2001 TOYOTA HIGHLANDER engine

'05 HIGHLANDER_U (L/O 0409)
56
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
To turn on the seat heater, push the
switches (Lº switch for the left front
seat and Rº switch for the right front
seat). At this time, the indicator light
will illuminate to indicate the seat heat-
er is operating.
To turn off the seat heater, push the
switch once again.
The key must be in the ONº position to
operate seat heaters.
CAUTION
Occupants must use caution when op-
erating the seat heater because it
may make them feel too hot or cause
burns at low temperatures (erythema,
varicella). Use extra caution for;

Babies, small children, elderly per-
sons, sick persons or persons with
physical disabilities

Persons who have delicate skin

Persons who are exhausted

Persons who have taken alcohol or
drugs which induce sleep (sleeping
drug, cold remedy, etc.)
To prevent the seat overheating, do
not use the seat heater with a blan-
ket, cushion, or other insulating ob-
jects which cover the seat.
NOTICE

Do not put unevenly weighed ob-
jects on the seat and do not stick
sharp objects (needles, nails, etc.)
into the seat.

When cleaning the seats, do not
use organic substances (paint thin-
ner, benzine, alcohol, gasoline,
etc.). They may damage the heater
and seat surface.

To prevent the battery from being
discharged, turn the switch off
when the engine is not running.
Seat heaters

2005 HIGHLANDER (EWD592U)
70
Charging
10A
ECU- IG
1B 57. 5A
ALT- S
2H 1
140A ALT
2
1
F 7
LIGS B
IC Regulator A 4A2A1B1 C 21
R- B
W- L
RLR
W- L W- L
W EB2 8 EB210
W
FL MAIN
3. 0W
W
Battery
W- G
B 29
GR
MPX2GR
B 18MPX1
MPX1
A 10B 6
MPX2
IB21
IF35MPX1
8 7
MPX2
P 5
4A 5
4F 7
IB2 8
W O
VSB
OY GRBR From Power Sour ce System (
See Page 62)
B 9(
A)
, B10(
B)
G 1(
A)
, G 2(
B)
E 6(
B)
, E 9(
C)
Body ECU Engine Control ModuleFusible Link Block
Generator
Power Window Master SW
with ECU

2005 HIGHLANDER (EWD592U)
72
Charging
G2 (B) Generator
(B) 1-Ground : 13.2-14.8 volts with the engine running at 2000 rpm
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A10A42E6B42G2B40 (2AZ-FE)
A11B42E9C42G543
A1742F738 (3MZ-FE)P544
B9A42F740 (2AZ-FE)S30A43
B10B42G1A38 (3MZ-FE)S31B43
C11A42G1A40 (2AZ-FE)
C12B42G2B38 (3MZ-FE)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1B29Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel)
1G29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1K28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
2A27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)2H27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
3A
3B303C30
Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)3EInstrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3J313K31
4A33Cowl Wire and Passenger Side J/B (Right Side of Grove Box)4F33Cowl Wire and Passenger Side J/B (Right Side of Grove Box)
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
EB248 (3MZ-FE)Engine Wire and Engine Room Main Wire (Front Side of Engine Room R/B)EB250 (2AZ-FE)Engine Wire and Engine Room Main Wire (Front Side of Engine Room R/B)
IB252Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
IF352Instrument Panel Wire and Cowl Wire (Right Side of Instrument Panel J/B)
IL254Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
: GROUND POINTS
CodeSee PageGround Points Location
IB52Right Instrument Panel Brace
Service Hints

2005 HIGHLANDER (EWD592U)
74
Engine Control for 3MZ-FE
E 6
10A IGN
11
11 IC3 6
1 2
1 2
1 2
1 2
1 2
1 2
5 4 23 15
BCG
B- W
W
B
Y
L
BR L W- BR
R R R R R R
G B- WWB YL
YCIRCUIT OPENING
Relay I 8
I 9
I10
I11
I12
I13
W- B 1 5
2 32 25A
A/F
2 2
P
A/F Relay
Y P- L
G
P- L
2
B W- BW P4M 4
4E 1
15A IG2
1G 9
LG
1G 6
M EB1 5
R2
W- B R- W
2
W
P
B
E E
J 3
P
R- W E
P
4F 1
W
IA2 8 Fr om Power Source System (
See Page 62)
Injector No. 1
Injector No. 2
Injector No. 3
Injector No. 4
Injector No. 5
Injector No. 6
Ju nctio n
Connector
Fuel Pump F12

2005 HIGHLANDER (EWD592U)
75
7
2B 2G 5
2F 42B8 23 15
D 3E5E4 A 1A3
EH20A
EFI NO. 1
B- R G
B- W
W
B
Y
L
G
3
BRW W- B
B- W
W W- B
EFI Relay
+B BATT
#60 #50 #40 2A 7
W- B
MREL
A 8
P Y P- L
B 2DB- W
A 2B
P- L
5
W- BA 9IGSW
Y
A 10FC
W
IC2 2
B W
IK3 13
B
EB1 1
Y
I 7
B- R B- W J 2
IK2 11
B- W
A 2
+B2
W
E14 10A
EFI
NO. 22
22B4
W
W
2 12 1
ACM
B- W V 5
Y- G
C 6
B
7 EB2 P
Y
L BR- W
B- R
P
IK2 10
W
B- R
B- R
B- W
B
BRBR
R- WP
From Power Source System (
See Page 62)
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)
Engine Control Module
Junction
Connector
VSV (
ACM)

2005 HIGHLANDER (EWD592U)
76
Engine Control for 3MZ-FE
14 BJ1 I 9
2
18 BJ1 IM1
5IO1 2
E 3E2E1E 16
B
Y
L
NSW
#30 #20 #10
B- R
E 17
STA
B
R- W
516 IO1
RR
V14
B
4
NPGR
R
W- B BR BR
P
12
IM1
V
7. 5A
STARTER
W- B
E147IO1
L- B
THA1E14 E14B- R
4 20 E20A
STOP
1E 1
2 1
2 1
E 29 E 30
5 1 32
B- R B- R
E2G VGPRG ACIS STP
G R- Y BR Y
B- R B- R L- WR B- R
E14I 6
1 2C 2E21 E18 E 19
16 5Y VTA1 VC THW
LG- B
Y R- WW
YV 2S15
M 1
T13
W- B
W- B
W- B
C 8
FAN NO. 1 Relay
CF E 34 E 15 B 19
IM1 13 2
4M 124L 3 IC1
L- W
M-
B- R
1 2
CCVE 27SB L
R- Y
15
IO1
B
EB2 3425
10A
ETCS
W
+BM 6B2
Y
LE 7
B- R L B- R P 1
GR B- RGR
R- W
16 BJ1 B
B- R
B- R
BR
E14 BRBR
B 5
A 5E 28E2
BR BR
BP P
5 EB2
BR BR E 31
4 VTA2
B- R
C 3
2
B
M+
3E2 M+ M- VTA1 VTA2 VC C 17GE0 1
(
*1)
IM1 14
L
BI1 3
BJ117
BR Fr om Power Source System (
See Page 62)
FAN NO. 2 Relay
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)
S28(
A)
, S29(
B)
Engine Control Module
Mass Air Flow
Meter
Park/Neutral
Position SW
Stop Light SW
Short Connector
Throttle Control Motor
VSV (
ACIS No. 2)
VSV
(
Canister Closed Valve) VSV (
EVAP) V 4 Engine Coolant Temp.
Sensor E 2
VG E2G THA
+B E2
Throttle Position Sensor

2005 HIGHLANDER (EWD592U)
77
T14IM1 2
1BI1
G- R
1
L
27
Y
12 BJ1(
*1) R- W R- W
A 21C 10
1
3A
VCP24 2
21 3
PSWHT1B OX1B
R- WL
BR
B
VPA2A
WBR
23
H10 W B
D 25 D21
R- Y
W
B 26 B 27
67IMO IMI
V B
W- R
IGF1
24 E3 1
2
2 1C 16 C15
2 1C 14 C13 1
2
G- W
L- R G- R
G- B
OC1+ OC1- OC2+ OC2-
W
R
NT+D 27
NT-D 35
NC+D 26
NC-D 34
W- G R- W
Ignition Coil and Igniters
EFIO EFIIB 2ACMG
O
MG CLT Relay
PTNK
IO1 3 GR
IM1 2
6IM1 * 1 : Shielded
3
(
*1)BR BR
29 A
EPA2
B
22 A
VPA EPAA 28
R
B- R
156 EPA2 VPA2 VCP2 EPA VPA
G
26 A
VCPA4 VCPA A27
3 14 2
HT2B OX2B
BR B- R
D 33 D29
W- L
B
E14(
*1)
BR
(
*1)
P P
A 12ELS2
G
IA1 7
5
EXCD
BR BR
GR H 6
BI1 2
Y
G
(
*2)(
*2)
* 2 : w/ Rear Seat Entertainment System
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C) Accel Position Sensor
Engine Control Module
Heated Oxygen Sensor
(
Bank 2 Sensor 2)
Heated Oxygen Sensor
(
Bank 1 Sensor 2)
Transponder Key
Computer
Tur bine Speed Sensor T 3
Counter Gear Speed
Sensor C 6
Voltage Inverter V15 Power Steering Oil
Pressure SW P 2 Camshaft Timing Oil
Contr ol Valve LH C 3 Camshaft Timing Oil
Contr ol Valve RH C 4 Vapor Pressure Sensor V11
+B E1 E2 +B
HT OX HT1B OX1B
PTNK
VCC GND

2005 HIGHLANDER (EWD592U)
78
Engine Control for 3MZ-FE
G 14C RL
21
L
W- G
E16
6 EB1
A2A-
P
EB1
D 5D43 14 2 (
*1)
(
*1) (
*1) (
*1)
HA1A A2A+
R- W B- R
(
*1) (
*1)
A 7
HA2A A1A- A1A+ 3
D 22 D30
BR
Y
D 23 D31
L
R- W
R- L
IGT1
8E
P
IGT2
9E
Y- B
IGT3
10 E
L- Y
IGT4
11 E
G- Y
IGT5
12 E
L- R
IGT6
13 E
Ignition Coil
and Igniters
G
TRC+
31 A
Y
TRC-
25 A
Skid Control ECU
with Actuator
R- W R- W(
*1)
V 7
L
(
*1)
(
*1) (
*1)
2 1
(
*1)
2
1
V 6
C 7
6D
I 6 E05I 6
26 C
L
R
I 6
ECE 6C7 E 7 C 22E04
7
ED D
W- B
W- B
W- B
GGR
MOPS E01 E02 E03
(
*1)
B- W W- B W- B
W- B
G
C 25 C24 C27
(
*1)
1
O 1
Y- B
VV2+ NE+ NE- VV1+2
1 3 14 2
B- W B- RA 6
(
*1)R- W
BRP P
C 4
W- B
ME01
I 6
W- B
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)
Air Fuel Ratio Sensor
(
Bank 1 Sensor 1)
Air Fuel Ratio Sensor
(
Bank 2 Sensor 1)
Crankshaft Position
Sensor
Engine Control Module
Generator
Oil Pressure SW
VVT Sensor LH
VVT Sensor RH
HT AF+ HT AF++B AF- +B AF-