TOYOTA HIGHLANDER 2001 Service Repair Manual

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
12 HIGHLANDER
20A
FR FOG10A
TAIL2 1
3 5
2 1
5 3
1B 71J21J 4 1A 1
40A
AM12ACC
IG1 AM13
4
1C 6
2 1
5 3 40A
MAIN
7. 5A ECU- B
7. 5A
RAD
NO. 2 7. 5A
IG11C 71C22I 1
32A 4 1K 10 1J6
3C 6 3B 5
1H 6 3A 10 3A8
1G 105IC3
17 A 5 A 12 A 20 A 21 A
4IK3
12 13 14 8 1116 B 17 B 18 B 15 B 10 B
W
GR BRB G WRL- R W- L
BROV LGP
IALeft Cowl Side PanelW- B169D 6A11 C
G BR
GL
V
WB
WB
W Taillight
System< 7- 1> Headlight System
<5- 3>
1 2
1 2R- W W- BW- B R- W
R- WEA Right Fr ont Fender ApronA
EGUnder the Left Headlight A V L
GW
FFGO FFOG HF TAIL HEAD A DCTY BECUCLTS CL TE CLTB ACC IG
DRL NO. 2 Re la y D. C. C
Bat tery 1 32
FL MAIN
3. 0W
140A ALT
TAILLIGHT
Relay
FOG LIGHT
Re l ay 2 11
2
CLTB CLTE CLTS
134
17 10
L Fog
Light SW
Light
Co nt r ol S W
Dimmer
SWOFF
ON
OFF
Tail
He ad
Au t o
Low
Hi g h
Flash
Power Source Front Fog Light Automatic Light Control
Interior Light System
< 10- 6>
HRL Y
3CR
33 3 2G 4R- B R- BR- BG
R
TRLYA 7Taillight System
<7- 1>
LF G BF G HU HL HF T H E L A ST 1
F 7
J 1 J 3F 2
F 1
C13A23 I15
B 9(
A)
, B10(
B)
, B11(
C)
, B12(
D) Aut omatic Light Contr ol Sens or
Bo dy ECU
Combinat ion SW
Front Fog Light LH Front Fog Light RH
Fus ible Link Bloc k
I gnit ion SW
Junct ion
Connect or Junct ion
Connect or

2005 HIGHLANDER (EWD592U)
MEMO

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
13 HIGHLANDER(
Cont. next page)
2ACC
IG1
IG2
ST2 AM1 4
6 7AM2
40A AM1
1C 6
1A 12
1
2140A ALT1W 30A AM2
10 3
FL MAIN
3. 0W
Batt ery 1IC12I 12 1
3 5
2F 42B4 2B 52B7
20A EFI NO. 1EF 1 Rel ay
1C 1
1G 6
10A IGN
1C 7
7. 5A IG1
1G 2
4E 14M 4
W
11 IK2 10 IK2
EH Under the Left
HeadlightA
B- W
W
2A
+B2
A3A
BATT
BR
W
19 B
STP
BRP R
10 I M1
R G
GR G
GR
WYW
L- Y
B W- B
P- LW- B B
10 D
L- W13 D
Y- R12 D
Y- B11 D
Y- G15 D
L- Y14 D
L- R19 D
R- B18 D
B- W32 D
G- Y
3 2 810 512 613 128 E
BR
A7D
W- BED 1C
BR
6D
W- B7C
W- B
EC 6EW- B7E
W- B
W- B W- B
6 197382
PL RL NL DL 2L LLL- Y R- B Y- R L- W
6A
V
11 B
L
7A
GR
10 B
Y
20 B
P
9B
G
Power Source Electronically Controlled Transmission and A/T Indicator (
3M Z- FE)
8MREL S4 SLT+ SLT- DSL SL2+ SL2- SL1+ SL1- THO1 E2 E04E1 E0 5 E0 3 E0 2 E0 1 P RND3 2 IK3 13
B St op Light SW
<9- 2>
7
Y G GRSB LG BRWB O O
E E
9A
IGSWP
9IM1 IM120 19 IM1 IM1818IM1IM17
G Y- G
V
B
BC
GRCB
GB
G
B
17 D
G- B16 D
G- R
411 SL 3+ SL3 -4K 54A 6
L
GR
4K 13Navigation ECU
<30- 8>
P
ST1RA B
B G
10A HEATER
1K 13
B
RB
S4 SLT+ SLT- DSL SL2+ SL2- SL1+ SL1- THO E2 SL3+ SL3-
RL
9D
L- B9SRV
SR5A 5B
BR
1A
+B
W
W
Left Side of
Cylinder Head4C
W- BME01
Rear Side of
Cylinder Block A* 1 : w/ Navigation System
(
*1)
BR I15
F 7 J 6
P 1
J 6 J 6 J17
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)
J 7
S28(
A)
, S29(
B)
E 1
J 2
Electronically Controlled Transmission SolenoidEngine Cont rol Module
Fusible Link Block
Ignition SW
Junc tion
Connec tor Junc tion
Connec tor Junction
Connector
Junction
Connector
Junction
Connector
Junction
Connector
A/T I ndicat or SW
Shor t
Connec torW- B

2005 HIGHLANDER (EWD592U)
M
5
678
13 HIGHLANDER (
Cont' d)
16 A
GR
8B
IBRight Ins trument Panel
Brace
W- B
27D 35D 26D 34D 17B 29B
Electronically Controlled Transmission and A/T Indicator (
3M Z- FE)
OD MS L NT+ NT- NC+ NC- SPD MPX2
2IF36B 15A
WMPX1 SNOW
3F 13
6 2
L
4
3 2
WR
R- W W- G
AB
3H 8
W- B
R
8IF3
R1 5BR
IF312
G
P ECT SNOW
O/D OFF
L
2
3
D
N
R
BG
3A 4
3C 7
P BR
MPX1
18 B
Y
3D 8
W- B3B 12
A/T OIL TEMP.
3K 2BR11 1
Engine Contr ol Sys tem
<2- 16>
21 E 18 E 19 EVTA1 VC THW
Engine Contr ol Sys tem
<2- 9><2- 10>31 EVTA2
2CM-
3CM+
Multiplex Communication
System (
BEAN BUS)
<20- 3>
2 1 1
C 6
T 3T16
E 5(
A)
, E 6(
B)
, E 7(
C)
, E 8(
D)
, E 9(
C)
B 9(
A)
, B10(
B)C11
Bo dy ECU
Counter Gear Speed Sensor
Combination Meter
Electronically Controlled
Tr ansmiss ion Pattern
Select SW Engine Cont rol Module
Turbine Speed Sens orTransmiss ion Contr ol
SW
Transmiss ion Shift
Main SW
E 4
W- B

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
14 HIGHLANDER(
Cont. next page)
2ACC
IG1
IG2
ST2 AM1 4
6 7AM2
40A AM1
1C 6
1A 12
1
2140A ALT1W 30A AM2
10 3
FL MAIN
3. 0W
Batt ery 1IC12I 12 1
3 5
2F 42B4 2B 52B7
20A EFI NO. 1EF 1 Rel ay
1C 1
1G 6
10A IGN
1C 7
7. 5A IG1
1G 2
4E 14M 4
W
11 IK2 10 IK2
EH Under t he Lef t
HeadlightA
B- W
W
1A
+B
A3A
BATT
BR
W
19 B
ST P
BR
9A
IGSW
P RR G
G
GR
WYW
L- Y
B W- B
P- LW- B B
11 D
L13 D
Y- R12 D
B- Y
9D
Y- G19 D
R- B18 D
B- W15 D
L- Y14 D
L- R32 D
G- Y
827351049128 E 6 E
W- B
EF Left Side of
Cy linder Block4CW- B
EEIntake Side of
Cy linder Block 7DW- B7C
W- B
4K 54A 6 6197382
PL RL NL DL 2L LL
C
C
L- Y R- B Y- R L- W
6A
V
11B 7A 10B 9B
P
8B
R
R
Power Source Electronically Controlled Transmission and A/T Indicator (
2AZ- FE)
8MREL S4 SLT+ SLT- DSL SL1+ SL1- SL2+ SL2- THO E2 E02 ME01 E04 E03PRND2L IK3 13
B
19 IM1 20 I M1 9IM1LY
B
B
GR GR
VL
Stop Light SW
<9- 2>
21 E 18 E 19 EVT A1
VC THW
Engine Contr ol Syst em
<3- 7> 10 IM1
6
R O G G WB Y BRO O
E EP G Y- G
7IM1 18 IM1 IM1 8 ST1
10 A HEAT ER
1K 13A BB
RB
S4 SLT+ SLT- DSL SL1+ SL1- SL2+ SL2- THO E2
BR
5B
5A
BR
2A
+B2
W W
1C
BRE1
A ABR
J 7
7EE01
W- B
W- B
31 EVTA2
2CM-
3CM+ I15
J 6
P 1
J 6
J 6
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)
J 7
S2 8(
A)
, S29(
B)
E10 J 2 F 7Engine Control Module
Electronically Controlled Transmission Solenoid Fusible Link BlockIgnition SW
Junction
Connec tor
J unc tion
Connec tor J unc tion
Connec tor
J unc tion
Connec torJunction
Connector
A/T Indicator SW
Sh or t
Connect or

2005 HIGHLANDER (EWD592U)
M
5
678
14 HIGHLANDER (
Cont' d)
16 A
GR
18 B 27 D 35 D 26 D 34 D 17 B
Electronically Controlled Transmission and A/T Indicator (
2AZ- FE)
OD MS MPX1NT+ NT- NC+ NC- SPD
IF3 6B 15A
WMPX1 SNOW6 2
L
4
3
WY
R- W W- G
MPX2 29 B
IBRight Instrument Panel
Br ace
BR3K 2
W- B
ECT SNOW
R N DL O/ D OF F3D 8
P3A 4
3C 7B
W- B
R
3H 83B 12 AB
Y
2
PA/ T OI L T EMP
11 1
3F 13
W- B
W- BW- B 2 1
2 1
Engine Cont rol Sy stem
<3- 6> Multiplex Communication
Sy st em (
BEAN Bus)
<20- 3>2
C 6
T 3
C1 1
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)
B 9(
A)
, B10(
B)
T1 6
Body ECU
Counter Gear Speed
Sensor
Combination Meter
Electronically Controlled
Tr ans miss ion Pat ter n
Select SW
Engine Contr ol Module
Turbine Speed Sens orTr ansmiss ion Contr ol
SW
E 4

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
34
2 1
(
Cont. next page)
15 HIGHLANDER
A
B
D V
P
V
P
4E 1
P
555
55
ABS MTR Relay
LG
B- R
4C 2
B- OB- OLG G- RB
45 15 14 31219 5 6 20
B M RL+ RL- RR+ RR-
+BS MRF MR R+
2 1
2 1 2 1
2 1
7 IC2 16 IC2 6 IC2 15 IC2
RV GRP
Y- GG
W- LY BR
Power SourceV S C a nd Tire P ressu re W a rn in g System
O18FL+ FL-
4
P R- Y
3FR+ FR-
17
LG
ABS CUT Relay GR
4H 2 4C 11C L
L
1 2GBR-W
B- R
46
IG1 BZ302 IA1 12 IA1 1 IO2 2 IO2
Y OL R
30A AM2
FL MAIN
3. 0W
50A ABS2
W
2ACC
IG1
IG2
ST 2 AM1 4
6 7AM2
1A 11C 6
30A ABS1
140A ALT
2B WY
40A AM11 2
1
1IC1
L- YB10 89 W
Bat tery 2I 12A 4GRG
7. 5A ECU- B
3W D. C. C
BR10A ECU- IG
1C 7
1D 10
10A IGN
1C 1
1G 6 GR
G
4M 4WE EP
84M
G
20 IC4 10 IC4
GRO
4J 4
Y
55
W- L
G- R
5
25 13
2 51
3 B B- O 10 1G1D 9
W- L PB- R
ST 1
10A HEATER
1K 13E BB
5IC3
W
I15
F 7S2 7
A2 5
A2 4
V 8
J 6A 5
A 4
ABS Speed Sensor Front LH ABS Speed Sensor Front RH
ABS Speed Sens or
Re ar L H ABS Speed Sens or
Re ar RH
Fusible Link Bloc kI gnit ion SW
J unc tion
Connec tor
Sk i d Con t ro l ECU wi t h Ac t u at o rVSC Warning Buzzer

2005 HIGHLANDER (EWD592U)
M
78
6 5
(
Cont. next page)
15 HIGHLANDER (
Cont' d)
A
B
C
P- B W- L24 42 13
GR- BD/ G TS WFS EData Link Connector 3
<2- 17><2- 18><3- 12><3- 14>
BR- R12SP1
LG- B44BRL
R- L29WA
L- Y36VSCW 27
G- YSTPStop Light SW
<9- 2>
B
11CA NH
W25CA NL P
V
L
V S C and Tire Pressure W arning S ystem
15IC4 16IC4 4IC4 5IC2 10
NE O 3IC4
V B
VW-L
IC4 5
ENG+923
ENG- 18 IC4
W- G RYG-B
IC4 7
TRC+822
TRC- 19 IC4
Y- B G
Engine Contr ol Module
<2- 14><3- 9><3- 10>
EHUnder the
Left Headlight1 2
W- B32GND1
W- B
W- B W- B G- W
GND2
17 FSW+ DP
21 IC4 8 IC4 9 IC4
BRWVBRSB SBV
CSW
43L- R B- Y
41INIT
17 I C4 2 IC4
4
11
2
3J 44J6
3F 13
IBRight Ins trument
Panel Br ace
W SB
W- B W- B
W- B
WV
SB
SB
BR
LA
B
C
D
F
G
H
I
J
K P
PL V
22 IC4
B
13 IF3
W
4J 7 3G 9
4N 14L7 4D 4
ICRight Cowl
Side Panel
W- B
W- B W- B
17 IL1
W- B 1 34J
LG
94M
B R- WPKB
28
11 IC4
13 I C4 12 IC4
W
L
EBRight Front
Fender Apr onEARight Fr ont
Fender Apron A
W- B 6IC4
P
B
EE B
34H
12 4H
Body ECU
<5- 4>Mult i- Display
< 30- 6> RLG (
*1)(
*1)(
*1)(
*1)
* 1 : 2WD
L 4C 3W- B
W- B
J 4
S27
J 4
P22
B13
T 6
P 3 Brake Pedal Load
Sensing SWJunc tion
Connec tor
Parking Brake SW Pressure SW
Skid Contr ol ECU with Act uat or
TRAC Of f SW

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1112
10 9
15 HIGHLANDER (
Cont' d)
L
W G
W
B
W
Y
W Data Link Connect or 3
<2- 18><3- 14>
L P
W- B P
13
2910CA NL CA NH IG1 BAT
ESS
SB B
CP
P
GVA 11 B 6 B 11 A 17 L V
B W
O VW-B32 5
1 GNDCA NH CA NL IG
BFNear the Rear
Side Mark er Light RH
W- B
13
7B
SB
BR
W
L
P WB GR SB
IBRBR
Speedometer
VSC Brake
A
3K 23B 12
Right Instrument
Panel Brace A
H
I
VSC and Tire Pressure W arning System
D
F
J
K
M u ltip le x C o m m u n ic a tio n S y s te m (
CAN)
3IO2 12IO2 13IO2
G W
E E
21 10 22 11 20 9
19 8 9IL1 P
ABSBR
16 IF3 6 IF2 6 IF3 18 IF3
BR
SB
SB
15 IF3
EB Right Front
Fender Apr on
VR R-BA B
E7
3C 4
3A
1A
P
B 10
1IC4
A A
BBRight Center
Pillar
W- B
J19
A
W- B
Slip
TRAC OFF
Tire Air
Pressure (
2WD)(
2WD)
LW- B
W- B
C1 1(
A)
, C12(
B)
B 4
J16 Y 1
J19J17
J 4Brake Warning SW
Combination Meter
Junc tion
Connec torJunction Connector
Junct ion
Connect or
Junction
Connector
Steering Sens or
Yaw Rate Sensor
S14
2 1

2005 HIGHLANDER (EWD592U)
MEMO