TOYOTA HIGHLANDER 2001 Service Repair Manual

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
34
2 1
21 HIGHLANDER
1G 11
30A
POWER
11A140A ALT1 220 IA1
LG
Fro nt Re ar Up Do wn Fro nt Re ar Up Do wn
1 2
MY
LL
961
1 2
M
G
BB
10 5
2 1
M
BR
PP
32
2 1
M
W
VV
78
Left Center Pillar
BA
Front Rear
4
23
14
2 1
M
Y
WW
Power Seat (
Driver' s S eat)
Power Source
2
1BW O RLG
W- B W- B
Batt ery FL MAIN
3. 0WCA
BB BB
LG O
AB AB
AA
W- B
1D 13O
41
96
2 1
M
Y
LL LG
32
2 1
M
BR
PP
1IO1
CA
BB
AB
AA
BBRight Center Pillar
GR
W- B W- B OB
E
Rear
Rear Front
Front
RCLF SL DFSlide Reclining
RCLR SLDR
Power Seat (
Front Passenger' s Seat)
AB
W- B
5
LDWN LUP RCLR RCLF FDWN FUP SLDR SLDFB
E
F 7P15 J21(
A)
, J22(
B)
J21(
A)
, J22(
B) J23(
A)
, J24(
B)
P16P24
J23(
A)
, J24(
B)
Fusible Link
BlockJunct ion
Connect or
Junc tion
Connec tor Junc tion
Connec tor J unc tion
Connec tor
Power Seat Contr ol SW
(
Driver ' s Seat Control)Power Seat Contr ol SW
(
Dr iv er ' s Seat Lumbar Suppor t Control)
Power Seat Motor
(
Driver' s Seat Lumbar Support Contr ol)
Power Seat Mot or
(
Driver' s Seat Reclining Control)
Power Seat Mot or
(
Driver' s Seat Slide Control)
Power Seat Contr ol SW
(
Front Pas senger' s Seat
Control)
Power Seat Mot or
(
Driv er' s Seat Fr ont Tilt Control) Power Seat Mot or
(
Driv er' s Seat Lif ter Cont rol) Power Seat Motor
(
Fr ont Pass enger ' s Seat Rec lining Contr ol)
Power Seat Motor
(
Fr ont Pass enger ' s Seat Slide Contr ol) P2 7
P2 8
P1 8
P26
P20
P25
P21

2005 HIGHLANDER (EWD592U)
M
1
234
22 HIGHLANDER
2ACC
IG1 AM1 4
140A
ALT 12I
20A TOWI NG
1C 7G
1C 6
3
40A AM1
2F 1
7. 5A IG1
W
B
WW
2
1
Bat tery FL MAIN
3. 0W2
151H
V
81F
15 A SEAT HT R
1A 1
2 1
3 5 11
11
4L 9
4L 7
ICRi g ht Co wl S i de P a nel
BBRi g ht Ce nt e r
Pillar 1BM16 4 7BM1 10 IP14IF1
3K 63K71IF1
5IA2
6 4
BALeft Center
Pillar 3F 13
IBRight Ins tr ument
Panel Br ac e 46 64Power Source Seat Heater Trailer Towing
339IC3
12 IA2
BCLeft Side of
Rear Cr os s Member
Tur n Signal Flas her
<8- 2>
B5261 810439
3124 LL
W
G
G- RG
W- B W- BW- B W- B B R R W- B W- BRRP W-B W-B
W- BW- B W- BWRY L
BR
Y
G
O V G- R
WWTAIL Fu se
<7- 4> St op Light SW
<9- 3>
+B RT LT TAIL STP
GND LT/ S RT/ S TL
GND LT/ S RT/ S TL RH EIG IG
ELH
SEAT HEATER
Re la y
AB
AA
BW- B
BW- B
ST1* 1 : w/ Power Seat (
Front Passenger' s Seat)
* 2 : w/o Power Seat (
Fr ont Pass enger ' s Seat)
AB
AA BA
CB
RB W-B W-B
(
*1)
(
*2)(
*2) (
*1)(
*1)
(
*2)(
*2) (
*1)
BA
CB I15
F 7S 3 S 4
T 9
S25
J21(
A)
, J22(
B) J21(
A)
, J22(
B)
J23(
A)
, J24(
B)
J23(
A)
, J24(
B)
S26
T1 0
J12
Fus ible Link BlockIgnition SW
Junction
Connector
Junction
Connector Junction
Connector
Junct ion
Connect orJunc tion
Connec tor
Seat Heat er
SW LH Seat Heat er
SW RHSeat Heater
LH
Seat Heat er RH Towing Conv er ter
Trailer Hitch

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
34
2 1
23 HIGHLANDER
61C
40A
AM1
1A 1
140A ALT
1C 7
25A
WI PE R
1B 21E51B320A
WASHER
Left Cowl Side Panel
IA 1D 141B 8MOFF
HI GHLOWINT
Was her+B B1 IN1 IN2 WF EW +2 817716
+S +111
INT TI ME
2 Wiper RelayIK3 1
Front W iper and W asher Power Source
G
L- W
LG
WBWW- B W- BW- B
W L- W
B1 2
5 23 14
Bat tery
Front Wiper and Was her SW
1 2
Rear W iper and W asher
FL MAIN
3. 0W1E 615A
RR WI P
IC210
IC29
IC211 L
LG
RG
B
L
4
1EW- B5
4C 6
4MW- BM
2 1
9IA2
6BG2
1
10 BG3 5 BG3
19 IA1 18 IA1 INT
ON
WASH2
13 212
10 WASH1
OFF11 IK3
Y
V
IALeft Cowl Side Panel 4C 5
4M 6
1E 4
1D 14W- B W- B W- B
32GRB
LGL
GRP
P GR GR GR L
Rear Wiper
and Was her
2ACC
IG1 AM1 4
GR
L- BM
2 1 L- W ST1
I15
F1 4 R21
R1 8
F 7
F 6
C14C14
EWRC1R+1R
Combination SWCombinat ion SW
Fr ont Wiper Motor Fusible
Link BlockFr ont Washer Motor Ignition SW
Re ar Wi p er Mot o r Rear Was her Motor
LS C1 +B 1 2
Diode
(
Rear Wiper) D16
YGR
GR
Y

2005 HIGHLANDER (EWD592U)
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2 1
24 HIGHLANDER
1C 6
40A
AM1
11A140A ALT11C 7
10A
ECU- I G
1K 9
Right Ins tr ument Panel Br ace
IB 3F 133D 93IF1
3 4
IC4
Ri g ht Co wl S i de P an elIF31
Stop Light SW
<9- 2>1C 2
7. 5A
RAD NO. 2
1J 6
3A 8
3E 9 3K 5
VOper at ion SWSelect
SW
2IF2 1IF2
6IB2 5IB2 13IB2
6IN2 5IN2 13IN29IF2
MM MM3E 11
3F 13
IBRight Instrument
Panel Brace
Power Source
S h ift L oc kR e mo te C o ntrol M irro r
65 46 58
1 5
34252 43 6 7 L
GL
V
SB L
W- B
W- BY
R
WBWW V
W- BP
W- B BW- B GO
W BROOB W- B
L
GP LGGP LGW- B
W
W
Shift Lock
Co nt r ol S W Shift Lock
Solenoid
1 2
BatteryHL V LHR V R
Ri g ht
LeftUp Do wnUp /
Left Down/
Right
STP KL S+ E IG ACC
SLS+
SLS-
P2
P1
P
W
O 2
FL MAIN
3. 0W3A 1
3K 4
R
4G 8
4L 73IF2 4IF2
4I 74K 7
6
4K
L
2ACC
IG1 AM13
4
M+ E B ST1
I15
R 5
R20 R19
K 4
S 5
F 7
Fus ible Link
Bl oc kIgnition SW
Ke y I nt e rl oc k
Solenoid
Remote Control Mirror SW
Remote Control Mirror LH Remote Control Mirror RH Shift Lock ECU

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
25 HIGHLANDER
Power Source M irror Heater and Front Deicer
2ACC
IG1 AM1 4
40A
AM1 20A
FR DEF1C 6 1F 3
1A 17. 5A
IG110A
HEATER 1C 7
1K 13 1F 21G8
2 1
5 31 1
11
4F 3
4K 3
IALeft Cowl
Side Panel 1D 141B 9 18 IK2
VG W-B W-B2 1 3 4K 4 4L 12
1IB1 1IN1
8 7
8 7
2IB1 2IN1
4L 8 4L 10
4N 1 4L 7
ICRight Cowl Side PanelRight Ins trument
Panel Br ace IB 3F 133J 6
W- B W- B112 10 8IF2 52
1
Bat tery FL MAIN
3. 0W
FDEF IG+
GND
W- B
W- B
B BGG G
B B
W- B W- B
W- B W- B
DE I CER
Re la y
GR
B
W
GB B
G
P B
3A 4
3J 7BR
A A
7IK23 5
2 1
42H 22A8
4
2F
A
EHUnder the Left
Headlight2C 12C3
18 IC2 17 IK3
16 IL2
18 1IA1
2BG1
1A
1B
A
BELeft Side of
Back DoorYY
B- R
B GR- L
P SB
YL
RR
DE F
Re la y
Rear Window
Defogger SW
YB
Y
1
W- B
W- BB- RG
W- B
Rear W indow Defogger
30A
RR DEF
140A
ALTGW
RDFG 1 2
G
ST1
Fr ont Wiper Deicer
and Mirr or Heater SW I15
A1 0
R1 6(
B)
, R17(
A)
N 2
J 5
J14 J 2
A10
F 5
R1 9
R2 0
A/C Cont rol Assembly
A/C Control Assembly
Front Wiper Deic er
Ignition SW
Junc tion
Connec tor Junct ion
Connect or
Junct ion
Connect or
Noise Filter
(
Rear Window Defogger)
Rear Window
Defogger
Re mo t e Co nt r ol
Mirror LH
Re mo t e Co nt r ol
Mirror RHHeat er
Heat er
Fusible Link
Block F 7

2005 HIGHLANDER (EWD592U)
M
1
234
26 HIGHLANDER
Power SourceKey Reminder and Seat Belt W arning
1C 6
1A 1140A ALT2B 40A AM11WW
WFL MAIN
3. 0W3
7. 5A ECU- B
D. C. C
2I 1L
G
2ACC
IG1 AM13
4
2A 412 IK3W- L
1G 10
1H 6 BR1C 7
7. 5A IG1
10 1K
3A 10
3B 5
GR
1C 2
7. 5A
RAD NO. 2
61J
3A 8
3C 6
W
G BRB
9D 5A 17A
3CBECU IG ACC
HRLY
2BKSW
D D
1 2
GG W-B4G 9
4L 7W- B
4N 1
ICRight Cowl Side
Pa ne lW- B
MPX1 MPX2
Buzzer
3A 4
3C 73F 9
3D 3P V
11 IL2
LG4D 11V V
10 A HEAT ER
13 1K
B
9A
3B 12
3K 2
BR R
10A DOME
2A 3R
4H 6
B
L
G
D
Theft Deter rent ECU
<19- 3> G
Light Auto
Tu rn O ff S y s te m
Headlight System
<5- 3><6- 3>
11 CDCTY
Int er ior Light Sys tem
<10- 6> Headlight System
<5- 4><6- 4>
HEAD
B 17TAIL
B 18TRLY
A 7
Taillight System
<7- 1>
DTr ans ponder Key Comput er
<4- 4> G
MPX-
Dr iver ' s
Seat Belt
1 25IC3
V
ST1
6B 10A
Multiplex Communication
System (
BEAN Bus)
< 20- 3>
3J 7 1K 3
3A 13
3I 11
VB
B 2
MPX+ 2A
BR
13 A
BACC IG+ V
BR
IBRight Instr ument
Panel Brace 3J 6
3F 13W- B
11 A
W- BGND
Multiplex Communication
System (
BEAN Bus)
< 20- 4>
11 12 1
BR F 7I15
B 9(
A)
, B10(
B)
, B11(
C)
, B12(
D)
J 6
K 4
C11
A10(
A)
, A11(
B)
Pass enger ' s
Seat Belt A/C Cont rol Assembly
Bo dy ECU
Combination
Met er
Fus ible Link BlockIgnition SW
J unc tion
Connec tor
Unlock Warning SW

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
34
2 1
27 HIGHLANDER
L
21C
Power Source
1D 4
1F 1
3A 6
3F 13
IBRight Ins trument
Panel Br ace1
1 22LG
PW-B W-BW- B V
B
E
Power Outlet (
12V)
C iga re tte L igh te r
ACC
Relay
15A CIG71H
2 1
5 3
LG
A
EH
R1
+BL
3 2-SG- RB 5 1
+S
WW- B
W- B
4E 2
GRY
W- B
GR
4
AC2 7 3
AC1 3
63D 3A
W- B
10 1K 4
1C 7
R
G
10
7. 5A IG1
1
4
W
W
7IA15 EXCD 3
1K 4
Engine Contr ol Module
<2- 12><3- 10>
11J
1
GW-BB
E 2
2
140A ALT11A 140A AM1 15A
PWR OUTLET1
1C 62ACC
IG1 AM1BW
Bat tery FL MAIN
3. 0W
W
32I 120A
POWER OUTL ET2
2C 6W G- RINVERTER Relay
1D 14
3G 4
Y
2IA2
IALef t Cowl Side Panel W- B
W- B
W- B
3F 12W- B
BB
Rear Side of
Rear Cr oss Member BC
W- BB
Under t he
Left Headlight 7IL222
22 15 IK2
R
7IA2 1IK2
RR
R
L
G* 1 : w/ Rear Seat Entertainment System
G
(
*1)G
(
*1)
ST 1
BIND
E
Power Outlet (
110V)
F 7
C 9
J 2
J12
V1 5
P23
M 2
R1 3
F 8
I15
Cigarette
Lighter Fusible Link Block
Front Power Outlet
I gnit ion SW
Junct ion
Connect or
Junct ion
Connect or
Main SW Power Outlet
(
110V)
Rear Power Outlet
Volt age Inver ter

2005 HIGHLANDER (EWD592U)
M
34
2 1
28 HIGHLANDER
2ACC
IG1 AM13
1C 6
11A
1
Battery
1C 2
40A AM1
IB
140A ALT1 2LW B W
W
Power SourceAudio System (
6 Speaker)
2
FL MAIN
3. 0W3B 4B
2B
10 IF3
7IB1 1
12 2I
PP R
25A
RAD NO. 1
6B
20 IF3
6IB1
VG W
9
A 3
R LG R
2 1 BC1 5IR1 1A 1 3A 13
2A
10 IR1
GR
1BH1
5BB1
12
BY L R
6A
20 IR1
10 BH1
10 BB1
YR-YY W
B
3
R L
BR
B 7
IN1 6IL1 10B 5
Y Y LG
2 1 IN1 7 2C 4
IL1 1B 1
11 IR1
7. 5A
RAD NO. 2
3I
10 BC1
WL W
1K 3
20 IK3
2IL1
L- Y LG L- B
L- Y WD. C. C
ACC+B BU+B
GND FL+ FL- FR+ FR- RL+ RL- RR+ RR-
Ri g ht I ns t r u me nt
Panel Br ace
P VL
LG12
3412
34
V
ST1
Y
34E 2
V4E 1H 1
6IA1
1V
F1 0R1 0 R 9 F1 1T12 T11R 2(
A)
, R 3(
B)
A2 6 I15
F 7
Antenna Amplifier
(
Re ar)
Fusible Link Block
Front Door Speak er LH Fr ont Door Speak er RH Ignition SW
Radio and Player
Rear Door Speaker LH Rear Door Speak er RH Tweeter LH Tweeter RH

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
29 HIGHLANDER(
Cont. next page)
Audio System (
8 Speaker)
A 2GACC +B
R- Y
7B A
A
IR1 111IR1
LGL
4B 11BRL+ RL-
BH1 110BH1
GRLG
* 3 : w/o Nav igation Sy st em5 BB1 10 BB1
L Y
12GB
Y B
14 IO1
G
B ACCL- B
GR
* 1 : w/ Rear Seat Enter tainment Sy st em
* 2 : w/ Nav igat ion Sys temPower Source
R W R- Y
WR- Y
IR2 1
IR1 10 20 IR1
Y R- Y12 12GB
R W34 LG(
*2)
R(
*2)
B(
*2)
G(
*2)A
B
11 C 1 C
G
G(
*1) V(
*1)
A
VV
16 IK2(
*1)A
A(
*1)
V(
*1)
(
*1)
202ACC
IG1 AM13
140A
AL T 12I
25A
RAD NO. 1
1C 2
1C 6
3
40A AM1
1A 1 2C 4
7. 5A
RAD NO. 21K 3
LG
2IL1
IK3
W
L- YB
WW2
D. C. C
1
Batt ery FL MAIN
3. 0W2
1
3K 10 3C 4
L- B
11H3I 9
3A 13
4E 2
4E 34D8
6IA1
V YV GR
V
1 L- B
LL- B
W
2
7. 5A CRT
2 2
1
(
*1) W
(
*3)
(
*3)
1IL1 20 IF3 10 IF3 10 IL1
P GY R
FL +Y
2B B 9R- YFL - FR+ 1B
LG
L
B 8
FR-
7 I B1 6 I B1 7 I N1 6 I N1 3C 5
R- YP V LGL
1
4 32
12 ST1
I15
J17
R 4(
C)
, R22(
A)
, R23(
B)
S2 2(
A)
, S23(
B)
R 9
F1 1 F1 0
T1 2
T1 1
A26 F 7
Antenna Amplifier
(
Re ar) Fusible Link Block
Fr ont Door Speaker
LHFr ont Door Speaker
RH Ignition SW
Junc tion
Connec tor
Radio and Play er
Rear Door Speaker LHSt ere o Power Amp li f i er
Tweeter LH Twee ter RH
Junct ion
Connect or J18
Navigation ECU
<30- 7><30- 8>

2005 HIGHLANDER (EWD592U)
M
78
6 5
29 HIGHLANDER (
Cont' d)
AMP+
3C
IR2 6V
BEEP
17 C
IR2 14L
16 IR2C 10SLD
4A
(
*4)(
*4)
BEEPA 1
PAMP+
3B 10BRR+ RR-
BC1 510BC1
R G
Audio System (
8 Speaker)
12 BGND20 C
IBRi g ht I ns t r u me nt
Panel Br ace GND
BRBR
ANT+ 13 CO
B 6GRGMDB 7
RSW1B 8
LGSW2
L GRB10 12 11EAU AU1 AU2R W
* 1 : w/ Rear Seat Ent ert ainment Sys tem
1B A
BV(
*1)
G(
*1)A
B V(
*1)
G(
*1)
(
Cont. next page)
* 4 : Shielded
2 1
BR
5IR2C 7MU TE
A 12
MU TE SGND 11 AS. GND
16 C
IR2 15
Y
G
12 IR2C 18RR+
A 14
R. R R. L 13 ARL+
19 C
IR2 13
R
F. R 6AFR+
8C
IR2 4W
F. L 5AFL+
9C
IR2 3BL
GY BR
R
W
B
W- B
C
W- B
5IL1 3IL1 4IL1
BFNe ar t he Re ar Si d e
Mark er Light RH A A
BB Right Center PillarA
W- B
W- B
W- B C1 6
A21
J19
R10R 4(
C)
, R22(
A)
, R23(
B)
S22(
A)
, S23(
B)Antenna Amplifier
(
Front) Combination SW
J unc tion
Connec tor Radio and Play er
Rear Door Speaker RHStereo Power Amplifier