2
ST2
AM1
P 1
PARK/NEUTRAL
POSITION SW
4
FromEngine Control Module
<2–8>
6
8
7 AM2
1C
3
1G
12
2C
6
B
2I
1
W
W
1C
6
1A
1
1
5
To Engine Control Module
<2–8>
140A
ALT
4
B
B
2
1
3
5
2D
2 2A
6 1 2D
1 B
A
1
2H
1
N
P
5
6
9 IH1
1G
9
B
1C
4
EB Surge tank RH
2
1
IH1
1
1G
3
1C
1
IE Cowl side panel LH
11 D 18 D
15 E
6 EC1
19 IH1
1 B
L
3
B
2
B
1
A
S
IG
B
B
1B
5
1C
7
9 II1
I
7
IGNITION
COIL
AND
IGNITER
NO.
6
I
6
IGNITION
COIL
AND
IGNITER
NO.
5
I
5
IGNITION
COIL
AND
IGNITER
NO.
4
I
4
IGNITION
COIL
AND
IGNITER
NO.
3
I
3
IGNITION
COIL
AND
IGNITER
NO.
2
I
2
IGNITION
COIL
AND
IGNITER
NO.
1
A
See
Multiplex
Communication
System<7–18>
To Engine Control
Module<2–10>
J 5
JUNCTION
CONNECTOR
N
1
NOISE
FILTER(Ignition
System)
STARTER
RELAY
4 2 4 2 4 2 4 2 4 2 4 2
1 3 1 3 1 3 1 3 1 3 1 3
1
2
B
B
B
B–W
B
W–L
B–Y
W
B
B–W
W–L
W
W
W–B W–B W–B W–B
W–R W–R W–R W–R W–R
W–L
W–R
W–L
B–W
W–B
B
B–W
B–W
W–R
W–R
W–R
B–Y
W–R
L–R
R
Y–G
W–R
L–Y
W–R
Y
W–R
G–B
W–B
W–B
B
W–B
B
W–B
B
W–B
B
W–B
B
W–B
B
W–B
Y
Y
W–L
B–R
W
B–R
B–Y
W–R
B
B
I15
IGNITION SW
F 9
FUSIBLE LINK BLOCK
B
A
STARTER
, S 2
S 1
G 1 G 2
,
GENERATOR
A B
ENGINE
CONTROL
MODULE
E
D
E
8
E
9
,
Starting and Ignition
Power Source
15A
ECU–IG
7.
5A
STARTER
7.
5A
ALT–S
50A
MAIN
20A
AM2
40A
AM1
RL
MPX1 MPX2
Charging
3
2
1
W–B

2. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
(Cont.
next
page)
2
RX
300
1
3A
1K
7
1C
7.
5A
IGN
B–R
2
7
ACC
IG1
IG2
ST2
AM1
4
6
AM2
W–G
140A ALT
40A AM1
2
1
3
1E
10
6
1C
2C
6
2B
7
1C
1
1A
1
2I
1
13
W
1C
3
1G
12
BATTERY
1
1G
1G
6
2G
2
2F
4
2B
4
2B
8
2
1
3
5
ED
1
Right
radiator
side
support
1
L–Y
1
1
B–R
5
2B
8
IB1
W–L
5
4
M
BI
5B
3
5B
11
IF
Dash
panel
center
J
2
JUNCTION
CONNECTOR
A
W
W
W
B–O
W–L
W–R
B–Y
W–B
W–B
L–W
B–Y
L–R
R–W R–L Y–G
W–B
B–O W–B W–B
BR–W
W
B–Y
BR–W
B–R
B–R
L–W
B–W
B–O
B–Y
W–L
B
7. 5A OBD
I15
IGNITION
SW
20A EFI
20A AM2
B–Y
A
A
W–B
F
W–B
N
M
B
BAT
4
5
16
B–W
L–Y
Upper
the
rear
axle
housing
left
EFI RELAY
CIRCUIT OPENING
RELAY
F16
FUEL PUMP
J12
JUNCTION
CONNECTOR
2G
15A HEATER
D
4
DATA
LINK
CONNECTOR
3
CG
SG
C
BR–W
K
H
D
1
DATA
LINK
CONNECTOR
1
2
3
5
1
E
ngine
C
ontrol
and
E
ngine
Immobiliser
S
ys
tem
P
ow
er
S
ource
BR–W
P–B
P–B
3
8
G
E1
TE1
5
25A A/F HTR
2
1
2
2
W
B–W
Y–G
B–W
L–Y
W–B
2
1
2
B–R
W–B
I
B–W
D
A/F HEATER
RELAY
B
B–W
L–R
B–W
B–W
B–R
F
9
FUSIBLE
LINK
BLOCK
5
A
16
C
1
5
2
2
7
SIL
3E
5
W
W–L
FromBody
ECU<7–11>
IH1
11
A
B–O
B
3
2
3
2D
L–W
B–R
B–R
BR–W
1C
4
1F
6
B–W
8
B–W
E
B–W
B–W
L
J
7. 5A STARTER
W
FromCenter Airbag
Sensor Assembly
<13–4>
1
B–O
MALFUNCTION
INDICATOR LAMP
[COMB. METER ECU]
C
A
C12 C14
,
W
B–O
B–O
W–B
+B
12
L–W
1E
12
1L
3
1E
3
5A
8
5A
9
5A
10
W
ST1

3. 2000
LEXUS
RX
300
(EWD395U)
M
7 8
6
5
(Cont. next page)
2 RX 300 (Cont’ d)
2
G–B
Y
L–Y
Y–G
MPX1
11 D
D
18
MPX2
B–O
C
25
IGF
BR–W
(*1)
B–R
B–R
W–B
B–R
B–R B–R
Y–R
B–R
W–B
B–R
W–B
L–R
V12
VSV(Pressure
Switching
Valve)
R–Y
W
B
B
L–Y
Y–G
E
1
I12
INJECTOR
NO.
5
I10
INJECTOR
NO.
3
I11
INJECTOR
NO.
4
1
2
1
2
1
2
1
2
EB
I13
INJECTOR
NO.
6
IA2
LG
2
I
9
INJECTOR
NO.
2
I
8
INJECTOR
NO.
1
G
R
L
B
Y
W
B–O
P–B
31 C
E02
1
2
1
2
1
2
1
2
1
L–R
L–R
L–R
L–R
L–R
L–R
L–R
L–R
L–R
1
2
C B C B
A
A A A
JUNCTION
CONNECTOR
L–W
BR–W BR–W
L–R
Surge tank RH
L–W
1 3
L–R
2 4
W–B
Y–G
L–Y
B–R
B–R
L–W
B
21
B
20
1
B
12
2
1 3
19
BR
IGT3
ENGINE CONTROL MODULE
W
L–W
B–Y
L–R
P–B
H
9
HEATED
OXYGEN
SENSOR
(Bank
1
Sensor
2)
3
BR BR–W
HAFR
D
AFR+ AFR– HAFL
A
AFL+ AFL–
C
L
R
G
B
7
A
To Ignition Coil and Igniters
<1–2><1–3><1–4>
IGT4
W
IGT5 IGT6
B
4
1
B
11
3
B
OX
HT
E1
+B
3
RL
BATT
TC IGSW #10 #20 #30 #40 #50 #60
SIL
FC HTS OXS ACIS ACI1 ACM1 EVP1 RSO
(*1)
Engine Control and Engine Immobiliser System
4
2
4
8
2
W
1
G
L
B–R
F
B–R
D
E
F
L–Y
W–L
G
IA2
B–W
H
B–W
B–Y
I
J
K
L
M
N
IA2
A12
AIR
FUEL
RATIO
SENSOR
(Bank
2
Sensor
1)
A11
AIR
FUEL
RATIO
SENSOR
(Bank
1
Sensor
1)
B–R
MREL
E01
BR–W (*1)
21 C
(*1)
, E 6
E 5 A B , E 7 C , E 8 D , E 9 E
A
J
3
J
4
B
,
TBP
W–B
B–R B–R
16 C
15 C
14 C
13 C
15 E
L–R
C
IGT2
12
IGT1
B–Y
11 C
4 C
3 C
2 C
1 C
6 B
5 B
2 D
5 E 1 D
D
4 8 D
B
EB1
2
B–R
B–R
B–R
26 C
7 B
11 A
15 B
17 C
8 E
9 E
3 D
W
6 D
IB1
L–W
+B
16 D
L–W
3
L–W
L–R
EB1
4
IE2
8
Y–G
L–W
B–W
E
B–W
B–W
NSW
20 E
L–W
L–W
C
See
Multiplex
Communication
System<7–18>
From
Ignition
Coil
and
Igniters
<1–3>
See
Charging
System
<1–4>
* 1 : Shielded
B
IH1
8
W–B
2
1
CCV
B–R
10 D
B–R
18 IH1
G
G
I
1
IDLE
AIR
CONTROL
VALVE
V
4
VSV(EVAP)
V
3
VSV(ACM)
V
2
VSV(ACIS
No.
2)
V
1
VSV(ACIS
No.
1)
V11
VSV(Canister
Closed
Valve)

4. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
11
12
10
9
2
RX
300
(Cont’
d)
10
B
Y–R
22
B
L–B
19
B
G–B
23
B
L–W
2
B
Y–B
17
D
L–O L–O
14
B
G–W
18
B
BR
15
D
G–O
2
EA1
EA1
4
1
EA1
3
EA1
1
1
1
(*1)
2
1
1
2
(*1)
(*1)
(*1)
M 1
MASS AIR FLOW
METER
V 9
VAPOR PRESSURE
SENSOR
T 2
THROTTLE POSITION
SENSOR
28
C
27
C
16
B
24
B
10
C
9
B
(*1)
FromStop Light SW
<5–2>
E 2
ENGINE COOLANT TEMP. SENSOR
B
B W
W W
B
W
W
O
W
B–Y
BR
BR
ENGINE
CONTROL
MODULE
BR
3
4
2
3
3
2
1
22
(*1)
BR
Y–B
Y–B
W
From
Park/Neutral
Position SW<1–2>
V 6
VVT SENSOR RH
C 4
CRANKSHAFT POSITION
SENSOR
O
PS
STA
VV1
NE–
NE+
KNKR
KNKL
VG
THA
E2G
VTA1
VC
PTNK
K 2
KNOCK SENSOR 2
K 1
KNOCK SENSOR 1
P 4
POWER STEERING
OIL PRESSURE SW
THW
VTA
E2
VC
E2
STP
2
1
1
2
CF
26
E
27
E
R–W
Y–B
Y–B
To Combination Meter
ECU<21–2>
FromFAN NO. 1 Relay
or FAN NO. 2 Relay
<22–3>
O
(*1)
O
TACH
E
n
gine
C
ontrol
and
E
ngine
Immobilis
er
S
ystem
T
6
TRANSPONDER
KEY
AMPLIFIER
EC
Rear
side
of
surge
tank
BR
B
17
W–B
B
8
W–B
B
1
W–B
C
30
A
A
A
A
A
A
L
BR
A
A
J10
JUNCTION
CONNECTOR
E03
E04
E05
W–B
E1
C
D
E
F
18
E
TXCT
19
E
RXCK
28
E
CODE
22
D
IMLD
23
E
KSW
IE
Cowl
side
panel
LH
See Multiplex
Communication
System<7–18>
V
P
GR
B–R
(*1)
(*1)
BR–W
(*1)
(*1)
(*1)
L–W
BR
B–R
BR
5
1
A
,
E
6
E
5
A
B
,
E
7
C
,
E
8
D
,
E
9
E
To Unlock
Warning SW
<7–11>
(*1)
A
L–W
W–B
C
2
IH1
L
B–W
VV2
V 5
VVT SENSOR LH
2
L
1
7
D
A
(*1)
9
IE2
1
17
A
Y–G
MOPS
O 1
OIL PRESSURE SW
12
IJ1
22
E
SPD
V–W
To Combination
Meter ECU<21–2>
6
C
OC1+
Y–B
5
C
OC1–
G–W
29
C
OC2+
G–R
18
C
OC2–
G–Y
G–W
G–Y
C 1
CAMSHAFT TIMING OIL
CONTROL VALVE LH
C 2
CAMSHAFT TIMING OIL
CONTROL VALVE RH
A
V–W
J
5
JUNCTION
CONNECTOR
See Automatic Air
Conditioning System
<23–3>
10
A
LCKI
*
1
:
Shielded
6
E
ACMG
TRANSPONDER
KEY
COIL
1
2
3
4
5
+B
CODE
PXCK
TXCT
GND
ANT1
ANT2
W–B
W–B
L–W
B
W–B
W–B
3
IH1
BR
BR
BR
BR
1
1
2
2
BR
16
IM1
15
IM1
17
IM1

5. 2000 LEXUS RX 300 (EWD395U)
MEMO

6. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
3
RX
300
2
ACC
IG1
ST1
IG2
ST2
AM1
4
AM2
1C
6
R–Y
1A
1
3
140A ALT
R–Y
2
1
3
5
1J
4
EA
Engine
compartment
right
A
1
2
12
EC1
2
1
1B
11
10A
TAIL
ED
Right
radiator
side
support
A
1
2
13
EC1
2
1
1B
4
1H
4
10
IA1
9
BC2
BM
Under
the
rear
RH
seat
A
R–W
1
2
R–L
1
2
A
A
BI
Upper
the
rear
axle
housing
left
1
2
1
2
A
Back
panel
center
BN
D
D
4
BC2
C
C
5
BD1
4
1
5
IA1
13
IE1
1
18
E
A
D
B
1H
2
7.
5A
GAUGE
15A
HEATER
1K
13
1C
7
3A
1
3E
5
1
4
B
4
BD1
1
2
11
9
A
B
B
2
1
3
4
8
B
D
C
A
C
A
A
B
A
W–L
B–Y
W–B
G
G
G–O
G–O
W–B
W–B
W–B
G–O
R–Y
W–L W W
G–W
G
B–Y
G
G–W G–W
G–W
G
G
W–B
W–B
W–B
W–B
W–B
W–B
G
G
G
G
G
W–B
W–B
W–B
G
G
W–B
W–B
G–O G–O G–O
G–O
G–O
G–O
W–B
W–B
G
See Illumination System
<4–1>
J
2
JUNCTION
CONNECTOR
J
1
JUNCTION
CONNECTOR
I15
IGNITION
SW
J15
JUNCTION
CONNECTOR
J12
JUNCTION
CONNECTOR
TAILLIGHT
RELAY
L
2
LIGHT
FAILURE
SENSOR
R 9
TAILLIGHT RH
[REAR COMB. LIGHT RH]
F 3
FRONT SIDE MARKER LIGHT LH
P 2
PARKING LIGHT LH
P 3
PARKING LIGHT RH
F 4
FRONT SIDE MARKER LIGHT RH
R20
REAR SIDE MARKER LIGHT RH
L 1
LICENSE PLATE LIGHT
R19
REAR SIDE
MARKER LIGHT LH
R 7
TAILLIGHT LH
[REAR COMB. LIGHT LH]
R 8
TAILLIGHT LH
[REAR COMB. LIGHT LH]
R10
TAILLIGHT RH
[REAR COMB. LIGHT RH]
C14
REAR LIGHTS
WARNING LIGHT
[COMB. METER ECU]
JUNCTION CONNECTOR
A
B
J 3 J 4
,
R–L
R–L
J11
JUNCTION
CONNECTOR
BATTERY
P
ow
er
S
ource
T
aillight
W–B
J13
JUNCTION
CONNECTOR
J14
JUNCTION
CONNECTOR
J11
JUNCTION
CONNECTOR
T–
40A AM1
GND
T+
IL
IG
5
F 9
FUSIBLE LINK BLOCK

7. 2000
LEXUS
RX
300
(EWD395U)
M
3 4
2
1
4 RX 300
140A
ALT
3
IH
Instrument panel
brace RH
3H
9
3H
10
2
1
3H
2
22
C
C
12
3D
3E
10
3E
8
5 3A
8
9
7 3A 3G
1
1
2
3G
8 1 3H
1
4
7 3D 3H
4
8
4
3H
7 8 3I
5
6
6 3D 3F
5
2
3
3J
2 8 3K
B
7
1
4
B
6
B
14
B
10
1 3K
4
2
1
8 IK2
A
IE
Cowl side
panel RH
TAIL
OFF
HEAD
T H EL
LIGHT
CONTROL
SW
14
1K
7
7.
5A
PANEL
16 A
7 D
1J
4
5
3
1
2
3A
12
1A
1
W
W–B
BR–W
B–R
Y
LG–B
16
1
2
4
3
G
G
G
G
G
G
G
G
W–B
W–G
W–G
W–G
W–G
W–G
W–G
Y
W–B
G
G
W–B
G–R
G–W
W
W
G
J 5
JUNCTION
CONNECTOR
G
3
GLOVE
BOX
LIGHT
S21
SEAT
HEATER
SW
(Driver’
s
Seat)
T
5
TRACTION
CUT
SW
ILLUMINATION
E
4
ELECTRONICALLY
CONTROLLED
TRANSMISSION
PATTERN
SELECT
SW
ILLUMINATION
I16
INSTRUMENT
CONTROL
PANEL
ILLUMINATION
O
2
O/D
MAIN
SW
ILLUMINATION
C11
CIGARETTE
LIGHTER
ILLUMINATION
H
7
HAZARD
SW
A28
ASHTRAY
ILLUMINATION
C17
COMBINATION
SW
R 6
RHEOSTAT
B 5 B 8
,
BODY ECU
A D
3F
F 9
FUSIBLE LINK
BLOCK
TAILLIGHT
RELAY
TAIL
TRLY
E
TC
RV
T
ILL–
E2
ET
TC
TR
ILL+
BATTERY
C13 C14
,
COMBINATION METER ECU
B C
Power Source Illumination
5
2
3 IK2
W–G
W–G
9 3K
1
4
4 3F
G
W–G
S22
SEAT
HEATER
SW
(Front
Passenger’
s
Seat)

8. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
5
RX
300
2
ACC
IG1
ST1
IG2
ST2
AM1
4
AM2
40A AM1
20A STOP
1C
6
1A
1
3
140A ALT
1E
1
1
2
5B
5
5E
11
5E
12
5E
5
5C
3
9
IA1
3
BC2
1
3
1
3
BN
Back
panel
center
A
B
B
5
BC3
BM
Under
the
rear
RH
seat
A
4
3
3
BD1
A
A
1C
7
7.
5A
GAUGE
15A
HEATER
R–L
1H
2
1K
13
3A
1
3E
5
E
A
D
B
BI
Upper
the
rear
axle
housing
left
A
A
4
3
BN
Back
panel
center
A
1
2
1
2
A
A
11
BC2
6
IA1
20
IH1
C
C
8
2
10
IH1
1G
2
1
18
13
IE1
5
IA1
1
2
2
11
4
2
1
1
A
A
A
A
A
R–L
B–Y
B–Y
W–L
G–R
A
A
W–B
W–B
W–B
G–R
W–B
W–L W W
G–W
G–B
G–W G–W
G–O
G–W
G–W
G–R
G–Y G–Y
W–B
W–B
W–B
G–R
G–R
G–R G–R W–B
W–B
W–B
G–R
G–R
W–B
R–B W–B
W–B
R–B
R–B
R–B
R–B
R–B
R–L
R–L
R–W
R–Y R–Y
R–L
R–B
G–R
R–Y
J
8
JUNCTION
CONNECTOR
I15
IGNITION
SW
H10
HIGH MOUNTED
STOP LIGHT
J13
JUNCTION
CONNECTOR
J11
JUNCTION
CONNECTOR
J12
JUNCTION
CONNECTOR
J14
JUNCTION
CONNECTOR
J13
JUNCTION
CONNECTOR
S
9
STOP
LIGHT
SW
To Body ECU<7–14>
To Shift Lock ECU
<10–3>
R 8
STOP LIGHT LH
[REAR COMB. LIGHT LH]
R10
STOP LIGHT RH
[REAR COMB. LIGHT RH]
R 9
STOP LIGHT RH
[REAR COMB. LIGHT RH]
R 7
STOP LIGHT LH
[REAR COMB. LIGHT LH]
C14
REAR LIGHTS
WARNING LIGHT
[COMB. METER ECU]
B13
BACK–UP LIGHT RH
B12
BACK–UP LIGHT LH
L
2
LIGHT
FAILURE
SENSOR
5
8
G–W
7
BATTERY
To ABS and Traction
ECU(*1)<16–6>
To ABS ECU(*2)<17–4>
J14
JUNCTION
CONNECTOR
J15
JUNCTION
CONNECTOR
A
B
JUNCTION
CONNECTOR
,
J
4
J
3
P
ow
er
S
ource
S
top
L
ight
B
ack–
U
p
Light
5B
4
G–O
To Engine Control
Module<2–9><19–3>
GND
ST–
HS–
P 1
BACK–UP LIGHT SW
[PARK/NEUTRAL
POSITION SW]
ST+
IL
IG
F 9
FUSIBLE LINK BLOCK
B
*
1
:
w/
Traction
Control
*
2
:
w/o
Traction
Control

9. 2000
LEXUS
RX
300
(EWD395U)
M
3 4
2
1
6 RX 300
AM2
H 7
HAZARD SW
4
AM1
ST2
IG2
ST1
IG1
ACC
2
1C
6
40A
AM1
1A
1
140A
ALT
1C
7
7. 5A
GAUGE
8 1E
ED
Right radiator
side support
A
BI Upper the
rear axle
housing
left
B
A
A
4
2
11 IA1
5 II1
5D
7
5D
6
3H
9
10 3E 3A
6
22 C
11 A
3 IE2
5C
11
5C
5
10 A
4 IE2
5E
2
5E
1
5C
10
5E
6
20 IM1
6 II1
4
2
1
2
EA Engine compartment
right
To
Body
ECU
<7–14>
BM Under the rear
RH seat
A
A
19 IE1
Horn
Turn Signal and Hazard W arning
W
Power Source
2I
1
10A
HORN
15A
HAZARD
2B
2
2
1
3
5
2E
1 2B
6
6
1
1
3
1
2
IH Instrument panel
brace RH
LH
RH
TL TR TB
3
1
B
B
IF Dash panel
center
5F
3
5E
9
8 5 6 7
2
6 7
1
2
2 3 1 4
5
B–Y
G–Y
G–B
R–L
G–W
R–Y
R–B
W–B
W
W
W–L
W
G–B
G–Y
G–B
G–B
G–B
G–Y
G–Y
G–Y
G–B
G–B
G–B
G–Y
G–Y
G–Y
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
GR
GR
W–B
LG–B
W–B
W–B
W–B
W–B
G–W
W
W–R
W–R
W–R
G–W
G–W
W–B
I15
IGNITION SW
C17
TURN SIGNAL SW
[COMB. SW]
HORN
RELAY
H 5
HORN LH
J 1
JUNCTION
CONNECTOR
T 7
TURN SIGNAL FLASHER
C15
HORN
SW
[COMB.
SW]
F
6
FRONT
TURN
SIGNAL
LIGHT
RH
R
9
REAR
TURN
SIGNAL
LIGHT
RH
[REAR
COMB.
LIGHT
RH]
R
7
REAR
TURN
SIGNAL
LIGHT
LH
[REAR
COMB.
LIGHT
LH]
F
5
FRONT
TURN
SIGNAL
LIGHT
LH
J12
JUNCTION
CONNECTOR
H 6
HORN RH
J 7
JUNCTION
CONNECTOR
J 2
JUNCTION
CONNECTOR
G–W
R–L
From
Body
ECU
<7–11>
BATTERY
J15
JUNCTION
CONNECTOR
LH
RH
E B1
F
5
1
F 9
FUSIBLE LINK BLOCK
TURN
SIGNAL
INDICATOR
LIGHT
[COMB.
METER
ECU]
C
A
C12
C14
,
EHW EL ER GND
LR LL IG +B
G–W

10. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
(Cont.
next
page)
7
RX
300
1
1A
1
20A P FR DOOR
FOG
LIGHT
RELAY
40A AM1
20A P RR DOOR
20A D RR DOOR
1C
6
1H
3
8
1D
1D
12
AM2
4
3
AM1
ST2
IG2
ST1
IG1
ACC
2
3
5
2
1
10A TAIL
TAILLIGHT
RELAY
3
5
1
2
15A FR FOG
1J
4
7
1B
1B
6
1J
2
3
EC1
4
EC1
1
2
2
1
ED
Right
radiator
side
support
EA
Engine
compartment
right
2I
1
SHORT PIN
50A MAIN
7. 5A ECU–B
10A DOME
2A
4
2A
3
20A FL DOOR
4
3
1
2
2G
4
2B
1
2G
1
HEAD LAMP RELAY
2A
2
2
1
4
3
DRL NO. 2
RELAY
3
3
3
3
15A H–LP L LWR
15A H–LP R LWR
2F
3
2F
6
2A
1
1
2
1
2
ED
Right
radiator
side
support
EA
Engine
compartment
right
IE1
14
A
B
C
D
E
F
H
I
J
K
L
M
N
O
P
Q
L–B
L–W
L–Y
P
B–Y
BR–W
G–W
L–B
W–R
R
R–Y
R–B
R
R–B
W–B
P
B–Y
BR–W
L–Y
L–W
L–B
G–W
I15
IGNITION
SW
W
W
W
W–L
L–Y
L–W
L–B
L–B
R
R–B
R–B
R
W–B
W–B
W
R
R
R
R
W–R
L–B
R
R
R–L
W–B
W–B
R–B
R–B
R–B
R
A
A
A
A
A
3
H 4
HEADLIGHT RH(Low Beam)
H 2
HEADLIGHT LH(Low Beam)
J
2
JUNCTION
CONNECTOR
J 1
JUNCTION
CONNECTOR
1
2
BATTERY
R–B
F 1
FRONT FOG LIGHT LH
J
2
JUNCTION
CONNECTOR
J
1
JUNCTION
CONNECTOR
F 2
FRONT FOG LIGHT RH
P
ow
er
S
ource
M
ultiplex
C
ommunication
S
ystem
7
1J
1
2
L–B
G
140A
ALT
5
F
9
FUSIBLE
LINK
BLOCK

11. 2000
LEXUS
RX
300
(EWD395U)
M
7 8
6
5
(Cont. next page)
7 RX 300 (Cont’ d)
DRL
NO. 4
RELAY
3
3
2
3
1
3
H
3
HEADLIGHT
RH
(High
Beam)
4
1
2
3
5
3
7. 5A
DRL
15A
H–LP
R
UPR
3
2
15A
H–LP
L
UPR
2 2
H
1
HEADLIGHT
LH
(High
Beam)
4
3
2
1
2
1
3 3
1
2
3
3 3
1C
2
7.
5A
RADIO
NO.
2
1J
6
18 D
ACC
6 D
FFGO
7 D
TRLY
8 EC1
14 A
DRL
12 A
HRLY
C A A
C
A B
1 BC2
1
2
13 IA2
5 BC2
5 C
BN Back panel center
R
OFF
DOOR
BCTY
5B
8 5B
9
5E
8 5C
6
2 ID1
2
1
2
1
2
1
2
1
DOOR
OFF
ON
IE Cowl side
panel LH
J14
JUNCTION
CONNECTOR
8 ID1
3 ID1
5B
2
5F
5
2
1
5F
6
C
10
ILE
A
B
C
D
E
F
H
I
J
K
L
M
N
O
P
Q
A
B
C
D
E
F
G
H
R–B
W–R
L–B
B–Y
L–Y
L–W
L–B
L–B
L–W
L–Y
P
B–Y
BR–W
G–W
L–B
W–R
R
R–Y
R–B
R
R–B
R–B
W–B R
W–R W–R
W–B W–B
R–W
R–W
R
R–B
R–W
R
LG
W–B
W–B
R–Y
R–Y
R–W
W–B
W–B
W–B
R
R–B
W–R
W–B
W–B
W–B
W–B
R
R
R
R
R
R
R–W
R–W
R–Y
W–R
W–R
W–R
GR
BR–W
G–W
G–Y
R
P
R–W
R R R
R
GR
BR–W
G–W
R–Y
R
R–B
A A
R
J 5
JUNCTION
CONNECTOR
F14
FRONT
INTERIOR
LIGHT
P
6
PERSONAL
LIGHT
V
7
VANITY
LIGHT
LH
V
8
VANITY
LIGHT
RH
I14
IGNITION
KEY
CYLINDER
LIGHT
B
9
BACK
DOOR
COURTESY
SW
R
M ultiplex Communication System
G
L–B
4 D
BSUB
L–B
L–B
1
1
2 2
,
J
4
J
3
B
A
JUNCTION
CONNECTOR
IJ1
14
B 5 B 6
,
BODY ECU
A B B 7
, C B 8
, D
W–B
R–B
R
ON
R17
REAR INTERIOR
LIGHT
1
2
1 2
D 6
DIODE
(Rear Interior
Light)
2
1
DRL
NO. 3
RELAY
R–L
2
1
D
2
SHORT
CONNECTOR
(Canada)
D
2
DAYTIME
RUNNING
LIGHT
RESISTOR(USA)

12. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
11
12
10
9
(Cont.
next
page)
7
RX
300
(Cont’
d)
2
C
C
3
1
Left
rear
quarter
panel
BL
B
17
B
15
B
16
IA2
17
16
IA2
IA2
18
C
8
1
2
Dash
panel
center
IF
HCTY
SH
C
6
EC1
1
1
2
Engine
compartment
right
EA
II1
1
A
5
11
D
HAZ
W 5
WIRELESS
DOOR LOCK
BUZZER
4
C
OBD2
TC
13
5C
2
5F
C
16
C
20
15
A
A
16
B
5
5A
3
4
5E
4
5A
Cowl
side
panel
LH
IE
7
B
A
B
C
D
E
F
G
H
H
G
F
E
D
C
B
A
L–B
L–W
L–Y
B–Y
L–B
W–R
R–B
R
W–R
L–B
B–Y
L–Y
L–W
L–B
R–B
R
11
8
13
14
7
11
4
3
5
1
16
1
M
ultiplex
C
ommun
ication
S
y
stem
2
G–Y
R
R–L
G–R
R–W
P–B
LG–B
W–L
Y–R
LG–R
LG–B LG–B
R–L R–L W–B
W–B W–B
L
L
L
L
L–Y
LG
LG GR
LG
L–Y
L
W–B W–B
GR
W–B
R–W
BZR
BUZZER
BZR2
RSSI
RCO
RDA
KSW
FromEngine Control
Module<2–9>
U 1
UNLOCK WARNING SW
E 3
ENGINE HOOD COURTESY
SW
B
A
B
W
6
WIRELESS
DOOR
LOCK
ECU
J
7
JUNCTION
CONNECTOR
J
1
JUNCTION
CONNECTOR
T 1
THEFT DETERRENT
HORN
To Hazard SW<6–3>
FOG
LIGHT
SW
To Data Link Connector 3
<2–4>
D
1
DATA
LINK
CONNECTOR
1
CODE
VCC
SQ
E
HU
DIMMER SW
LIGHT
CONTROL
SW
OFF
TAIL
HEAD
LOW
HIGH
FLASH
OFF
ON
TAIL
HEAD
HF
FFOG
A
J
5
JUNCTION
CONNECTOR
10
17
LG
C17
COMBINATION
SW
LG–R
I
BFG
LFG
HF
HL
H
T
HU
EL
B
8
,
D
C
,
B
7
B
5
B
6
,
BODY
ECU
A
B
TC
15
IE1
LG–R
CLTS
CLTB
CLTE
D
9
D
12
D
21
4
1
3
R–B
R
R–Y
CLTS
CLTB
CLTE
A29
AUTOMATIC
LIGHT
CONTROL
SENSOR
AUTO
A
12
B
4
A
P

13. 2000
LEXUS
RX
300
(EWD395U)
M
15 16
14
13
(Cont. next page)
7 RX 300 (Cont’ d)
C
18
STPI
BDSL BDSU DBKL PKB BLVL HORN HR DFG
17 D
C
9
B
10
C
17
9 1B
14 1D
B14
BUCKLE
SW
LH
Cowl side
panel RH
IG
1
2
C
19
1
BE1
16
J 9
JUNCTION
CONNECTOR
1
4
BE1
9
IA2
14
7 C
BC2
7
BC2
8
IA2
6
IA2
5
B
18
B
19
W–B
M
BC2
6
BC3
6
BC3
2
IB1
10
IB1
9
IB1
3
17 A
A
6
A
1 20 D
IH Instrument panel
brace RH
3E
10
3H
9
4 IE1
BR–Y
MPX–
MPX+
I16
INSTRUMENT
CONTROL
PANEL
L–O
3A
1
3E
5
IF Dash panel center
W–R
13 C
23 II1
3
2
M
2
12 C
C
21
A
B
C
D
E
F
G
H
I J
H
G
F
E
D
C
B
A
R–B
R
W–R
L–B
B–Y
L–Y
L–W
L–B L–B
L–W
L–Y
B–Y
L–B
W–R
R–W
Y–R
LG–R
9 14 21 1
13 10 12
A
2 3
1
3
2
A
A
RDR+ RDR– LSWA MPX2 RWC1 RWLS RWW
12
20 22 17
B
A
1
4
13
B
W–B
W–B
R–W
R–B
G–W
LG–R
L–W
GR
L–R
L–B
L–B
L–R
GR
GR
L–R
L–B
L–W
LG–R
LG–R
L–W
G–W
G–W
W–B
W–B
W–B
W–B
LG–R
W–B
Y–R
Y–R
GR–R
GR–L
L–Y
R–L
Y–B
R
R–B
B–O
W–B
W–B
W–B
L–Y
L–W
L–Y
L–Y
W–B
A
WASH1
OFF
INT
ON
WASH2
J 7
JUNCTION
CONNECTOR
SEAT
BELT
BUZZER
OPEN
DOOR
HIGH
BEAM
G–O
P
5
PARKING
BRAKE
SW
From
Stop
Light
SW
<5–2>
From
HORN
Relay
<6–4>
From
Heater
Relay
<23–2>
From
RR
DEF
Relay
or
MIRROR
HEATER
Relay
<20–2>
B
1
BRAKE
FLUID
LEVEL
WARNING
SW
J17
JUNCTION
CONNECTOR
B10
BACK
DOOR
KEY
LOCK
AND
UNLOCK
SW
LOCK
UNLOCK
J14
JUNCTION
CONNECTOR
B11
BACK DOOR UNLOCK
DETECTION SW AND
BACK DOOR LOCK
MOTOR
M ultiplex Communication System
R
9 3F
B 8
, D
C
, B 7
B 5 B 6
,
BODY ECU
A B
I
L–W
R–L
G–W
G–W
G–W
A
F10
FRONT
PASSENGER’
S
SEAT
BELT
WARNING
LIGHT
9 BF1
2 IK2
S17
SEAT BELT
WARNING
OCCUPANT
DETECTION
SENSOR
4
1
2
5
B15
BUCKLE
SW RH
4
1
W–R
BM Under the rear RH seat
EW
16 BF1
A
J15
JUNCTION
CONNECTOR
A
W–B
J18
JUNCTION
CONNECTOR
W–B
W–B
C1R +1R WR
3D
3
C14
COMBINATION
METER ECU
BN
Back panel
center
BJ
Under the left
center pillar
W
2
WASHER
MOTOR
C16
REAR WIPER
AND WASHER SW
[COMB. SW]
8 D
15 D
SNOW PWR
See
Electronically
Controlled
Transmission
and
A/T
Indicator
System<19–6>

14. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
19
20
18
17
(Cont.
next
page)
7
RX
300
(Cont’
d)
M
3
BC3
4
BC2
BC3
1
2
IA1
7
IA1
12
IA1
4
A
7
A
3
A
J
5
JUNCTION
CONNECTOR
Back
panel
center
BN
16
D
IJ1
3
11
A
ID1
7
IH
Instrument
panel
brace
RH
3F
10
3F
13
3F
11
2
D
1C
7
8
A
6
1E
WIG
1K
13
1B
3
9
A
1K
10
1D
1
1H
2
1D
7
2
1D
3A
10
3F
6
5
D
IG
IC1
5
J14
JUNCTION
CONNECTOR
Cowl
side
panel
LH
IE
12
IC1
4
IC1
AUTO
UP
WINDOW
LOCK SW
LOCK
UNLOCK
DOWN
FRONT RH
REAR LH
REAR RH
2
A
BECU
A
B
C
D
E
F
G
H
I
J
Y–R
W–B W–B
W–B W–B W–B
W–B
L
L–O
L–W
L–W
L–O
L
L
L–O
L–W
LG
LG
W–R
W–R
LG
W–R
W–B
W–B
L–Y
G–B
R–L
R–B
R–L
L–W
R–W
R–L
R–L
R–L
J
H
G
F
E
D
C
B
A
A
A
A
2
18
22
3
2
1
4
10
25
11
1
3
5
Y–R
L–W
R–W
W–R
L–B
B–Y
L–Y
L–W
L–B
L–B
L–W
L–Y
L–B
W–R
R–L
R–L
R–L
G–B
Y
R–L
15A RR WIP
SIG
7. 5A GAUGE
L–Y
W–R
LG
MPX2
MPX1
MPX1
IMLD
MPX1
GND
Y–R
W–B
W–B
Y
M
3
MOON
ROOF
CONTROL
ECU
E
8
ENGINE
CONTROL
MODULE
T 4
THEFT DETERRENT INDICATOR
LIGHT
IND
GND2
GND1
R23
REAR
WIPER
MOTOR
15A HEATER
20A WASHER
9
EC1
L–W
RWLM
RWSW
RWIG
M
ultiplex
C
ommun
ication
S
y
stem
B–Y
R–L
R–L
B
8
,
D
C
,
B
7
I
B
5
B
6
,
BODY
ECU
A
B
1
3I
D17
DRIVER
DOOR
ECU
AUTO
UP
DOWN
AUTO
DOWN
UP
DOWN
AUTO
UP
MPX1

15. 2000
LEXUS
RX
300
(EWD395U)
M
23 24
22
21
(Cont. next page)
7 RX 300 (Cont’ d)
9 IC2
UNLOCK
D
9
DOOR
COURTESY
SW
FRONT
LH
2
1
M
MANUAL
UP
AUTO
UP
MANUAL
DOWN
AUTO
DOWN
2
P18
POWER
SEAT
ECU
(Driver’
s
Seat)
BA1
P 7
POWER WINDOW CONTROL
SW REAR LH
DN
3 BA1
1 IA1
E A
D B
1 BA1
BJ Under the left
center pillar
13 BA1
10 IC1
11 IA2
11 BA1
11
15
1
12
20
8
14
MPX1
MPX2 BDR SIG
1
2
5 BA1
4 IA1
5B
7
5D
9
8 5D
3 5D
6 IC1
W/L2
9
9 IA2
IC1
9
18
CPUB
10 BA1
BE1
15
A
18
2 3 6 4 5
A
B
C
D
E
F
G
H
I
J
J
I
H
G
F
E
D
C
B
A
L–B
L–W
W–R
R–L
R–L
Y
G–B
L–R
L–R
W
R–L
R–L
G–B
Y
W–R
L–B
L–Y
L–W
L–B
B
A
8
25
L–R
CTY CTYE PWE PCTO MUP MDN AUTO
GND
L–Y
P
P–L
GR
GR–R
R–W
R–B
R–W
R–B
W–B
W–B
G
R
L
Y
B
Y–G
L–O
BR–W
Y–R
Y
W
G–B
GR–R
GR
L–B
L–R
Y–B
R–L
L–Y
V
V
G–B
L–R
G
R
LG–R
LG–B
LG
L–B
L–B
L–R
G–B
V
V
L–Y
R–L
W
G–B
G–B
W
G–B
R–L
G–B
G–B
L–R
R–B
R–B
G–B G–B
MPX2
CPUB
A+ A– LSW LSWE
2 1 3 4
D13
DOOR LOCK MOTOR AND
DOOR UNLOCK DETECTION SW
REAR LH
Y–B
Y–B
PCTI
L–Y
D11
DOOR
COURTESY
SW
REAR
LH
P 9
POWER WINDOW MOTOR
FRONT LH
23
PULSE
SENSOR
LIMIT
SW
17
24
16
19
6
2
13
2
1
5
3
4
LMT PLS SGND UP DN
BDR
2 1 5 6 4 3
LOCK
M
CTYE
CTY
LSWE
LSW
KUL
KL
A–
A+
D15
DOOR LOCK MOTOR, DOOR UNLOCK DETECTION
SW AND DOOR KEY LOCK AND UNLOCK SW
FRONT LH
M ultiplex Communication System
G–W
L–B
D
7
DOOR
COURTESY
LIGHT
FRONT
LH
2
1
4
21
CYL
CTYB SGND
LMT
M
PLS
UP
M
MPX1
10
JUNCTION
CONNECTOR
A
B
J
3
J
4
,
G–W
R11 R12
,
REAR DOOR LH ECU
A B
D17
DRIVER DOOR ECU
A 2
1 B 3 B 10 A
POWER WINDOW MOTOR REAR LH
6 B 21 A 24 A 23 A 22 A
4 A
15 A
19 A
17 A
13 A
11 A
9 A
14 A
A
5
B
7
A
1
R–L

16. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
27
28
26
25
7
RX
300
(Cont’
d)
UNLOCK
4
LIMIT SW
M
LOCK
3
4
1
IL1
M
3
BB1
1
IM1
M
2
5
5
CPUB
PULSE
SENSOR
4
3
1
3
6
IG
Cowl
side
panel
RH
12
IL1
1
2
1G
10
1D
3
9
1D
1H
6
9
IL1
BB1
11
10
BD1
BB1
5
2
IM1
5
IL1
13
IM1
10
BB1
BK
Under
the
right
center
pillar
13
BB1
2
7
IL1
4
IL1
10
7
5
18
14
SIG
1
BB1
1
10
IM1
10
IL1
2
BB1
11
IM1
A
B
C
D
E
F
G
H
I
J
1
2
D10
DOOR COURTESY SW
FRONT RH
17
23
24
16
19
6
2
13
12
20
8
15
1
P10
POWER
WINDOW
MOTOR
FRONT
RH
D16
DOOR
LOCK
MOTOR,
DOOR
UNLOCK
DETECTION
SW
AND
DOOR
KEY
LOCK
AND
UNLOCK
SW
FRONT
RH
A
J 9
JUNCTION
CONNECTOR
25
GND
UP
DN
LMT
PLS
SGND
A+
A–
KL
KUL
LSW
LSWE
CTY
CTYE
R–W
R–B
R–B
GR–R
GR
P–L
P
L–Y
L–R
LG–R
LG–B
LG
G
W–B W–B
R
BDR
CPUB
25
A
A
20
A
24
2
3
6
4
5
2
1
W–B W–B
W–B
W–B
G
R
L
Y
B
BR–W
L–O
Y–G
R–W
Y
Y–R
L–R
Y
R–L
W–L
L–B
L–B
W–L
R–L
Y
L–R
Y–R
Y–R
G–B
L–W
R–L
L–R
W W
L–R
R–L
R–Y
R–B
L–W
L–R
L–B
GR
GR–R
G–B
Y–R
G–B
W–L
G–B
L–W
R–L
L–R
W
L–R
L–R
G–B
Y
R–L
R–L
W–R
L–W
L–B
G–B
W–R
L–B
MANUAL
DOWN
AUTO
DOWN
AUTO
UP
MANUAL
UP
MPX2
DOOR
LOCK
CONTROL
SW
POWER
WINDOW
CONTROL
SW
LOCK
UNLOCK
UP
DOWN
MPX1
PCT
MPX2
11
GND
SEL1
AUTO
MDN
MUP
PCTO
PWE
P
8
POWER
WINDOW
CONTROL
SW
REAR
RH
BDR
A+
A–
LSW
LSWE
CTYE
CTY
D12
DOOR COURTESY SW
REAR RH
D14
DOOR
LOCK
MOTOR
AND
DOOR
UNLOCK
DETECTION
SW
REAR
RH
SIG
MPX1
PCTI
M
ultiplex
C
ommun
ication
S
y
stem
SGND
LMT
PLS
M
UP
DN
1
2
D 8
DOOR COURTESY LIGHT
FRONT RH
G–W
L–B
L–B
4
21
CYL
CTYB
1
B
3
B
7
B
POWER
WINDOW
MOTOR
REAR
RH
2
B
6
B
21
A
23
A
10
A
5
A
11
A
9
A
22
8
A
A
18
A
14
A
13
A
1
A
17
A
19
A
15
A
F15
FRONT
PASSENGER
DOOR
ECU
4
A
,
R14
R13
A
B
REAR
DOOR
RH
ECU
AUTO

17. 2000 LEXUS RX 300 (EWD395U)
MEMO

18. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
8
RX
300
2
ACC
IG1
ST1
IG2
ST2
AM1
3
4
R18
REAR POWER OUTLET
AM2
1C
6
7. 5A
RADIO NO. 2
1
1A
3
BATTERY
15A
PWR OUTLET
2
1
3
5
1H
7
1D
14
B
A
B
B
B
B
1C
2
15A CIG
40A AM1
1H
1
1K
4
IH
Instrument
panel
brace
RH
3H
9
3G
3
3K
5
3A
8
BM
Under
the
rear
RH
seat
A
7
IK2
16
IM1
12
IM1
IM1
8
D
D
1E
9
15A
ECU–IG
140A
ALT
1C
7
2C
4
20A
RAD
NO.
1
2I
1
BI
Upper
the
rear
axle
housing
left
IG
Cowl
side
panel
RH
A
A
A
1
1
1
1
6
4
2
2
2
A
2
2
5
3
P
B–Y
P
W–B
GR
W–B
B–Y
W
W
W
W–L
P
GR
GR GR W–B
W–B W–B
W–B
W–B
B B
L–Y
B–R
GR
B–R
GR
L–Y
B–R
W
P P W–B W–B
W–L
J
9
JUNCTION
CONNECTOR
C10
CIGARETTE
LIGHTER
J15
JUNCTION
CONNECTOR
J
4
JUNCTION
CONNECTOR
SHORT
PIN
ACC
RELAY
J12
JUNCTION
CONNECTOR
I15
IGNITION
SW
A32
AUTO
ANTENNA
MOTOR
AND
RELAY
J
3
J
4
,
JUNCTION
CONNECTOR
B
A
F
9
FUSIBLE
LINK
BLOCK
From Radio and
Player<12–7>
W
F11
FRONT POWER OUTLET
P
ow
er
S
ource
P
ow
er
O
utlet
C
igarette
Lighter
A
uto
A
ntenna
1
5
E
ANT
ACC
IG
+B

19. 2000
LEXUS
RX
300
(EWD395U)
M
3 4
2
1
9 RX 300
2
ACC
IG1
ST1
IG2
ST2
AM1 4
AM2
6 1C
40A
AM1
1A
1
140A
ALT
1C
7
25A
WIPER
1B
2 1E
5 1B
3
20A
WASHER
Cowl side panel RH
IG
A
1D
14
1B
8
M
OFF
HIGH
LOW
INT
WASHER
+B B1 IN1 IN2 WF EW
+2
8 17
7 16
+S
+1
11
INT TIME
IF
B
B
2
WIPER RELAY
II1
22
1
2
M
9 EC1
Front W iper and W asher
P ower S ource
B–Y
L–W
L–W
L
L–W
L–B
L–R
W–L
W
W
W–B
W–B
W–B
W–B
L–O
L–O
L–W
L
I15
IGNITION SW
F 8
FRONT WIPER MOTOR
W 2
WASHER
MOTOR
J 7
JUNCTION
CONNECTOR
J 9
JUNCTION
CONNECTOR
F 9
FUSIBLE LINK
BLOCK
1
2
5
2 3 1 4
BATTERY
C16
FRONT WIPER AND WASHER
[COMB. SW]
2A
3
10A
DOME
2I
1
3
5
1
W
SHORT
PIN
R
IE
Cowl side
panel LH
Dash panel center
A
8 ID1
C
C
5B
8
5B
9
2 ID1
R
R
R
R
W–B
W–B
1
2
J 4
JUNCTION
CONNECTOR
J 5
JUNCTION
CONNECTOR
V
7
GARAGE
DOOR
OPENER
[VANITY
LIGHT
LH]
Garage Door
Opener

20. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
10
RX
300
2
ACC
IG1
ST1
IG2
ST2
AM1
3
4
AM2
1C
6
40A
AM1
1
1A
140A ALT
3
1C
7
15A
ECU–IG
1K
9
Instrument
panel
brace
RH
IH
3H
9
3D
9
11
IE1
1
2
IF
4
Dash
panel
center
B
B
IE1
16
From
Stop
Light
SW
<5–2>
1C
2
15A
CIG
1K
4
3A
8
3E
9
3D
1
P
OPERATION SW SELECT
SW
5
IE1
7
IE1
6
IC2
7
IC2
8
IC2
1
IJ1
2
IJ1
6
IL2
7
IL2
8
IL2
6
IE1
M
M
M
M
3E
11
3H
9
IH
Instrument
panel
brace
RH
P
ow
er
S
ource
S
hift
L
ock
R
emote
C
ontrol
M
irror
6
5
4
6
5
9
1
5
3
4
2
5
8
1
7
6
10
P
B–Y
P
P
G–W
G–W
W–B
W–B
LG–R
BR–W
W–L W W
B–R
P
W–B
L–W
W–B
L–W
W–B
BR–Y
LG–B
BR–Y
BR–W
LG
LG–R
LG–B
LG
W–B
LG
BR–Y
BR–W
LG
LG–B
LG–R
LG
W–B
P
W–L
I15
IGNITION
SW
R24
REMOTE
CONTROL
MIRROR
LH
R25
REMOTE
CONTROL
MIRROR
RH
R
5
REMOTE
CONTROL
MIRROR
SW
S
6
SHIFT
LOCK
ECU
J
7
JUNCTION
CONNECTOR
K 3
KEY INTERLOCK
SOLENOID
SHIFT LOCK
CONTROL SW
SHIFT LOCK
SOLENOID
1
2
BATTERY
LH
LH
RH
RH
RIGHT
LEFT
UP
DOWN
UP/
LEFT
DOWN/
RIGHT
STP
KLS+
E
IG
ACC
SLS+
SLS–
P2
P1
P
LG
LG
5
F
9
FUSIBLE
LINK
BLOCK

21. 2000
LEXUS
RX
300
(EWD395U)
M
3 4
2
1
11 RX 300
2
ACC
IG1
ST1
IG2
ST2
AM1 4
AM2
1C
6
40A
AM1
1A
1
1
2
140A
ALT
3
Upper the rear
axle housing left
BI
A
A
4 IA2 12 IA2
1 B 6 B
B
10
4 B
12 A
9 BA1
1 2
4 BA1
5 A
5 B
12 B
4 A
B–Y
W
D A
E B E B
9 B 3 A
4 IB1
2A
5
15A
TEL
See Radio and
Player System
<12–1><12–2>
2I
1
8 BD1
9 IK2
1E
9
15A
ECU–IG
1C
7
11 B
2 1
A
I15
IGNITION SW
R15
REAR DOOR SPEAKER LH
FromA/C ECU
[Comb. Meter ECU]<23–7>
J12
JUNCTION
CONNECTOR
F 9
FUSIBLE LINK
BLOCK
1
T10 T11
,
TELEPHONE TRANSCEIVER AND SPEAKER RELAY
A B
J 3 J 4
,
JUNCTION
CONNECTOR
B A
B–Y
B–R
B–R
B–R
B–R
O
W–B
W
W
W–L
W
B–R
G–R
G–R
B
Y
B
Y
R–W
R
W
R
W
W–B
W–B
O
O
BATTERY
5
C15
TELEPHONE
MICROPHONE
[COMB. SW]
Power Source Cellular M obile Telephone
PH+ PH–
3 6
2
C20
CELLULAR PHONE

22. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
(Cont.
next
page)
12
RX
300
*
2
:
Shielded
*
1
:
Except
NAKAMICHI
AM2
3
AM1
ST2
IG2
ST1
IG1
ACC
2
1C
6
40A AM1
1
1A
140A ALT
3
A
B
C
D
E
F
G
H
I
J
K
L
9
BA1
4
BA1
R15
REAR
DOOR
SPEAKER
LH
1
2
12
A
5
A
Y
B
Y
B
5
B
SPI+
12
B
SPI–
4
A
MUTE
1
BD1
6
BD1
9
BD1
1
A
RL+
5
A
RL–
9
C
TMUT
RR+
B
2
SP+
SP–
6
B
RR–
4
BB1
9
BB1
R16
REAR
DOOR
SPEAKER
RH
1
2
1
B
WFR+
3
B
WFR–
5
B
WF–
4
B
WF+
1
2
3
4
12
C
CDR+
2
IK1
11
C
CDR–
3
IK1
4
C
CDL+
10
IK1
10
C
CDL–
11
IK1
13
C
SGD2
4
IK1
2
C
EMUT
13
IK1
1
C
TX+
16
IK1
8
C
TX–
15
IK1
3
C
MUTE
17
IK1
8
IM1
4
A
+B
3
A
ACC
6
A
GND
8
A
FR+
7
C
R+
BM
Under
the
rear
RH
seat
A
LG LG
1
IJ1
6
16
IJ1
3
IL1
8
IL1
1
2
7
A
FR–
L L L
LG LG
L
LG
L
F13
FRONT
DOOR
SPEAKER
RH
3
4
2
9
A
FL–
10
A
FL+
9
IK1
1
IK1
2
4
3
1
1J
1
1J
3
1F
1
5
1F
8
IC1
3
IC1
2
1
F12
FRONT
DOOR
SPEAKER
LH
V
P
V
P
V
P
V
P
V
P
T 8
TWEETER LH
T 9
TWEETER RH
J15
JUNCTION
CONNECTOR
I15
IGNITION
SW
F
9
FUSIBLE
LINK
BLOCK
1
5
W
7
WOOFER
SPEAKER
7
IK1
15
C
R–
6
IK1
6
C
L+
19
IK1
14
C
L–
18
IK1
5
C
SGND
5
IK1
M
N
O
P
Q
R
14
IM1
P
W
P
W(*1)
R(*1)
G(*1)
B(*1)
(*1)(*2)
W–L(*1)
P
LG
V–W
GR
R
L
Y
B
(*2)
L–Y
W
W W
W–L
B
Y
V
B
Y
V
R
W
R
W
B
Y
L
LG
W
R
G
B
(*2)
W–L
P
LG
V–W
L–Y L–Y
W–B
(*2)
B
Y
L
R
(*2)
(*2)
B
Y
L
R
GR
GR
(*1)
(*1)
(*1)
(*1)
(*1)
(*1)
(*1)
(*1)
P
ow
er
S
ourc
e
R
adio
and
P
layer
W
R
G
B
(*2)
W–L
P
LG
(*1)
(*1)
(*1)
(*1)
(*1)
(*1)
BATTERY
,
S15
S14
A
B
,
S16
C
STEREO
COMPONENT
AMPLIFIER
IK1
8
TELEPHONE TRANSCEIVER
AND SPEAKER RELAY
B
A
T10 T11
,
20
IK1
1
2
(*1)
(*1)

23. 2000
LEXUS
RX
300
(EWD395U)
M
7 8
6
5
12 RX 300 (Cont’ d)
Radio and Player
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
6 C
EJECT
8 B
MUTE
9 B
TX– TX+
B
10 5 C
ANT
1 A
ACC
1 C
TX–
2 C
TX+
1 B
R+
5 B
R–
2 B
L+
6 B
L–
7 B
SGND
2 A
GND +B
A
4
IH Instrument panel
brace RH
1C
2
7. 5A
RADIO
NO. 2
1 1H
1K
3
9 3I 3A
13
3H
6
2I
1
20A
RAD
NO.
1
2A
3
2C
4
C
C
5B
8
5E
8
14 IJ1
3F
8
3I
7 9 3F
W
P
W(*1)
R(*1)
G(*1)
B(*1)
(*1)(*2)
W–L(*1)
P
LG
V–W
L–Y
GR
R
L
Y
B
(*2)
R
W
GR–R L–Y
W–L
BR
GR–R
P–B
P–L
GR–R
P–B
W–L
(*2)
B
G
R
W
(*2)
R–W
GR
V–W
LG
P
B
GR–R
GR
R–W
R
R
R
W–L
BR
(*2)
B
Y
L
R
P–B
GR–R
Y
B–W
BR
BR
BR
GR
P
11
7
8
6
7
5
6
10
9
10
12
5
1
6
2
7
3
4
EJCT
TX1+
TX1–
TX–
TX+
+B ACC
R+
R–
L+
L–
SGND
MUTE
TX–
TX+
TX–
TX+
C 6
CD AUTOMATIC CHANGER
I16
INSTRUMENT
CONTROL
PANEL
J 4
JUNCTION
CONNECTOR
, R 3
R 2 A B , R 4 C RADIO AND PLAYER
(*1)
(*1)
(*1)
(*1)
(*1)
(*1)
5 4
M 2
MULTI
DISPLAY
To
Auto
Antenna
Motor
and
Relay
<8–4>
SHORT
PIN
GND
* 2 : Shielded
* 1 : Except NAKAMICHI
TX1+ TX1–
10A
DOME

24. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
13
RX
300
AM2
7
20A AM2
6
BATTERY
3
AM1
ST2
IG2
ST1
IG1
ACC
2
1C
3
12
1G
2C
6
40A AM1
1C
6
7. 5A SRS–B
1K
6
2I
1
1A
1
140A ALT
F
9
FUSIBLE
LINK
BLOCK
1
2
SPIRAL
CABLE
1
2
2
1
1
2
3
3
1
2
1
2
IF
Dash
panel
center
B
B
1E
4
1L
9
16
B
1
A
2
A
6
C
C
5
10
C
12
C
7
C
9
C
9
A
7
A
12
A
10
A
1
C
2
C
A
6
5
A
8
B
7
B
9
B
10
B
18
B
B
17
10
1L
14
1D
A
A
Cowl
side
panel
RH
IG
6
B
1
II2
W–R
2
II2
5
B
11
B
12
B
15
B
1L
8
1E
11
5F
7
5C
13
5C
4
1L
2
1K
5
1E
2
1G
4
19
8
4
B
1L
1
15A SRS–ACC
7. 5A IGN
1L
6
1C
2
1C
1
3
B
1
4
12
11
5
1
2
1
2
1
2
4
4
1
2
2
P
W–G
B
W
P–B
B–Y
B–Y
B–Y
TC
AB
TC
AB
D+
D–
P+
P–
SFL+
SFL–
SFR+
SFR–
FSL
ESL
VUPL
SSL+
FSR
ESR
VUPR
SSR+
PR+
PR–
PL+
PL–
E1
E2
IG2
ACC
TC
–SL
+SL
–SR
+SR
SIL
W
W–L
W–G
W–R W–L
P
B–O
GR
B–Y
P–B
Y–R
B–Y
P–B P–B
B
W
B
W
BR–W
B–W
To Data Link
Connector 3
<2–4>
W
Y–B
Y
Y–R
Y–G
Y–R
Y–G
Y–R
Y–G
LG–B
GR–L
P–L
L–W
LG
GR
P
L–Y
Y–B
Y
Y–B
Y
W–B W–B
W–B
W–B
W–B
W–B
W–G
D
3
DATA
LINK
CONNECTOR
2
D
1
DATA
LINK
CONNECTOR
1
A13
AIRBAG
SENSOR
FRONT
LH
A14
AIRBAG
SENSOR
FRONT
RH
I15
IGNITION
SW
S10
SIDE
AIRBAG
SENSOR
LH
S11
SIDE
AIRBAG
SENSOR
RH
P14
PRETENSIONER
RH
P13
PRETENSIONER
LH
S13
SIDE
AIRBAG
SQUIB
RH
S12
SIDE
AIRBAG
SQUIB
LH
A26
AIRBAG
SQUIB
(Front
Passenger’
s
Airbag
Assembly)
A27
AIRBAG
SQUIB
(Steering
Wheel
Pad)
C14
SRS WARNING LIGHT
[COMB. METER ECU]
J 9
JUNCTION CONNECTOR
J 7
JUNCTION CONNECTOR
1
5
3
2
B
LA
B
A
,
C
8
C
7
C
,
C
9
CENTER
AIRBAG
SENSOR
ASSEMBLY
P
ow
er
S
ource
S
R
S
W
2
B
1
B
1
A
2
A
BR
SHORT CONNECTOR
B
A
S 7 S 8
,

25. 2000
LEXUS
RX
300
(EWD395U)
M
3 4
2
1
14 RX 300
1G
11 1D
13
30A
POWER
1 1A
140A
ALT
1
2
8 IA1
3 BE1
B
B
L–O
FRONT
REAR
UP
DOWN
FRONT
REAR
UP
DOWN
1
2
M
P24
POWER
SEAT
MOTOR
(Driver’
s
Seat
Slide
Control)
L–B
L
L
9 6
1
1
2
M
P20
POWER
SEAT
MOTOR
(Driver’
s
Seat
Front
Vertical
Control)
L–R
L–Y
L–Y
10 5
2
1
M
P23
POWER
SEAT
MOTOR
(Driver’
s
Seat
Reclining
Control)
Y–B
Y–R
Y–R
3 2
2
1
M
P22
POWER
SEAT
MOTOR
(Driver’
s
Seat
Rear
Vertical
Control)
Y
Y–G
Y–G
7 8
A
A
16 BE1
Under the left
center pillar
BJ FRONT
REAR
A
4
3
4
1 2
B
2
1
M
P21
POWER
SEAT
MOTOR
(Driver’
s
Seat
Lumbar
Support
Control)
L–W
L–B
L–B
FRONT
REAR
9 6
2
1
M
P26
POWER
SEAT
MOTOR
(Front
Passenger’
s
Seat
Slide
Control)
L–B
L
L
FRONT
REAR
3 2
2
1
M
P25
POWER
SEAT
MOTOR
(Front
Passenger’
s
Seat
Reclining
Control)
Y–B
Y–R
Y–R
RECLINING
SLIDE
REAR
VERTICAL
RECLINING
FRONT
VERTICAL
SLIDE
1
B
B
3 BF1
9 IM1
A
A
16 BF1
A
BM
Under the rear
RH seat
4
J18
JUNCTION
CONNECTOR
J15
JUNCTION
CONNECTOR
J18
JUNCTION
CONNECTOR
J17
JUNCTION
CONNECTOR
J17
JUNCTION
CONNECTOR
Power Seat (w/o Driving Position M emory)
P ower S ource
P15
POWER SEAT CONTROL SW(Driver’ s Seat)
P17
POWER SEAT CONTROL SW
(Driver’ s Seat Lumbar
Support Control)
P16
POWER SEAT CONTROL SW
(Front Passenger’ s Seat)
5
3
L–O
W
W
L–O
L–O
L–O
L–O
L–O
L–O
L–O
L–O
W–B
W–B
W–B
W–B
W–B
W–B
W–B
L–O
L–O
BATTERY
F 9
FUSIBLE
LINK BLOCK

26. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
(Cont.
next
page)
15
RX
300
2A
3
10A DOME
1
2I
11
1G
1D
13
1C
6
30A POWER
40A AM1
1A
1
140A ALT
1
5
2
ACC
IG1
ST1
IG2
ST2
AM1
4
AM2
FRONT
VERTICAL
UP
DOWN
REAR
FRONT
SLIDE
REAR
VERTICAL
UP
DOWN
RECLINING
REAR
FRONT
1
9
6
10
5
7
8
2
3
7
1C
15A ECU–IG
1E
9
D
A
C
A
E
B
A
B
12
BE1
4
BE1
SYSB
A
9
8
A
IG
21
A
RCLF
22
A
RCLR
18
A
LDWN
17
A
LUP
7
A
FDWN
19
A
FUP
16
A
SLDR
15
A
SLDF
Y–R
Y–B
L–O
L–W
L–R
L–Y
L–B
L
1
A
SW1
2
A
SW2
12
A
MMRY
2
BE1
6
BE1
14
BE1
3
IA2
2
IA2
10
IA2
18
IE1
17
IE1
10
IE1
B–R
R
P
P–B
LG–B
B–R
R
P
P–B
LG–B
P
P–B
LG–B
P
P–B
LG–B
2
3
1
4
W–B
NO. 1
NO. 2
SET
B–R
R
W–L
L–O
L–O
R W
W
W
13
A
SGND
14
A
SSRS
B
B
B
B
B
B
B
BI
Upper
the
rear
axle
housing
left
A
A
7
BE1
1
2
3
LG
S20
SLIDE POSITION
CONTROL SENSOR
3
A
SSFV
1
2
3
LG–R
F18
FRONT VERTICAL
POSITION CONTROL SENSOR
4
A
SSRL
1
2
3
G–B
R26
REAR VERTICAL
POSITION CONTROL SENSOR
5
A
SSRR
1
2
3
V–W
R27
RECLINING POSITION
CONTROL SENSOR
A
A
A
A
A
6
A
PVCC
4
B
SLD+
3
B
SLD–
1
2
M
L–B
L
L
P24
POWER SEAT MOTOR
(Driver’ s Seat Slide Control)
10
B
FRV+
9
B
FRV–
1
2
M
L–R
L–Y
L–Y
P20
POWER SEAT MOTOR
(Driver’ s Seat Front Vertical Control)
6
B
LFT+
5
B
LFT–
2
1
M
Y
Y–G
Y–G
P22
POWER SEAT MOTOR
(Driver’ s Seat Rear Vertical Control)
2
B
RCL+
1
B
RCL–
2
1
M
Y–B
Y–R
Y–R
P23
POWER SEAT MOTOR
(Driver’ s Seat Reclining Control)
IH
Instrument
panel
brace
RH
3H
9
3J
4
7
B
GND
10
A
MPX1
8
B
+B
D
C
E
L–O
L–O
L–O
B–Y
B–Y
V
V
V
BR
BR
BR
BR
BR
BR
BR
BR
BR
V
V
V
W–B
F
W–B
W–B
I15
IGNITION
SW
P15
POWER
SEAT
CONTROL
SW(Driver’
s
Seat)
S
5
SEAT
MEMORY
SW
J16
JUNCTION
CONNECTOR
J12
JUNCTION
CONNECTOR
J16
JUNCTION
CONNECTOR
F
9
FUSIBLE
LINK
BLOCK
7. 5A GAUGE
P
ow
er
S
eat
(w
/
D
riving
P
osition
M
emory)
P
ow
er
S
ource
SHORT PIN
BATTERY
BR BR W–B
1D
7
See
Multiplex
Communication
System
<7–24>
L–O
2
2
1
1
3
1H
2
A
B
R–L
R–L
R–L
R–L
P18
P19
,
POWER
SEAT
ECU(Driver’
s
Seat)
A
B
J
3
J
4
,
JUNCTION
CONNECTOR
B
A

27. 2000
LEXUS
RX
300
(EWD395U)
M
7 8
6
5
15 RX 300 (Cont’ d)
C
D
E
F
A
A
Under the left
center pillar
BJ
16 BE1
A
FRONT
REAR
3
4
1 2
2
1
M
P21
POWER
SEAT
MOTOR
(Driver’
s
Seat
Lumbar
Support
Control)
L–W
L–B
L–B
FRONT
REAR
9 6
2
1
M
P26
POWER
SEAT
MOTOR
(Front
Passenger’
s
Seat
Slide
Control)
L–B
L
L
FRONT
REAR
3 2
2
1
M
P25
POWER
SEAT
MOTOR
(Front
Passenger’
s
Seat
Reclining
Control)
Y–B
Y–R
Y–R
RECLINING
SLIDE
1
B
B
3 BF1
9 IM1
A
A
16 BF1
4
J18
JUNCTION
CONNECTOR
J18
JUNCTION
CONNECTOR
P17
POWER SEAT CONTROL SW
(Driver’ s Seat Lumbar
Support Control)
P16
POWER SEAT CONTROL SW
(Front Passenger’ s Seat)
L–O
L–O
L–O
L–O
W–B
W–B
W–B
8 IA1
3 BE1
B
B
L–O
L–O
L–O
W–B
B
A
L–O
L–O
L–O
L–O
W–B
W–B
W–B
J17
JUNCTION
CONNECTOR
J17
JUNCTION
CONNECTOR
Power Seat (w/ Driving P osition M emory)
B
A
E A
D B
10 BF1
4
2
A
A
16 BF1
IM1
10
BM Under the rear
RH seat
BJ Under the left
center pillar
W–B
A
10 BE1
4
2
A
A
16 BE1
R–L
R–L
R–L
R–L
G
G
W–B
W–B
W–B
W–B
W–B
W–B
G–O
G–O
J17
JUNCTION
CONNECTOR
B14
BUCKLE
SW LH
B15
BUCKLE
SW RH
J18
JUNCTION
CONNECTOR
J15
JUNCTION
CONNECTOR
T12
TENSION
REDUCER
SOLENOID
LH
T13
TENSION
REDUCER
SOLENOID
RH
J 3 ,
JUNCTION
CONNECTOR
B A
J 4
1 1
2
2
R–L
R–L
Electric Tension Reducer

28. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
16
RX
300
2
ACC
IG1
ST1
IG2
ST2
AM1
ABS
4
TC
AM2
1C
6
B–Y
1A
1
140A ALT
60A ABS
3
2
WA
5
3
2
1
2
B–Y
2
2
2
W
2
W–L
2
2
4
6
1
3
2
2
Y–R
2
7
EC1
11
A
24
A
8
C
1
C
2
C
7
C
13
A
26
A
25
A
12
A
10
A
4
B
10
B
3
B
9
B
5
B
11
B
B
6
12
B
5
A
M
A
4
2
A
1
A
22
A
9
A
23
A
4
B
12
5C
9
5C
5C
7
5C
4
5C
13
5C
8
6
IE2
EA
Engine
compartment
right
ED
Right
radiator
side
support
A
2F
4
2G
2
5
2
1
14
4
11
16
22
23
B
B
V
GR
W–B
L–Y
W–B
W
W
B
B
B
B
V
Y–G
B–W L–W
L–Y
B
A
ABS
AND
TRACTION
ACTUATOR
,
A
8
A
7
F 9
FUSIBLE LINK BLOCK
5
SFLH
SFLR
SRRH
SRRR
SFRH
SFRR
SRLH
SRLR
AST
MR
SR
D/G
TC
TS
WA
I15
IGNITION
SW
ABS
SOL
RELAY
ABS
MOTOR
RELAY
J
2
JUNCTION
CONNECTOR
D
3
DATA
LINK
CONNECTOR
2
D
1
DATA
LINK
CONNECTOR
1
W–B
W–B
BATTERY
2
W–L
V Y–R
P–B
R–B
WB
TC
TS
L–Y
L–W
(Short
Pin)
7
B
2
B
8
B
1
B
3
A
C
5
4
C
C
12
6
C
14
A
12
B
1
IE2
13
A
2
IE2
12
A
A
18
1
C
3
B
B
D
C
L–O
R–L
B–Y
L–O
L–O
13
B
5
B
6
B
14
B
15
B
20A S/ROOF
1
A
8
1H
LG–B
GR
MT
SMC2
SMC1
SRC2
SRC1
TRC+
TRC–
EFI+
EFI–
NEO
R+
WT
IND
TRC
LG–B
G
R
BR–Y
GR–L
V–W
BR–W
Y–B
B–O
R–Y
GR–R
L
G–B
B–Y
R–L
GR
P–B
R–Y
BR–W
L–O
R–L
LG–B
LG–R
LG–B
LG–R
B–Y
LG–B
B–Y
18
II1
24
II1
10
II1
C12
C14
,
COMBINATION
METER
ECU
A
C
A18
A19
,
ABS
AND
TRACTION
ECU
A
B
A20
,
C
ABS
TRAC OFF
TRAC
P
ow
er
S
ource
A
B
S
and
T
raction
C
ontrol
B–Y
(Cont.
next
page)
17
Y–R
R–B
GR
W–L
40A AM1
W–B
FromEngine Control
Module<19–4>
To Engine Control
Module<19–4>
J
7
JUNCTION
CONNECTOR
GND2
1
5D
II1
25
9
5E
B
B
Dash
panel
center
IF
10
C
W–B W–B W–B W–B
3
2A
2I
1
A
R
1
W
R
10A DOME
SHORT PIN

29. 2000
LEXUS
RX
300
(EWD395U)
M
7 8
6
5
16 RX 300 (Cont’ d)
9 B
7 IM1
1 2
19 IM1 6 IM1
1 2
18 IM1
10 B 2 B 1 B B
7 11 B
17 A 18 A 5 A 4 A 16 B
IE1
2
4 II1 3 II1
2 1
2 1
IH
Instrument panel
brace RH
3H
9
5 3J
1
4
A31
ABS SPEED SENSOR
REAR RH
A30
ABS SPEED SENSOR
REAR LH
A10
ABS SPEED SENSOR
FRONT RH
A 9
ABS SPEED SENSOR
FRONT LH
To
Combination
Meter
ECU<21–1>
From
Stop
Light
SW<5–2>
T 5
TRACTION
CUT SW
B
FR+ FR– FL+ FL– STP
GR–R
L
L–Y
L–W
Y
G–R
LG
L
LG
L
V
P
W–B
B
W–B
CSW
SP1
RL–
RL+
RR–
RR+
B
A
A18 A19
,
B
L–W
L–Y
R–B
GR–R
C
A20
, ABS AND TRACTION ECU
ABS and Traction Control
7 IE2
Y
15A
HEATER
R–W
B–R
IG1
B–Y
B
8
10 1D
15A
ECU–IG
3E
5
1 3A
13 1K
7 1C
9 C
IG Cowl side
panel RH
A
26 II1
7 II1
A
15
GND1 GND3
W–B
W–B
W–B
W–B
A J 9
JUNCTION
CONNECTOR
D
C
B
L–O
R–L
1E
9
D
D
4 ID1
1 ID1
Cowl side
panel LH
IE
A
8 ID1
L–O
W–B
W–B
L–O
B–R
B–R
B–R
W–B
W–B
W–B
P
G–Y
J 4
JUNCTION
CONNECTOR
J 5
JUNCTION
CONNECTOR
M
4
MOON
ROOF
CONTROL
SW
2 8
8 6
5 9 10 7
4
See
Multiplex
Communication
System<7–18>
M 3
MOON ROOF CONTROL ECU
M oon Roof
B–R
B–R
L–O
A
R
CLS
MPX1
B OPN
IG
E
2 ID1
5B
9
5B
8
C
C
R
R
R
R
1
B2
J 4
JUNCTION
CONNECTOR
SLIDE
OPEN/
TILT
DOWN
SLIDE
CLOSE/
TILT
UP

30. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
17
RX
300
2
ACC
IG1
ST1
IG2
ST2
AM1
ABS
4
TC
AM2
1C
6
B–Y
1A
1
140A ALT
60A ABS
3
2
WA
5
3
2
1
2
B–Y
2
2
2
W
2
W–L
2
2
4
6
1
3
2
2
Y–R
2
7
EC1
7
A
1
A
11
A
6
A
5
A
12
A
2
B
1
B
15
B
14
B
10
A
19
II1
11
II1
20
II1
12
II1
6
B
2
B
5
B
1
B
8
B
4
B
B
7
3
B
3
A
M
A
4
2
A
1
A
24
B
8
B
21
B
11
B
12
5C
9
5C
5C
7
5C
4
5C
13
5C
8
6
IE2
EA
Engine
compartment
right
ED
Right
radiator
side
support
A
2F
4
2G
2
5
2
1
14
4
11
16
22
23
B
B
V
GR
W–B
L–Y
W–B
W
W
B
B
B
B
GR
V
Y–G
B–W
V–W
L–W
L–Y
BR–W
Y–B
B–O
V–W
BR–W
Y–B
B–O
R–L
GR–L
BR–Y
R
G
B
A
ABS
ACTUATOR
,
A
6
A
5
26
F 9
FUSIBLE LINK BLOCK
SFLH
SFLR
SRRH
SRRR
SFRH
SFRR
SRLH
SRLR
MT
MR
SR
D/G
TC
TS
WA
I15
IGNITION
SW
ABS
SOL
RELAY
ABS
MOTOR
RELAY
J
2
JUNCTION
CONNECTOR
D
3
DATA
LINK
CONNECTOR
2
D
1
DATA
LINK
CONNECTOR
1
W–B
W–B
BATTERY
2
W–L
V Y–R
P–B
R–B
WB
TC
TS
L–Y
L–W
(Short
Pin)
4
II1
2
1
3
II1
8
A
2
A
2
1
3
A
9
A
7
IM1
1
2
19
IM1
10
B
23
B
6
IM1
1
2
18
IM1
22
B
9
B
25
B
IF
Dash
panel
center
5B
11
5D
1
IG
Cowl
side
panel
RH
A
12
B
B–Y
1
C
18
A
1C
7
R–W
15A
HEATER
15A
ECU–IG
1K
13
10
1D
3A
1
3E
5
13
B
5
B
4
B
B
3
2
II1
FromA/T
Indicator SW
[Park/Neutral
Position SW]
<19–5>
A
9
ABS
SPEED
SENSOR
FRONT
LH
A10
ABS
SPEED
SENSOR
FRONT
RH
A31
ABS
SPEED
SENSOR
REAR
RH
A30
ABS
SPEED
SENSOR
REAR
LH
ABS WARNING LIGHT
[COMB. METER ECU]
C
A
C12 C14
,
A21
A22
,
ABS
ECU
A
B
FromStop Light SW
<5–2>
J 9
JUNCTION
CONNECTOR
R–L
GR
B–R
G–R
R–W
G–W
B–Y
FL+
FL–
FR+
FR–
RR+
RR–
RL+
RL–
GND
GND
IG1
STP
N
P
LG
L
LG
L
V
P
GR–R
L
L–Y
L–W
W–B W–B
W–B
GR–R
L
L–Y
L–W
P
o
w
er
S
o
urc
e
A
B
S
B–Y
40A
AM1
16
B
To Combination
Meter ECU<21–1>
SP1
7
IE2
Y Y
5
B
R+
GR
GR
W–B

31. 2000
LEXUS
RX
300
(EWD395U)
M
3 4
2
1
18 RX 300
4
3 2
1
M
2
ACC
IG1
ST1
IG2
ST2
AM1
RES/ACC
4
SET/COAST
CRUISE
CANCEL
AM2
1C
6
40A
AM1
20A
STOP
1E
1
1 1A
140A
ALT
5
1C
7
7. 5A
GAUGE
1G
2
10 IH1
10
L–W
2
D
A
A
13 IH1
15A
ECU–IG
8
15A
HEATER
1E
9 1K
13
D
D
3A
1
3E
5
V–W
10 IE2
1 C
14 A 5C
4
5B
1
13
5C
12 IH1
14 II1 15 II1
IF
Dash panel center
II1
13
5E
11
5B
13
IJ1
12
From
Engine
Control
Module
<19–3>
1
3 13 14 6 10 16 15 7 2
4
4
10 4 11
9
2
4 5 12
3
2
1
5
W–L B–Y
W
Y–R L–Y
BR BR
G–R
R–L
C/C TC TC
W–L
G–B
W
W
R–L
R–L
B–R
B–R
G–R
G–R
R–Y
R–Y
Y–G
B–Y
L
L–B
L–R
BR
BR
L–W
G–W
V–W
L–Y
W
P–B
W
W
W
R–W
G–B
P–B
L–W
L–R
L–B
BR
G–B
G–W
G–W
C 5
CRUISE CONTROL
ACTUATOR
S 9
STOP
LIGHT
SW
D 3
DATA LINK
CONNECTOR 2 D 1
DATA LINK
CONNECTOR 1
P 1
PARK/NEUTRAL
POSITION SW
J 4
JUNCTION
CONNECTOR
I15
IGNITION SW
C15
CRUISE CONTROL
SW[COMB. SW]
3
CRUISE
CONTROL
INDICATOR
LIGHT
[COMB.
METER
ECU]
C
A
C12
C14
,
To
Combination
Meter
ECU<21–2>
J 8
JUNCTION
CONNECTOR
Power Source Cruise Control
C18
CRUISE CONTROL ECU
BATTERY
GND
STP
MC
MO
GND
CCS
L
ECT
OD
MC
IDL
D
B
MO
PI
CCS
TC SPD L
ECC
II1
21
BR
F 9
FUSIBLE LINK
BLOCK
EC
Rear side of
surge tank
8 IH1
A
A
3
E1
BR–W
BR–W
BR–W
J10
JUNCTION
CONNECTOR
BR

32. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
(Cont.
next
page)
19
RX
300
2
ACC
IG1
ST1
IG2
ST2
AM1
140A ALT
4
6
7
AM2
B
1C
1
2
3
5
D
16
R–Y
A
S4
L–W
B–W
B–Y
J 4
JUNCTION
CONNECTOR
A
(*1)
2B
4
2B
5
2F
4 R–Y
Y–G
B–Y
L–W
1G
6
+B
8
1C
1
FromStop Light SW
<5–2>
7
2B
A
1
D
E
2
D
15
D
SLT–
G
A
W–B
3
NEO
16
W–B
ED
EB
3
1
B
E05
E03
31
C
BR
E1
20
C
19
C
9
C
8
C
1
BR
BR
18
B
BR
3
A
13
B
23
C
24
C
B–Y
2
1
Rear
side
of
surge
tank
17
21
E01
W–B
E
C
7
R–L
C
DSL
21
To Cruise Control ECU
<18–2>
6
B–Y
B L–O
P–B
R–Y
G–O
B–O
6
B–Y
TRC+
TRC–
ENG+
W
W
GR
W–L
IDLO
G–B
R–W
R–B
L–W
L–B
E
1
ELECTRONICALLY
CONTROLLED
TRANSMISSION
SOLENOID
2
1
A
7.
5A
IGN
EFI RELAY
BATT
IGSW
STP
E04
W–B
E02
SL1+
SL1–
SL2+
SL2–
R–Y
THO
SLT+
E2
F
9
FUSIBLE
LINK
BLOCK
BATTERY
Surge
tank
RH
Right
radiator
side
support
W
B
8
9
W–B
4
W–B
10
5
D
A
2
A
NC–
NC+
G–Y
B–O
R
G
C 3
COUNTER GEAR SPEED SENSOR
W–B
BR
20
D
7
ENG–
D
BR–W
P
ow
er
S
ourc
e
E
lectronically
C
ontrolled
T
rans
miss
ion
and
A
/T
Indicator
*
1
:
w/
Traction
Control
14
D
ENGINE
CONTROL
MODULE
A
24
13
E
6
,
OD1
W
B
Y
BR
R
G
O
O
G
O
E
5
A
B
E
7
,
C
E
8
,
D
E
9
,
E
To ABS and Traction
ECU<16–3><16–4>
FromABS and Traction
ECU<16–4>
C
4
30
W–B W–B
25
J10
JUNCTION
CONNECTOR
E
W–B
B
5
A
2
1
NT–
NT+
L
LG
T 3
TURBINE SPEED SENSOR
EC
1A
1
40A AM1
I15
IGNITION
SW
2I
1
2C
6
3
1C
12
1G
W–B
MREL
8
B–W
D
(*1)
(*1)
(*1)
(*1)
20A AM2
20A EFI
W–R
1
2
W–L
W–L
5
1
S4
DSL
SL1+
SL1–
SL2+
SL2–
THO
SLT+
SLT–
A
J
2
JUNCTION
CONNECTOR
E2

33. 2000
LEXUS
RX
300
(EWD395U)
M
7 8
6
5
19 RX 300 (Cont’ d)
7 8 9 10 3 4
2
IH1
14
IH1
15
L–R
R–B
R–W
G–R
P
1
A/T
INDICATOR
SW
[PARK/NEUTRAL
POSITION
SW]
E lectronically Controlled Transmission and A/T Indicator
B–Y
1C
7
1K
13
1G
2
A
9 A
8 A
7 A
16
10 IH1
3D 3H
G–Y
G–W
8
D
D
A
D 2
D
L
D
ODLP
18 D
6
3
1
4
D
11 A
N
Y
Y
W–R
W–B
W–B
Y–B
20 D
C
MPX2
A
13
3
A
14
PWR
NORM
SNOW
B–Y
8 9
9
15A
HEATER
R–L
R–L
R–W
2
STA
D
See Engine Control and
Engine Immobiliser System
<2–10><2–11>
THW
B
VTA1
23
B
VC
MPX1
14 B 7
R–L
Y–B
8
R–W
G–W
R
3H
MPX2
See Multiplex Communication
System<7–15>
PWR
SNOW
15
E
4
ELECTRONICALLY
CONTROLLED
TRANSMISSION
PATTERN
SELECT
SW
A
GR–L
O
2
O/D
MAIN
SW
B
W–B
C14
COMBINATION METER ECU
D
N
R
L
2
3E
5
3A
1
R–L
O/D
OFF
ECT
PWR
B
P
ENGINE CONTROL MODULE
, E 6
E 5 A B , E 7 C , E 8 D , E 9 E
R–W
G–W
D A
C
6
B
R–W
R–W
3E
10
22
ECT
SNOW
IH Instrument panel
brace RH
W–B
W–B
* 2 : w/o Traction Control
(*2)
P
G–W
G–R
R–W
J
8
JUNCTION
CONNECTOR
R–B
To ABS ECU
<17–4>
(*2)
(*2)
(*2)
7. 5A
GAUGE
1
B 5 B 8
,
BODY ECU
A D
LL
2L
DL
NL
RL
PL
C
12 A
ODMS
7 IH1
IJ1
11
IJ1
15
R–W
GR–L
GR–L

34. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
20
RX
300
3
1A
1
20A FR DEF
15A SEAT HTR
40A AM1
8
1F
1F
3
1C
6
AM2
4
AM1
ST2
IG2
ST1
IG1
ACC
2
BN
Back
panel
center
A
1
A
1
B
2
BC1
7
IB1
2C
1
2
1
3
5
4
2C
3
2A
7
2A
8
2H
2
1G
8
7. 5A GAUGE
1C
7
15A HEATER
1
5
1
3
1
1
1
2
IG
Cowl
side
panel
RH
A
12
IL1
12
IC1
8
7
8
7
3
IL2
3
IC2
IF
Under
the
rear
RH
seat
BM
A
16
BF1
A
A
2
1
11
BF1
1
IK2
4
IJ1
IG
Cowl
side
panel
RH
A
1
2
11
BE1
8
IE1
1
IA2
13
IJ1
IE1
9
5
3
1
2
1
1
1
J18
JUNCTION
CONNECTOR
1
5B
11
5F
1
IH
J15
JUNCTION
CONNECTOR
BJ
Under
the
left
center
pillar
1H
5
16
BE1
3K
6
9
3H
A
A
A
IE
Cowl
side
panel
LH
W–B
2
3
2
3
6
1
5
1
2
A
B–Y
L–B
GR
B
R–Y
B
BR–Y
B
B
R
LG
W–B
W–B
W
B
L–B
GR
W–L
R–Y R–Y
B B B
BR–Y
W–B
W–B W–B
BR–Y
B R–W
B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
W–B
LG LG LG
G–B
G–B
G–B
G–R
G–R G–R G–R W–B W–B W–B
W–B
W–B W–B
G–B
G–W
L–B
W
I15
IGNITION
SW
RR
DEF
RELAY
J14
JUNCTION
CONNECTOR
ENGINE
MAIN
RELAY
S19
SEAT HEATER
(Front Passenger’ s
Seat)
J
9
JUNCTION
CONNECTOR
S18
SEAT HEATER
(Driver’ s Seat)
J17
JUNCTION
CONNECTOR
S
3
SEAT
HEATER
RELAY
MIRROR
HEATER
RELAY
S21
SEAT
HEATER
SW
(Driver’
s
Seat)
R25
MIRROR HEATER RH
[REMOTE CONTROL
MIRROR RH]
R24
MIRROR HEATER LH
[REMOTE CONTROL
MIRROR LH]
J
9
JUNCTION
CONNECTOR
J
5
JUNCTION
CONNECTOR
8
R21 R22
,
REAR WINDOW
DEFOGGER
A B
30A
RR
DEF
140A
ALT
BATTERY
To Body ECU
<7–14>
R
P
ow
er
S
ource
M
irror
H
eater
a
nd
W
indow
D
efo
gger
S
eat
H
eater
G–R
E
BR–Y
9
IJ1
IG
LH
5
F
9
FUSIBLE
LINK
BLOCK
1
N 2
NOISE FILTER
(DEF)
B
Dash
panel
center
2
F
7
FRONT
WINDOW
DEFOGGER
3
B
1
W–B
W
B
B
W
B
B
W–B
5A
6
5A
1
3
5E
10
1K
Instrument
panel
brace
RH
3A
10
3D
2
3K
7
W–B
2
E
R–B
6
RH
3
IG
R–B
G–W
S22
SEAT
HEATER
SW(Front
Passenger’
s
Seat)

35. 2000
LEXUS
RX
300
(EWD395U)
M
3 4
2
1
21 RX 300
FUEL
WATER
TEMP.
MALFUNCTION
INDICATOR
LAMP
O/D
OFF
TRAC
TACHOMETER
ABS
TRAC
OFF
SPEEDOMETER
1 C A
11 10 A 8 C 9 C
See Multiplex
Communication System
<7–15>
14 C
OPEN
DOOR
3 C
6 C 16 A 12 A A
13 18 A 19 C 20 C
17 A 17 C 21 C 18 C 10 C 11 C
22 C
TURN
LH
IH Instrument
panel brace RH
BUZZER
REAR
LIGHTS
SEAT
BELT
OIL
A/T
OIL
TEMP.
BRAKE
P
R
N
D
2
L
FUEL
ECT
PWR
ECT
SNOW
CRUISE
3
1A
1
1C
6
2
ACC
IG1
ST1
IG2
ST2
AM1
W–L
AM2
2I
1
4 2A
1G
10
1K
1
2 B
5 IJ1
II1
16
1
2
EA
A
Engine compartment
right
L–W
L–W
L–W
L–W
W–B
J 1
JUNCTION
CONNECTOR
W
1
WASHER
LEVEL
WARNING
SW
ODO/TRIP
15 C
10 IK2
2 BD1
7 BD1
3E
10 3B
12
3B
6
3H
9 3K
2
TURN
RH
SRS
HIGH
BEAM
14 A
7 B 6 B 14 B 10 B
F16
FUEL
SENDER(Main)
F17
FUEL
SENDER(Sub)
See Illumination
System<4–3>
3
1
2
2
Y–G
Y–G
Y–G
Y–B
BR
W–B
BR
W–B
Y–B
BR
15 A
From
ABS
and
Traction
ECU(*1)<16–6>
From
ABS
ECU(*2)<17–4>
From
Engine
Control
Module<2–12>
Y
See
Multiplex
Communication
System
<7–15>
See
Taillight
System<3–4>
See
Stop
Light
System<5–3>
See
Electronically
Controlled
Transmission
and
A/T
Indicator
System<19–7>
See
Engine
Control
System
<2–3>
See
Cruise
Control
System<18–2>
See
ABS
and
Traction
Control
System(*1)<16–4>
See
ABS
System(*2)<17–3>
See
ABS
and
Traction
Control
System<16–4>
140A
ALT
W
W
W
W–L
W–L
W–R
7.
5A
ECU–B
SHORT
PIN
40A
AM1
3E
5
3A
1
13 1K
15A
HEATER
1C
7
4
R–L
R–W
B–Y
B–Y
See
SRS
System<13–3>
See
Multiplex
Communication
System
<7–15>
See
Turn
Signal
and
Hazard
Warning
System
<6–2>
See
SRS
System<13–3>
See
Multiplex
Communication
System
<7–15>
I15
IGNITION
SW
2
1
IK2
11
BR
F 9
FUSIBLE
LINK BLOCK
5 1
BATTERY
V–W
O
C12 C13
,
COMBINATION METER ECU
A B C14
, C
* 2 : w/o Traction Control
* 1 : w/ Traction Control
From
Engine
Control
Module<2–9>
From
Cruise
Control
ECU<18–4>
CHARGE
TAIL
HEAD
(USA)
Combination M eter
P ower S ource

36. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
22
RX
300
2
ACC
IG1
ST1
IG2
ST2
AM1
W
4
AM2
1C
6
40A
AM1
1A
1
7
5
140A ALT
40A CDS
40A RDI
3
5
2
1
2
2
2
2
1
EB1
II1
8
1
2
M
2
1
1
3
5
1
2
4
2
2
2
2
2
2G
3
8
2G
2B
3
2E
2
2
3
1
2
ED
Right
radiator
side
support
3
4
2
1
2
2
2
2
1
2
M
Cowl
side
panel
LH
IE
A
4
IL2
1
IL2
4
IC2
1
IC2
5
ID1
ID1
6
ID1
4
D
D
1E
9
1G
8
1C
7
3
4
2E
2G
6
2G
7
2A
8
EA
Engine
compartment
right
A
A
1
2
3
4
1
2
1
1
2
2
B–Y
B–Y
R–Y
G–Y
G–B
R–W
B
R–W
W–B
W–B
W–B
W–B
W–B
R–L
W
L
W–R
W
W–L
R–L
W–R
R–L R–L
L
R–L
Y
Y
L–B
L–Y LG–B
Y
W–B
W–B
W–B
L–Y
R–W
W–B
W–B
W–B
R–L
R–Y
B–R B–R B–R
G–Y
G–B
W–B W–B
G–B
G–Y
G–B
G–Y
G–Y
G–B
B B
R–L
FAN
NO.
3
RELAY
FAN
NO.
1
RELAY
J
1
JUNCTION
CONNECTOR
J
5
JUNCTION
CONNECTOR
J
4
JUNCTION
CONNECTOR
I17
INNER
MIRROR
FAN
NO.
2
RELAY
W
4
WATER
TEMP.
SW
NO.
2
J
2
JUNCTION
CONNECTOR
D
5
DIODE
(A/C)
R 1
RADIATOR
FAN MOTOR
W 3
WATER TEMP.
SW NO. 1
A 4
A/C SINGLE
PRESSURE SW
A 2
A/C CONDENSER
FAN MOTOR
R24
REMOTE
CONTROL
MIRROR
LH
R25
REMOTE
CONTROL
MIRROR
RH
I15
IGNITION
SW
BATTERY
W
To Engine Control
Module<2–12>
To Engine Control
Module<23–3>
P
ow
er
S
ource
R
adiator
F
an
and
C
ondenser
F
an
A
utomatic
G
lare–
R
esis
tant
E
C
M
irror
F
9
FUSIBLE
LINK
BLOCK
6
15A HEATER
15A ECU–IG
EC+
EC–
GND
IG
R–W
8
ID1
5A
6
5A
1

37. 2000 LEXUS RX 300 (EWD395U)
MEMO

38. 2000 LEXUS RX 300 (EWD395U)
M OVERALL ELECTRICAL WIRING DIAGRAM
3
4
2
1
23
RX
300
2I
1
1A
1
2A
4
2A
3
40A AM1
1C
6
2
ACC
IG1
ST1
IG2
ST2
AM1
3
4
140A ALT
I15
IGNITION
SW
To Body ECU<7–14>
B
2
BLOWER
MOTOR
AM2
4
3
5
1
2
Cowl
side
panel
RH
IG
2C
5
2H
3
3
A
1
A
1
B
2
B
M
2
1
3
IG1
IG1
2
1C
7
15A
HEATER
7.
5A
GAUGE
1G
8
1K
13
8
2A
5
3
1
2
2C
2
2E
3
6
E
2
E
Right
radiator
side
support
ED
4
1
16
EC1
3
EB1
10
A
EC
Rear
side
of
surge
tank
2
A
1
IG1
1K
10
3B
5
3A
10
5B
8
5E
8
2
1C
7. 5A RADIO NO. 2
1K
3
3A
13
3I
11
10
3I
10
1G
1K
2
1K
1
3H
9
IH
A 3
A/C MAGNETIC CLUTCH
AND LOCK SENSOR
Instrument
panel
brace
RH
3B
3
3E
10
3I
6
10
IJ1
18
D
11
D
13
12
9
7
11
C
1
2
A
A
A
A
1
3
3
2
1
C
A
A
B
C
D
E
F
G
H
I
W
W
W
L–B
W–B
W–B
R
B
W–B
BR
B–Y
W–L
R–Y
P–L P–L
L–R
R–Y
R–Y
R R
W–R
W–L
LG–B
R–L
GR
W–B W–B
R
R
W–R
P
W–B
B
L–B
W–B
B–Y
P
R
R–W
P–L
GR
W–L
W–B
W–B
Y
B–W
GR–R
R–B
R–W
R–Y
R–B
P–L
BR
BR
R
W–L
G–R
L–O
P
ow
er
S
ourc
e
A
utomatic
A
ir
C
onditioning
J 4
JUNCTION
CONNECTOR
7. 5A ECU–B
10A DOME
50A HEATER
2
J
9
JUNCTION
CONNECTOR
H
8
HEATER
RELAY
L–R
R–Y
B–Y
W–L
J10
JUNCTION
CONNECTOR
J
2
JUNCTION
CONNECTOR
A 4
A/C DUAL PRESSURE SW
See
Multiplex
Communication
System<7–18>
MG
CLT
RELAY
See
Multiplex
Communication
System<7–15>
I16
INSTRUMENT
CONTROL
PANEL
(Cont.
next
page)
SHORT PIN
BATTERY
GND
M+
M–
+B
SI
PRE
MPX1
MPX2
BLOWER MOTOR
CONTROL RELAY
B
A
B 3 B 4
,
ACMG
LCKI
10
4
3
9
5
1
F
9
FUSIBLE
LINK
BLOCK
LG–B
From Diode
(A/C)<22–2>
E
5
E
8
,
ENGINE
CONTROL
MODULE
A
D
E
9
,
E
MPX+
MPX–
GND
TX+
TX–
IG+
ACC
+B
5A
2
5A
1
6
5A

39. 2000
LEXUS
RX
300
(EWD395U)
M
7 8
6
5
A utomatic Air Conditioning
23 RX 300 (Cont’ d)
IJ1
14
3F
9
3D
3
7 3F
14 C
1 C
4 C
C
3
22 C
3A
1
3E
5
7 C
IJ1
7 8 IJ1
11 EC1 17 EC1
2
1
16 C 3 B 9 B
2
1
M
12 B
13 B
8 B
11 B
1 B
M M
1 A 9 A
2
1
4 IF1 IF1
6 2 IF1
3 A
1 IF1
10 IF1
3 IF1
9 IF1
8 IF1
7 IF1
A
4 5 A A
2 6 A 7 A 8 A
C
21 C
17 16 B B
15
A
B
C
D
E
F
G
H
I
4 5 8
3 5 1 7 6 1 5 3 6 7 1 5 3 7 6
1
3 1
2
L
Y–B
B–R
W–R
G–R
G–W
B–W
GR
V–W
BR–W
R
G–Y
B–Y
LG–R
LG–B
W
G–B
O
Y–G
Y
B–Y
LG–R
G–B
LG–B
W
G–B
B
B–Y
Y–G
Y
G–B
B–Y
B–Y
See Multiplex Communication
System<7–15>
B–Y
W–R
B–R
R–L
P–L
W–L
W–B
W–B
B–W
R
R–W
R
W–R
B–R
W–B
W–B
B–W
Y
GR
W–L
P–L
R–W
LG–R
R
G–Y
B–R
R
G–R G–Y
BR–W
B–Y B–Y
V–W
R
A17
A/C SOLAR SENSOR
A23
AIR INLET CONTROL SERVO MOTOR
A25
AIR VENT MODE CONTROL SERVO MOTOR
A24
AIR MIX CONTROL SERVO MOTOR
M
2
MULTI
DISPLAY
A
1
A/C
AMBIENT
TEMP.
SENSOR
A16
A/C
ROOM
TEMP.
SENSOR
A15
A/C
EVAPORATOR
TEMP.
SENSOR
G–B
GR
R
R
B–W
TS
S5–3
MPX–
MPX+
E2
B BLW IG B2 TAM SG–5 TR SG–3 SG–2 TPI S5–2 AIF AIR TE SG–1
TELI
TPO
O
AOD AOF S5–1
C
5
TP
To Telephone Transceiver and
Speaker Relay<11–4>
AMH AMC
, C13
C12 A B , C14 C A/C ECU[COMB. METER ECU]
TX– TX+ GND1
ACC +B1