Page 2313 of 2572
2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
34
2 1
(
Cont. next page)
30 HIGHLANDER
Navigation System
11 A 10 A
IG ACC
12 B 11 B
IBRight I nst rument
Panel Brace
W- B
LG
8
14 7 5 12TX3+ TX3- GTX- GT X+ CG GND BATT
L
BR
Power Source
2ACC
IG1
ST1 AM1 4
FL MAIN
3. 0W
Bat tery
W SB
9 ACC
B2IG3F 9
3F 8A
B GR
W
11 4
MPD1 MPD2
Multiplex Communic at ion
Syst em (
BEAN Bus)
<20- 4>
3
140A ALT
13 40A
AM1
1 21C 6
1A 1WB
3G 63G5
3F 13W- B W- B
7. 5A
IG110A
ECU- IG7. 5A
RAD NO. 2
10A
DOME1C 71C2
1K 10 1K91J6
3A 10
3I 1
GR B
L
G
L
G
1K 3
3A 8
3D 1
WSB
3I 10 3A 13
3E 3GR BR
V
V
3A 1
3G 7
R R
V
2A 3 D. C. C
12 IK34H 64D 11 11 IL2
3I 7
7. 5A CRT
1 2
A 12
+B1 16 IK2
A A
V
6IL1
W VV V
W VVV V LGLGWO
22
22I1I15
F 7G 5
J17
M 3(
A)
, M 4(
B)
, M 5(
C)
Fusible Link BlockGateway ECU Ignition SW
Junction
Connec tor
Multi- Display
Page 2314 of 2572

2005 HIGHLANDER (EWD592U)
M
78
6 5
30 HIGHLANDER (
Cont' d)
Navigation System
4A 5A
TX1+ TX1-
13 BTX+
14 BTX-
LGO
Rear Seat
Entertainment
ECU< 29- 13>
24 B 25 B
RG 5B
SBTX+
10 B
BRTX-
2B
WR
7B
RG
3BB
1BVR
8BSYNC
6BVG
5ASPD
O
2A 11AAUO+ AUO-
GB* 3 : Shielded
1A 10AAUI- AUI+
LGR
17 AGND1
3AGND1
IBRight Ins trument
Panel Br ace
Combination Meter
< 31- 4>
8 A 25 A 21 A 16 AHAZ SPD PBEW PKB
R LGY
7ATC
PO
LG
W
9A+B
18 AACC
GRWTweet er LH
< 29- 2>
A
BGR
W
Data Link
Connec tor 3
<2- 12>
Turn Signal
Flasher< 8- 3> Par king Br ak e SW
<15- 5>
Combination Meter
<31- 4>
4CSGD1
RRG G
NT SC
C 1
(
*3) (
*3)SGND
C 5
IP1 13 IP1 12 2IP1
Rear Seat Enter tainment
ECU< 29- 9>B B23
SYNC28 BB 27
VG BVR 26
GB Y (
*3)1IP1 11IP1
BRY
3I 63I2
3F 13
W- B
W- B W- B W- B
(
*2) (
*2)(
*2)
(
*2)
* 2 : w/ Rear Seat Enter tainment Sy st em
St er eo Power Amplif ier
< 29- 2>
(
*2)(
*2)Body ECU
<10- 7>
11 1D31J
GR
3IF3 4IF3
O
LG (
*2) (
*2)(
*2)
(
*2) (
*4)
(
*4)Radio and Player
<29- 11> Radio and Player
<29- 11>
* 4 : w/o Rear Seat Entert ainment Sys tem
14 ARL
A/T Indicator SW
<13- 3> Y3K 13
3C 1
11 IF3GGR
M 3(
A)
, M 4(
B)
, M 5(
C)N 3(
A)
, N 4(
B)
Multi- DisplayNav igat ion ECU
Page 2315 of 2572
2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
31 HIGHLANDER(
Cont. next page)
C om bin ation M ete r Power Source
2
7ACC
IG1
IG2
ST2 AM1 4
6 AM2
1A 11C 6W
FL MAIN
3. 0W
Bat tery10
W2
140A ALT30A AM2
11IC1
2I 1
3
10A HEATER
1C 7
1K 13
Engine Cont rol Module
<2- 18><3- 13> VSC and Tir e Press ure
War ning Sy st em< 15- 10>
5IC3
1G 10
1K 1
10A
DOME
2A 42A33F 9
3D 3 11 IL2
4H 64D 11
12 IK3
BL- YW
D. C. C
7. 5A
ECU- B
W- L10A
IGN1C 1
1G 6
R
Y
G
GRW- L V
V
R
LG
BR
P LGV
B
W
40A
AM1
O
3J 9W
P
4M 44E 1 ST1
P
7
3C 4
3A B
1 2
7V 5V
B 6 B 1B 13A 12 A 2 A 1 A 7Illuminat ion Lights
<11- 4>
Rheostat
SpeedometerTachometer
LCD
Fu el Water Temp.
22 A
6
3F
1
3B
12
3KW
Y
OMulti- Display
<30- 5>
Engine Cont rol
Module<2- 16><3- 6>
Navigation ECU
<30- 7>A
B P
W- B 3E 10
13 3F
W- B W- B
B
F 7I15
C11(
A)
, C12(
B)
Combination Meter
Fusible Link BlockIgnition SW
Page 2316 of 2572
2005 HIGHLANDER (EWD592U)
M
5
678
31 HIGHLANDER (
Cont' d)(
Cont. next page)
2IR2
5BH111 IR2
3K 23B 6
IBRight I nst rument
Panel Brace
OOPY
V
BR
10 IF2
8IC3
EARight Fr ont
Fender Apron A2 1
BR P Y- B
Y- B
W- B Engine Control
Sys tem< 2- 4> < 3- 4>
VSC and Tir e Pres sure
Warning System< 15- 9>
Combination Meter
A A14 BH1
D D
P23
O
O
13 A
B 7 A 17 11 B 10 B 4B 12 B 9A
VSC
ABS
Brake
Malfunction
Indicator Lamp
Washer Level CRUISE
Oil Pressure
Char ge
ECT SNOW
Fue l
L
2
D
N
R
P
Do or
Buzzer 3 O/ D OF F A/T
OIL TEMP
Air bag
Driver ' s
Seat BeltSlip MAINT REQDTi r e Ai r
Pressure
(
USA)(
US A)
E E P
9IL1PSB
A
W- B
B
P
W- B
TRAC OFF (
2WD)(
2WD)
* 1 : 3MZ- FE
(
*1)(
*1)
3B 1211 AR
F12J 3
W 1
J13
C11(
A)
, C12(
B)
J 6
Combinat ion Meter
Fuel SenderJunction
Connector
Junct ion
Connect or
Junct ion
Connect or Washer Level
Se nso r
Page 2317 of 2572
2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
9
101112
31 HIGHLANDER (
Cont' d)
Combination M eter
9B 21A
Multiplex Communication
Sy st e m (
BEAN Bus)
<20- 4>
B 16 14 A 15 A
19 A
Tu rn RH
Tur n L H
Be am Tur n Signal and
Haz ar d Warning Light
System< 8- 2>
Headlight System
<5- 3><6- 2>Headlight System
<5- 3><6- 2>
C11(
A)
, C12(
B)
Combination Meter
Page 2318 of 2572
2005 HIGHLANDER (EWD592U)
M
34
2 1
32 HIGHLANDER
1C 6
40A
AM1
1A 1
42140A ALT
30A CDS
30A RDI
1 2
5 322
2 2
1 2
M2 1
5 3
4 22
22 2
2G 382G
2E 2
2 3
EBRight Fr ont
Fender Apron2 1
5 3 22
22
1 2
M1G 81C 7
142E2G 6 2G 7
2A 8
A 1 2GG
B- R
B- Y B- R
L- Y
Y WB WB- R
W B- RY
B- R
R- L
L- RW- B R- Y
R- Y W- B B- RY
B- Y B- Y
FAN NO. 3
RelayFAN
NO. 1
Relay FAN
NO. 2
Re l ay
Battery
W
Power Source
R adiator Fan and Condenser Fan (
3M Z- FE)
6
10 A HEAT ER
FL MAIN
3. 0W
EGUnder the Left
Headlight
W- B
A A
7IK2
B- R
B- R
R- L
L- YEngine Control
Module< 2- 7>
1 2
12 1
R- L
MG CLT Relay
<34- 8><35- 8> Y- G
2ACC
IG1 AM1 4
L- W
L- Y
2 EB2
EH Under the Left
He ad li g htA 2G 2
2F 4
R- YW- B
5 EB22B 3
R- Y R- Y
A W- B
W- B
F 7I15
D 2
C 5W 4
J 2 J 4
R 1
W 3
A 3
Single
J 5
Pressure SW
Condens er Fan Mot or
Di od e
(
Cooling Fan) Fus ible Link Bloc kI gnit ion SW
Junc tion
Connec torJunction
ConnectorJ unc tion
Connec tor
Radiator Fan Mot or
Water Temp. SW No. 1
Water Temp. SW No. 2
Page 2319 of 2572
2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
34
2 1
33 HIGHLANDER
1C 6
40A
AM1
1A 1
42140A ALT
30A CDS
30A RDI
1 2
5 322
2 2
1 2
M2 1
5 3
4 22
22 2
2G 282G
2F 4
2 3
EH2 1
5 3 22
22
1 2
M1G 81C 7
12G 6 2G 7
2A 8
A 1 2GG
B- R
B- Y B- R
L- Y
Y WB WB- R
W B- RY
B- R
R- L
L- R W- B
W- B R- Y W- B B- RY
B- Y B- Y
FAN NO. 3
RelayFAN
NO. 1
Re la y FAN
NO. 2
Relay
Battery
W
Power Source
R adiator Fan and Condenser Fan (
2AZ- FE)
6
10 A HEAT ER
FL MAIN
3. 0W
EG Under the Left
He ad li g ht
W- B
A A
7IK2
B- R
B- R
R- W
L- Y R- Y
2ACC
IG1 AM1 4
Engine Cont rol Module
<3- 8> L- W
Engine Contr ol Module
<3- 8>
L- Y
2G 3
2E 2
AR- YW- B
2B 3R- Y
ST 1
5EB2 2 EB2
F 7I15
Si n gl e
A 3J 2 R 1
J 5
C 5Pr es su re SW
Condens er Fan Mot or
Fusible Link BlockI gnit ion SW
J unc tion
Connec tor
J unc tion
Connec tor
Radiator Fan Mot or
Under the Left
Headlight
Page 2320 of 2572
2005 HIGHLANDER (EWD592U)
MEMO