engine TOYOTA HIGHLANDER 2001 Service Repair Manual

2005 HIGHLANDER (EWD592U)
203
4H 11 4G 9D 7GND1
D DB 2KSW
1 2
G G W- B
W- BJ 6 K 4
32A10A
DOME
IK3 12
4H 6
4D 9
BF IK3 14
3IK3
4M 3
4N 1
IC 74L2 1C 15
R V L- Y W W- B W- B W- B
W- B
W- B
A
W 5
BZR C 16 C17
RDA PRGIO2 14 IO215
GR
YSB
BR
1 3 25B
IO2 10
W- B
+B RDA PRG E* 4 : w/ Engine Immobilizer System
* 5 : w/o Engine Immobilizer System
ILE
D 11
BR
4D 13 4D12
IE1 1
WB
21
OFF
ON DOOR
5IE1
R G
4H 1
4F 24J 5
BR
2
61 2
I16
T 7
I14 GY
Y G(
*4)
(
*5) (
*5) (
*4)
W 6
R D D
J18 B
B 1
W
B 1
R
+B1
112
7
4D 5
4M 6
1E 4
1D 14
IA
W- B W- B
W R W- B
GND CTYO 5
J19
W- B
A A W- B W- BW- B
IE18B 13
W- B
W- B
W- B
B 9(
A)
, B10(
B)
, B11(
C)
, B12(
D)From Power Source System (
See Page 62)
Ignition Key
Cylinder
Illumination
Body ECU
Ignition Key Cylinder
Illumination Interior LightJunction
Connector
Junction
Connector
Junction
Connector
Unlock Warning SW
Overhead J/B
Transponder Key Amplifier Wireless Door Lock Buzzer
Wireless Door Lock ECU

2005 HIGHLANDER (EWD592U)
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Wireless Door Lock Control
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1D
1E29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1G29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1H
1J28Instrument Panel 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)
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)
3H313J31
4A
4D
4F33
4G
4HCowl Wire and Passenger Side J/B (Right Side of Grove Box)
4J
g(g )
4L324M32
4N
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IA152Cowl Wire and Floor No 2 Wire (Left Kick Panel)IA252Cowl Wire and Floor No.2 Wire (Left Kick Panel)
IB152Front Door LH Wire and Cowl Wire (Left Kick Panel)IB252Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
IE152Roof Wire and Cowl Wire (Near the Bottom of Left Front Pillar)
IF352Instrument Panel Wire and Cowl Wire (Right Side of Instrument Panel J/B)
IK254Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)IK354Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)
IL154Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)IL254Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
IN154Front Door RH Wire and Cowl Wire (Right Kick Panel)IN254Front Door RH Wire and Cowl Wire (Right Kick Panel)
IO254Cowl Wire and Floor Wire (Right Kick Panel)
BB156Rear Door No.1 LH Wire and Floor No.2 Wire (Left Center Pillar)
BC156Rear Door No.1 RH Wire and Floor Wire (Right Center Pillar)
BG256Back Door No 1 Wire and Floor No 2 Wire (Rear Left of the Roof)BG356Back Door No.1 Wire and Floor No.2 Wire (Rear Left of the Roof)
BH156Floor No.2 Wire and Floor Wire (Near the Rear Side Marker Light RH)

2005 HIGHLANDER (EWD592U)
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Theft Deterrent System
IF1 2IC3 4
WL
15A
SECURITY
2A 5
L
3
+B2IL2 18
P
12
KSW D D
GG
2 1
1 2
IL2 6IK3 15
G W
34
DSWH
G- B
10A
ECU- IG
1K 9
3A 1
3E 5
R G
10
IG IL2 17
Y SB
15
L BG3 9
V
IA2 14
BR
IL2 8
LG BR
33
UL BG2 4
B
IA2 4
Y
BE A
W- B
EG A
W- B
4G 9
4N 1
W- B W- B
4L 7
IC
W- B
3J 11
W- B
2 3
Y
11
O
IOUT
IF3 17
IC3 2
V LG B B- O
13C 8
3B 2
R B
31MPX1
1SH-
25IND
1 2
3F 11
W- B
3D 5
3F 13
W- B W- B
29E
W- B
IB J1 4
T 5 T 1
E 3
K 4 J 6
W- B W- B
2+B1
I11
1
O
IL1 11
PV
P T 4 1 23
BR
Y
B14 W- B
IOUT S+B
GND
O 4O
J 1Battery
B
B 140A ALT
2
1
F 7
W
FL MAI N
3. 0WFrom Power Source System (
See Page 62)
Back Door Key Lock and
Unlock SW
Engine Hood
Courtesy SW Fusible Link Block
Junction
ConnectorJunction
Connector
Ju nctio n
Connector
Unlock Warning SW
Option Connector 2
Theft Deterrent Horn
Theft Deterr ent ECU
Theft Deter rent
Indicator Light

2005 HIGHLANDER (EWD592U)
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25A
DOOR
LOCK From Power Source System (
See Page 62)
2A 27. 5A
RAD
NO. 2
1J 6 10
IK2 83A 8 3A 10
3C 6 3B 5
61H
BECU 9D1K
R- B
W B
B BRG
A 5
IGA 17
ACC D 4
BDR1 42A
1D 3
IB2 2IB2 3
IB1 3IL1 8
IF3 5
IB2 1
4F 7A 10MPX2
IB2 8
920 107
W- L
R- L L- W
GR VBR
WY V
Y SB
O
CPUB SIG BDRMPX2 MPX1
IB1 2
4L 8
4L 10 1D 144M 6 1E 4
IA
W- B
W- B W- B
W- BIB1 5IB14 B BIA2 13 D 1ACT+
D 2ACTD
56
D12 414 316
4321
G
Y
LG
BR
W
RL
BRL
L
BB
2
LG
L
IN12
W- B W- B GND KL KUL LSWE LSW
BR
IC3 5
1G 10
W- L BR
7. 5A
IG1
1D 1
P 5 20A
P FR
DOOR
1K 6
4A 5 IL2 1
A 21B 9
SB
B 2A 9
G
R
GIL2 12 6B MPX+
G
GR
MPX- MPX-
MPX+
UL E LSSR L UL
M 7. 5A
ECU- B
1D 9
P
V
PB B
* 1 : w/ Navigation System
* 2 : w/o Navigation System
E E
P
B 1B2 A 1A2
BR
3J 123E 1
3H 5
Y
MPD1 MPD2
G 5
11 4
V
V
(
*1)
(
*2) G
(
*1)W
MPX1
E 618 29
MPX2
MPX1
W
8
W- B
GR
B 9(
A)
, B10(
B)
, B11(
C)
, B12(
D)
C11(
A)
, C12(
B)
A10(
A)
, A11(
B)
A/C Control AssemblyBody ECUCombination Meter
Door Key Lock and Unlock SW Front LH
Door Lock Motor Front LH
Door Unlock Detection SW Front LH
Engine Control Module
Gateway ECU
Power Window Master SW
with ECU
Junction
Connector J17
Junction
Connector J 5
MPX1 MPX2
Airbag Sensor
Assembly A17Short
Connector S30(
A)
, S31(
B)22 24
BR BR

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Theft Deterrent System
E3 Engine Hood Courtesy SW
1-2 : Closed with the engine hood open
T4 Theft Deterrent ECU
3-Ground : Always approx. 12 volts
10-Ground : Approx. 12 volts with the ignition SW at ON position
2-Ground : Always approx. 12 volts
29-Ground : Always continuity
K4 Unlock Warning SW
2-1 : Closed with the ignition key in the cylinder
D12 Door Key Lock and Unlock SW,Door Lock Motor and Door Unlock Detection SW Front LH
5-Ground : Approx. 12 volts with the door lock motor at lock operate
6-Ground : Approx. 12 volts with the door lock motor at unlock operate
4-2 : Closed with the door lock cylinder locked with key
3-2 : Closed with the door lock cylinder unlocked with key
D13 Door Key Lock and Unlock SW,Door Lock Motor and Door Unlock Detection SW Front RH
1-Ground : Approx. 12 volts with the door lock motor at lock operate
2-Ground : Approx. 12 volts with the door lock motor at unlock operate
3-5 : Closed with the door lock cylinder locked with key
4-5 : Closed with the door lock cylinder unlocked with key
D14 Door Lock Motor and Door Unlock Detection SW Rear LH
3-Ground : Approx. 12 volts with the door lock motor at lock operate
4-Ground : Approx. 12 volts with the door lock motor at unlock operate
D15 Door Lock Motor and Door Unlock Detection SW Rear RH
1-Ground : Approx. 12 volts with the door lock motor at lock operate
2-Ground : Approx. 12 volts with the door lock motor at unlock operate
B15 Back Door Lock Motor and Back Door Unlock Detection SW
1-Ground : Approx. 12 volts with the door lock motor at lock operate
2-Ground : Approx. 12 volts with the door lock motor at unlock operate
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A10A42D1144J1344
A11B42D1244J1444
A1742D1344J1643
B9A42D1444J1743
B10B42D1544K443
B11C42E338 (3MZ-FE)O443
B12D42E642P544
B1444F738 (3MZ-FE)R1245
B1544F740 (2AZ-FE)S30A43
C11A42G543S31B43
C12B42J139 (3MZ-FE)T139 (3MZ-FE)
D342J141 (2AZ-FE)T443
D744J543T543
D844J643T743
D944J1044T843
D1044J1244
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
323Engine Room R/B No.3 (Engine Compartment Rear Left)
Service Hints

2005 HIGHLANDER (EWD592U)
213
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1A29Engine Room Main Wire and Instrument Panel J/B (Lower Finish Panel)
1D
1E29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1G29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1H
1J28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)1K28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
2A
2B27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2G
gg(g)
3A
3B
3C303D30
Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)3EInstrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3F
3H313J31
4A
4D
4F33
4G
4HCowl Wire and Passenger Side J/B (Right Side of Grove Box)
4J
g(g )
4L324M32
4N
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IA152Cowl Wire and Floor No 2 Wire (Left Kick Panel)IA252Cowl Wire and Floor No.2 Wire (Left Kick Panel)
IB152Front Door LH Wire and Cowl Wire (Left Kick Panel)IB252Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC252Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
IF152Instrument Panel Wire and Cowl Wire (Right Side of Instrument Panel J/B)IF352Instrument Panel Wire and Cowl Wire (Right Side of Instrument Panel J/B)
IK254Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)IK354Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)
IL154Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)IL254Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
IN154Front Door RH Wire and Cowl Wire (Right Kick Panel)IN254Front Door RH Wire and Cowl Wire (Right Kick Panel)
IO254Cowl Wire and Floor Wire (Right Kick Panel)
BB156Rear Door No.1 LH Wire and Floor No.2 Wire (Left Center Pillar)
BC156Rear Door No.1 RH Wire and Floor Wire (Right Center Pillar)
BG256Back Door No 1 Wire and Floor No 2 Wire (Rear Left of the Roof)BG356Back Door No.1 Wire and Floor No.2 Wire (Rear Left of the Roof)
BH156Floor No.2 Wire and Floor Wire (Near the Rear Side Marker Light RH)

2005 HIGHLANDER (EWD592U)
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Theft Deterrent System
: GROUND POINTS
CodeSee PageGround Points Location
EG48 (3MZ-FE)Under the Left HeadlightEG50 (2AZ-FE)Under the Left Headlight
IA52Left Cowl Side Panel
IB52Right Instrument Panel Brace
IC52Right Cowl Side Panel
BA56Left Center Pillar
BB56Right Center Pillar
BE56Left Side of Back Door
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E1048 (3MZ-FE)Engine Room Main WireI1154Instrument Panel WireE1050 (2AZ-FE)Engine Room Main WireB456Front Door RH Wire

2005 HIGHLANDER (EWD592U)
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Moon Roof
20A
S/ROOF
1H 8
IC2IE1
W- B
W L
W- B
S20
7 1 5
1E 4
1D 14
M Moon Roof Motor
Limit SW
No. 2
Limit SW
No. 1
IA
W- B
4D 5
4N 1 4M 6
W- B
W- B
W- B
ECUB B
E 7. 5A
ECU- B
2A 4
W- L
BR
1G 10
1D 9
E E
3IE1
BR
P P B
J17
4L 7
W- BIE1 8
Y
10
GR
I 8
GR
C12
MPX2 MPX+
MPX1 29 E 6
9
IL21
SB
GR
IG3
8117. 5A
IG1
1D 2
IE1 4V
4 UP
GR
6IG 9
DOWN
IG 6 9
UP DWNO 5
G
W
RGN D
1
B 1
W- B
W- BW- B IE1 6IC3 5From Power Source System (
See Page 62)
Combination MeterEngine Control
Module
Junction
Connector
Overhead J/B
Sliding Roof Control ECU

2005 HIGHLANDER (EWD592U)
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The moon roof can be operated when the ignition SW is turned to ON position.
1. Slide Open Operation
The moon roof fully opens automatically by pressing the SLIDE OPEN button of the overhead J/B once. If the sliding roof
control switch is pressed again when the moon roof is operating, the movement of the moon roof stops.
The operation of SLIDE OPEN is not worked when the moon roof at TILT UP position.
2. Slide Close Operation
If you keep pressing the TILT UP button of the overahead J/B when the moon roof is open, the moon roof closes half and
stops the operation once. If you keep pressing the TILT UP once again, the moon roof fully closes.
3. Tilt Up Operation
If you press the TILT UP button of the overhead J/B, the moon roof is tilted up. However, the moon roof is not tilted up when
it is open
4. Tilt Down Operation
If you press the SLIDE OPEN button when the TILT UP of the overhead J/B is pressed, the moon roof is tilted down.
5. Key Off Moon Roof Operation
When the ignition SW is turned from ON position to OFF or ACC position, the moon roof can be operated within about 40
seconds. However, even if it is within about 40 seconds, the moon roof can not be operated when each of the front doors
opens.
S20 Sliding Roof Control ECU
5-Ground : Always approx. 12 volts
1-Ground : Approx. 12 volts with the ignition SW at ON position
7-Ground : Always continuity
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
C1242J1743S2045
E642O544
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1D
1E29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1G29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1H
2A27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
4D33
4LCowl Wire and Passenger Side J/B (Right Side of Grove Box)4M32Cowl Wire and Passenger Side J/B (Right Side of Grove Box)
4N
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
IE152Roof Wire and Cowl Wire (Near the Bottom of Left Front Pillar)
IL254Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
: GROUND POINTS
CodeSee PageGround Points Location
IA52Left Cowl Side Panel
IC52Right Cowl Side Panel
System Outline
Service Hints

2005 HIGHLANDER (EWD592U)
221
With the ignition SW turned on, the current flows to TERMINAL 17 of the front wiper and washer SW, TERMINAL 2 of the
front wiper motor through the WIPER fuse, the current flows to TERMINAL 1 of the washer motor through WASHER fuse.
1. Low Speed Position
With the wiper SW turned to LOW position, the current flows through TERMINAL 17 of the front wiper and washer SW to
TERMINAL 7 to TERMINAL 1 of the front wiper motor to TERMINAL 5 to GROUND and causes the wiper motor to run at low
speed.
2. High Speed Position
With the wiper SW turned to HIGH position, the current flows through TERMINAL 17 of the front wiper and washer SW to
TERMINAL 8 to TERMINAL 4 of the front wiper motor to TERMINAL 5 to GROUND and causes the wiper motor to run at
high speed.
3. INT Position
With the wiper SW turned to INT position, the relay operates and the current which is connected by relay function flows
through TERMINAL 17 of the front wiper and washer SW to TERMINAL 2 to GROUND. This flow of current operates the
intermittent circuit and the current flows through TERMINAL 17 of the front wiper and washer SW to TERMINAL 7 to
TERMINAL 1 of the front wiper motor to TERMINAL 5 to GROUND and the wiper functions.
The intermittent operation is controlled by a condenser's charged and discharged function installed in the relay and the
intermittent time is controlled by a time control SW to charge the charging time of condenser.
4. Washer Continuous Operation
With the washer SW pulled to on, the current flows through TERMINAL 1 of the washer motor to TERMINAL 2 to TERMINAL
11 of the front wiper and washer SW to TERMINAL 2 to GROUND and causes the washer motor to run and the window
washer to jet. This causes the current to flow to washer continuous operation circuit in TERMINAL 17 of the front wiper and
washer SW to TERMINAL 7 to TERMINAL 1 of the front wiper motor to TERMINAL 5 to GROUND and the wiper functions.
C14 Combination SW
2-Ground : Always continuity
17-Ground : Approx. 12 volts with the ignition SW at ON position
7-Ground : Approx. 12 volts with the front wiper and washer SW at LOW position
Approx. 12 volts 2 to 11 seconds intermittently with the front wiper and washer SW at INT position
16-Ground : Approx. 12 volts with the ignition SW on unless the front wiper motor at STOP position
8-Ground : Approx. 12 volts with the front wiper and washer SW at HIGH position
F6 Front Wiper Motor
2-3 : Closed unless the front wiper motor at STOP position
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
C1442F640 (2AZ-FE)F1440 (2AZ-FE)
F638 (3MZ-FE)F1438 (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)
1D29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1E29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
4C33Cowl Wire and Passenger Side J/B (Right Side of Grove Box)4M32Cowl 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)
IC252Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
IK354Engine Room Main Wire and Cowl Wire (Right Cowl Side Panel)
System Outline
Service Hints