TOYOTA HIGHLANDER 2001 Service Repair Manual

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
2 HIGHLANDER(
Cont. next page)
Engine Control (
3M Z- FE)
Power Source
YB- WW
EFI
RelayD
W IC1 4
RW
G
LGIC3 6
R
W
WW
1
2
2 2
B- W
R
R
R R
A
B
6 7
L Y B W
CIRCUIT OPENING
Relay
R- W
B- WGY B
W- B
P- L
W- B L
W
BR
Y
W
K
P- L
G
R- WB- W
W
B
Y
LR R R R R 1
2
Y
G
W
W
WL- Y
QP ON MLJ C
IK3 13
A
Under the Left
HeadlightEH 52B 52G
32D 82B 42F5
3 1
2
Lef t Side of
Rear Cross MemberBCM 4
51 11 1
5 1
23 4E 1
61G
A/ F Rel ay2 2 2
2 1
3 5
R R R
5EB1
2
1 2
1 2
1 2
1 2
1 2
1 91G 41C 11G 11C
12I
20A
EFI NO. 1
2 GR
2
IC1 1
3
1
30A AM2
140A ALT
2W
10
Bat tery FL MAIN
3. 0W4M 4
7. 5A OBD
1E 10
1A 1BW
22B 72
2 1 2F B- W
B- W
G
2IC2
B
2A 7
W- BW- BP- L
14FB P
P
2B 4E W 2ACC
IG1
ST1
IG2
ST2 AM1 4
AM2
10A ETCS25A A/ F 15A IG2 10A IGN 10A EFI NO. 2
W40A AM1
1C 6
G10A HEATER1C 7
1K 13 G
73C
43A
BH P
Cruise Malfunction
Indicator Lamp11 A 4 B1A 13A
10 IL2 3B 12
3K 2I SB 9IL1
IB Right Instrument
Panel Brace
BR SB
PRL
P W
P
1 2
8IA2
W
B B B- W B- W
W
I15
F 7
I 8 I 9
I10
I11
I12
I13 C1 1(
A)
, C12(
B)
J 2
F12 Combination Meter
Fusible Link Block
Fuel Pump
Injector No. 1 Injector No. 2
Injector No. 3
Injector No. 4 Injector No. 5 Injector No. 6
Ignition SW
Junction
Connector

2005 HIGHLANDER (EWD592U)
M
3
IK2 10
L- B
GRL- W
B- R
2
30 W
E
R
V
B- RD
5
IM1 5
R
1
BJ1 18B
5IO1
W- B
78
6 5
(
Cont. next page)
2 HIGHLANDER (
Cont' d)
E ngine C ontrol (
3MZ- FE)
29
STARTER Fuse
<1- 2>
Park/Neutral Posit ion SW
<1- 2>NS W STA
B B- R RSB
W- B
EB1
CCV
LE 27 1
2 B- W
B
Y
G
B- WP
R- W
W
B
Y
L A
B
D
G
VG
J
K E
L
M
N
O
P
QD 35E4EE32E1E 8A 10A20
THA 2A 1A
B- W
3AE E 16 E 17
W
Y
E2 G
G B- WWB YL2 1
2 1
2 1
6CE 15 34 E EB2 7B- W B- R B- R
BR- YG
33 D
W
A
B
C 21 6B
W+BM
W
RRL +B 2 +B B AT T
Air Conditioning Sys tem
<34- 8><35- 8>B 2
B- R
B- R
W- L2B- R
E R- W
GR
Y- GBR
8C
L- W
8E
R- L
9E
P10 E
Y- B11 E
L- Y12 E
G- Y13 E
L- R
I gnit ion Coil and I gniter s
<1- 3><1- 4> E
FAN NO. 2 Relay
<32- 3>
MREL FC #60 #50 #40 #30 #20 #10ACMG CF IGT1 IGT2 IGT3 IGT4 IGT5 IGT6 ACMACI S PRG HT2 B
Charging Sy stem
<1- 5>
11 IK21
29 D
BOX 2B3(
Shielded)
4 B- W CW W
C
IO1 16 F
BJ1 14
GR
1
B- W
STP
19 B
Electronically Controlled Transmission
and A/T I ndic ator Sys tem
<13- 2>
27 D 35 D 26 D 34 D
Elec tr onic ally
Controlled
Transmission and
A/T Indicator System
<13- 5>
NT- NT+ NC+ NC-
IGF1
Ignition Coil and Igniters
<1- 3> W- RE 24 GR
W
B- R B- R B- RGR
B- R B- W
9A
IGSW 12 B
ST 1-E E
HEE
P
2
1
Stop Light
System< 9- 1>SB
I11 AW4F BR
BR
P
PVP
4 3
14 IM1
W
V 5
S15 V1 4
J 3
H 6
V 4
V 2
M 1FAN NO. 1 Relay
<32- 3>
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)
Engine Cont rol Module
Heated Ox ygen Sensor
(
Bank 2 Sensor 2)
Junction
Connector
Mass Air Flow Meter
Stop Light SW VSV (
ACIS No. 2) VSV (
EVAP)
VSV (
ACM) VSV
(
Canis ter Closed Valve)
E2 +B +B E1
VG E2G THA
HT OX

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
W- BW- BG- B L
BJ1 VTA1 VCVTA2 E2
12
BRBI1 13 IM1
3M- M+12
IM1
1112
10 9
(
Cont. next page)
2 HIGHLANDER (
Cont' d)
E ngine C ontrol (
3MZ- FE)
E(
Shielded) R- W
GR B
C
12
IO1 3 D
6
25 D 21 D24 13
BRB
R- Y
VTA2 VC18 E 315D 22D A20 13 24D
D 3EB1
30 D 4 D 23 D D31 13 24 6EB1
17 C 3 C 21 E2 1
19 E 21 A C
2 1 16 C 15 C
2 1 14 C 13 C 4 W- B
B- WBRY
GRWB- R
YA
B
D
E
PLL
HT1B OX1B HA1H A1A+ A1A- HA2A A2A+ A2A- TC 2
G- WG- RL- R G- B
W
G- R G- B
OC2+ GE01 M+ VTA1 THW PTNK
OC 1+ OC 1 - OC2 - E(
Shielded)
(
Shielded) O
O
BRR- W
5
B- R R- W
IM1 (
Shielded)
6
M-IM1 3
(
Shielded)
W
F AW
(
Shielded)
BJ 1 16
3BI1IO1 15
2IM1
BR G- RBYL
WB R- WB- R Y
WB R- WB- RY3 Y
1 W- B
2 BR BR
1 22 C
EC Left Side of the
Cylinder Head7E 6E
Y- B W- B W- BMOPS E01 E02
1 10 CPSW
R- W
(
Shielded)
C
12 A
Voltage Inv ert er
< 27- 4>ELS2G
DMulti- Display
<30- 6>
R- W R- W
W- BIO17
PL
17 BJ1
BR2BI1Y
O
FBR
5A
5B
E 28
E2
BR BR BRR- W
BR
BR
4C
W- BME01
W- B (
*1)
(
*2)
* 2 : w/ Rear Seat Ent ert ainment Sys tem * 1 : w/ Navigation Syst em
O 1
P 2 E 2
V11
S28(
A)
, S29(
B)
T13
A 7
A 6
H10 J16
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)
C 3
C 4 Air Fuel Ratio Sens or
(
Bank 1 Sens or 1) Air Fuel Ratio Sens or
(
Bank 2 Sens or 1)
C amsh af t Ti mi ng Oi l
Control Valve LH
C amsh af t Ti mi ng Oi l
Control Valve RH
Engine Coolant
Temp. Sensor
Engine Contr ol Module
Heat ed Oxy gen Sens or
(
Bank 1 Sensor 2) Junction
Connec tor
Oil Pressure SW
Power Steering Oil
Pressure SW
Short Connector
Throttle Control Motor
Vapor Press ur e Sens orVCC GND PTNK+B E2
+B AF- +B AF-
AF + HT AF+ HT OX 1B HT1B Thrott le Posit ion Sensor

2005 HIGHLANDER (EWD592U)
M
1516
14 13
(
Cont. next page)
2 HIGHLANDER (
Cont' d)
(
Shielded)
(
Shielded)
(
Shielded) O
E ngine C ontrol (
3MZ- FE)
A
B
D
E
ED Rear Side of
Cylinder Head6D 7D 26 C 25 C C24 27 CIM1
A A
A
A
A
AA
A
A
L R R GL B- W
(
Shielded) (
Shielded) (
Shielded)VV2+ NE+ NE- VV1+ EKN2(
Shielded)
(
Shielded)
(
Shielded)
(
Shielded)
(
Shielded)BR
(
Shielded)
BR RR
7C
W- B W- B
W- B
W- BE03 E05 E04B
D O
R
BR
G
G C
(
Shielded)
D28D 1 20 D 2D1EA1 2 3 EA1 4EA1
KNK2 KNK1 EKNKEA1
W
B
G
R R GB W
C W- B
F
B
G A
5ATACH
18 ASIL
19 AWFSE
E
R V
R
B
15 A
EOM
W- B
A W
30 AENG-
25 ATRC+
31 ATRC-
17 ANE O
R Y GB
24 AENG+
V
Skid Control ECU
wit h Act uat or
<15- 5> FW
1 2
1 2
2 1
26 A 22 A 28 A 27 A 23 A 29 A
VCPA VPA EPA VCP2 VPA2 EPA2 EPA2 YPA2 VCP2 EPA VPA VCPA
231564
BRWL R
B G Elec tronic ally Cont rolled
Transmis sion and A/T
Indicator System< 13- 4>
D 10 B 17 B
YSPD 9IL2Y
CANCEL
- SET
+R E S
ON - OFF
LG
24 BCCS
Cruise Control (
3M Z- FE)
26 BIMO
V
27 BIMI
B Combination Meter
< 31- 4>
29 B 18 BMPX1 MPX2
Multiplex Communication
Sy st em (
BEAN Bus)
< 20- 3>
1 2
1 2
V
(
Shielded)
1E
E1
BR
A
A4
17 IM1 BRBR
5 4
OLG Cr uis e Cont rol SW
K 3
V 7
C 7
V 6
J 7
A27
K 2C1 6
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)Accel Position SensorCrankshaft
Pos ition Sens orCombinat ion SWEngine Contr ol ModuleJunct ion
Connect or
Knock Sens or
(
Ba nk 1)
Knock Sens or
(
Ba nk 2)
VVT Sens or LH VVT Sens or RH
Transponder Key Computer
<4- 3>

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1920
18 17
2 HIGHLANDER (
Cont' d)
Cruise Control (
3M Z- FE)
4L A
A
Sk id Cont rol ECU with Ac tuator
<15- 6><15- 12>
W
B
W14
PPR
4L 6 12 4A 7
GF
B RSIL
11
OCA NL
6 CA NH
12TS
21 IL2GR
W- B
R C
D
SC BATTC 51613
4F 5
R W
OB
VV
B
B 15WFSE
E4G 1TAC
9
B
B
B
Sk i d Con t ro l ECU wi t h Ac t u at o r
<15- 6>
54I
4M 14G5
1E 3
1L 3
BR W
A
7 4N 14L
ICRight Cowl Side Panel
W- B
4H 5W- B
W- B
64C4CG
V O W
A
Occupant Classification ECU
<16- 12>
V BR
PCombination Meter
<31- 3>
Airbag Sensor
Assembly< 16- 9> V
Tr ansponder Key Comput er
<4- 3>
1E 12Body ECU
<18- 3> O W- B
J16D 3
Data Link Connect or 3
Junction
Connector

2005 HIGHLANDER (EWD592U)
MEMO

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
3 HIGHLANDER(
Cont. next page)
FL MAIN
3. 0W
Bat tery10W2
140A ALT30A AM2
13
Engine Control (
2AZ- FE)
1IC110A
ET CS 2
22I 1
1C 1
1G 1
1C 4
15A
IG2
1G 910A
IGN
2 1
2 1
2 1
2 1 5 EB1
RRR
1G 63 2 151
11 4F 1
5 4
M
BC Left Side of
Rear Cross Member12 1
3 5
2F 42B82D3 2B 5
EH A 13 IK3A
B
C
K
L
M
N
O
L- Y
B W W
Y
1 2GR
RRR
L Y B
J W
Y BR L W- B W- B
EFI
Relay
P- L W- BWY
B
Y W
W
B- R
CIRCUIT OPENING
Relay
W
B
Y
L 76
B
8IA2
B
Power Source
R R W
R W
6IC3
LG
2B 7B- W
2IC2
B
42B
10A
EFI NO. 2
2
2 1 2E B- W
W
F
B- R
G
4M 4 14E
P
WP
D
EB11
B- W
7. 5A OBD
1E 10
1A 1W
EB13
B- W
2ACC
IG1
ST1
IG2
ST2 AM1 4
AM2
1C 7
10A HEATER
1K 13G
73C
3A 4 G
B 61C
40A AM1
W
W
H P
CRUI SE Malf unction
Indicator Lamp11 A 4 B1A 13A
10 IL2 3B 12
3K 2I SB 9IL1
IB Ri g ht I ns t r u me nt
Pa ne l Bra ce
BR SB
PRL
Under the Left
He ad li g ht
P
W 1 2
4IC1
20A
EFI NO. 1 W
F 7I15
I11
I10
I 9
I 8 C1 1(
A)
, C12(
B)
F12
J 2
Combinat ion Meter
Fusible Link Block
Fuel Pump
Inj ector No. 1 Inj ector No. 2 Inj ector No. 3 Inj ector No. 4
Ignition SW
J unc tion
Connec tor

2005 HIGHLANDER (EWD592U)
M
2
B- R
W WW
FW
1
78
6 5
(
Cont. next page)
3 HIGHLANDER (
Cont' d)
A
B
Y W
W
B- R
W
B
Y
L
E ngine C ontrol (
2AZ- FE)
A
B
C
J
K
L
M
N
O4E E32E1E 8A 10A10 IK2
1A 6BIK2 B- W
E
B- WBATT DP
W
ABR
3
Y
B WB YL
2 1
34 E 11B- R G
A
B
C
C 21RL +B +B2 +BM
Air Conditioning Sys tem
<34- 8><35- 8>B 2E 19W
B- R
B- R
W
24 E
W- R
8E
R- W
9E
P10 E
Y- B11 E
L- Y
Ignition Coil and Igniters
<1- 3><1- 4>
Ignition Coil and Igniters
<1- 3>
MREL FC #4 #3 #2 #1 ACMG IGF1 IGT1 IGT2 IGT3 IGT4PRG
Charging Sy stem
<1- 5>
B- R
B- R
G
R- LPSW
C 10
1
G
30 E
VG29 E
EVG20 E
THA 3 1
2
R
4 5L- WL- B
2 1
E 5
18 E 6 4
21 E 31 C 3 C 22
17 C 3E2 M- M+ VTA2 VAT1 VC
(
Shielded)
GE01
BR BR G- B
VC
WB B- R
VTA1B- WYY
VTA2 M+ M- THWBR G
E02 E0 1 MOPS
W- BElec tr onic ally Controlled
Trans mis sion and A/T
Indicator System< 14- 2>
W- B
Y- BE 6 E 7
Left Side of
Cylinder BlockEF C 22
1C
FAN NO. 3 Relay
<33- 2> R- WCF
19 8STP
B
L- WE 14FAN NO. 2 Relay
<33- 3>FAN
2 1 OC 1+
C 16 15 COC 1 -
G- R G- W
B- R B- R
27 E 4 A 21 A3IO1 4IO112 BJ1 13 BJ1 BJ1
5IO118 14 BJ1
IO1 16
13 I M17IO1BJ1 164
12 IM1 15 IO1BJ1 1728139
PPMP MPMP VPMP Y
L BRB
L BRR WY RV
Y
WL
LG
Y- G SB
BR
P
BR
Elec tronic ally Cont rolled
Transmis sion and A/T
Indicator System< 14- 4>D 10 B 17 B
Y
Combination Meter
< 31- 4>SPD 9IL2Y
14 I M1
SB
I11 A
SBW5A
5B
E 28
BRE2
ST ARTER F us e
<1- 2>NSWB- RE 16
Park/Neutral Position SW
<1- 2>STABE 17 BR P
H
9A
IGSW 12 B
ST1-E
E EE
2
1
Stop Light
System< 9- 1> PP VPP
3
4D
E W- B
GR
GR6
ME01
W- BC 4
W- B
O 1
P 2
C 2
C17 T1 3
E 2
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)
S2 8(
A)
, S29(
B)
M 1
V 4
S1 5
J 6
FAN NO. 1 Relay
<33- 3>
C a ms h a f t T i mi n g
Control Valve
Charcoal Canister Assembly
Engine Coolant
Temp. Sens or
Engine Cont rol Module
Mass Air Flow MeterOil Pressure SW
Power St eer ing Oil
Pressure SW
St op Light SWShort Connect or
Throttle Control Motor
VSV (
EVAP)
Junct ion
Connect or
VG E2G THAEKR EKN EKL EKQ EKS EKP
+B E2EKM Throttle Pos ition Sens or

2005 HIGHLANDER (EWD592U)
M OVERALL ELECTRICAL WIRING DIAGRAM
2
1112
10 9
(
Cont. next page)
3 HIGHLANDER (
Cont' d)
W
B- R
B- R A
B
C
21 D 29 D24 13
BRB
5D 23D A20 13 24
31 D
B- WBRY
GRB- R
YB
C
HT 1B OX1 B HA 1 A A1 A + A 1 A- TCW- B
R
O
E ngine C ontrol (
2AZ- FE)
(
Shielded)
(
Shielded)
W
A
IM1
R- Y
IM1 3G
O1 B- IM1 6R
2D
W
25 C C24 27 C
R GL Y
(
Shielded) (
Shielded)NE+ NE- G2+
G
26 B 27 BIMO IMI
V
B
NC- NC+ NT- NT +
Electronically Controlled
Tr ans mis sion and A/T Indicator
Sy st em< 14- 5>
D 34 D 26 D 35 D 275IM1
1 2
2 1A (
Shielded) (
Shielded)
(
Shielded)
28 D
EE Intake Side of
Cylinder Block7C 7D 5A1CIM14
A A
A
18 A
E1SI L
B
(
Shielded) BR
W
W- B W- BB
FKNK1 E03 E04 TACH MPX1MPX2(
Shielded)R
R
BRBR1 AA
VWFSEA 19
KNK1
D
R Y GB
24 AENG+
V
Skid Control ECU with Act uator
< 15- 5>B
-SET +RES ON- OFF
Cruise Contr ol SW
LG
2 5 24 BCCS NEO
A 17 TRC-
A 31 TRC+
A 25 ENG-
A 30B
26 A 22 A 28 A 27 A 23 A 29 A
VCPA VPA EPA VCP2 VPA2 EPA2 EPA2 VPA2 VCP2 EPA VPA VCPA
231564
BRWL R B G Sk i d Con t ro l ECU
with Actuator
<15- 6>
BV V
(
Shielded)
D O
V
E
15 A
W- BEOM
G
H W- BB
Cruise Control (
2AZ- FE)
29 B 18 B
Multiplex
C ommun i cat i on
System (
BEAN Bus)
<20- 3>
D
E
GELS2
A 12Voltage Inv ert er
< 27- 4>
W- B
GRGR
(
Shielded)
F
A
A
CA NCE L17 IM1 BR
BR
O
BR O
R
1
4
(
*1)
* 1 : w/ Rear Seat Entertainment System
H10A 6 C 7
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)
K 1
C16 J16
A27 J 7
C 1
Air Fuel Ratio Sens or
(
Bank 1 Sens or 1)
Ac cel Pos ition Sens or
Ca ms ha f t
Position Sensor
Cr ank shaft
Position SensorCombination SW
Engine Contr ol Module
Heat ed Oxy gen Sens or
(
Bank 1 Sens or 2)
Junct ion
Connect or
Junc tion
Connec tor
Knoc k Sensor
(
Bank 1)
Trans ponder Key Computer
<4- 3>
HT OX
HT AF+ +B E
+B AF-

2005 HIGHLANDER (EWD592U)
M
4I 5A14
1516
14 13
3 HIGHLANDER (
Cont' d)
W
R
V
B A
C
E
G
Cruise Control (
2AZ- FE)
SC TC BAT
SIL CG
7 4 51316
4C 6 4L 11
4N 1 4F 54L7
ICRight Cowl Side PanelR O WP
W- B
W- B W- B
B GR O
Combination Meter
< 31- 3>V
15
WFSE DO
21 IL2
W- B
4G 1B
BW- B
B9 TAC
4A 12 6 4LCA NL
A A
BR P R
W
B
P 6
CA NH12
Occupant Classification
ECU< 16- 12>
Skid Control ECU
with Actuator
< 15- 6>
TSW
Skid Control ECU
wit h Actuat or
< 15- 6> < 15- 12>
W- B
H4H 5
W- B
4G 54M1V
Transponder Key
Computer < 4- 3>
31E
1E 12
Body ECU
< 18- 3> BR O
D DO
1L 3Airbag Sensor
Assembly< 16- 9> W
FR
BF BBRight Center Pillar A A 15 BJ1
W- B W- B
W- B W- BA
Near t he Rear
Si d e Mar ker
Light RH
J19
J16
D 3
J16
Data Link Connector 3
Junction
Connector
J unc tion
Connec torJunct ion
Connect or