engine TOYOTA HIGHLANDER 2001 Service Repair Manual

2005 HIGHLANDER (EWD592U)
166
Cruise Control for 3MZ-FE
CCS
LG
AG
SB
B A
MPX1
W
R
10
MPX2
GR
MPX2
VGR Y
29 B MPX1 6
A17
2B IB2 8 IB2 1
IF3 5
O
7
8 MPX1
MPX2
P 5
MPX+ B
Y
SPD
17 B
IL2 9
Y
2B1
A 1 A 2
BR
24
MPX1
BR
22
MPX2
G V
4
11MPD1
MPD2
G 5
IL2 12SB
74F 54A
MPX-
G
9
Y IL2 1
SB
(
*1) (
*1)
G
(
*2)
+RES
- SET
CANCELCCS ECC 45
C16
24 B
ON- OFF IM1 17O
BR
GR
18 B
BR
Cruise Contr ol SW
R
* 1 : w/ Navigation System
* 2 : w/o Navigation System
B 9(
A)
, B10(
B)
S30(
A)
, S31(
B)
A10(
A)
, A11(
B)
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)A/C Contr ol
Assembly
Airbag Sensor Assembly
Body ECU Combination SW
Engine Control Module
Gateway ECU Power Window Master SW
with ECU
Short Connector
BR- R BR- R

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Cruise Control for 3MZ-FE
The cruise control system is a constant vehicle speed controller in which control of the switch on the instrument panel makes
it possible to automatically adjust the opening of the engine throttle valve without depressing of the accel pedal.
1. Set Operation
When the ON-OFF SW is turned on, the system starts preparations necessary for the cruise control and turns on the
indicator light in the combination meter.
2. Set Speed Control
When the - SET SW is operated with the ON-OFF SW turned on during travelling, the constant vehicle speed is controlled.
3. Coast Control
When the - SET SW is kept turned on during cruise control travelling, the engine control module controls the throttle valve to
decelerate the vehicle. Every time the - SET SW is turned on instantaneously, the vehicle speed is decelerated
approximately 1.5 km/h.
4. Accel Control
When the + RES SW is kept turned on during cruise control travelling, the engine control module controls the throttle valve to
accelerate the vehicle. Every time the + RES SW is turned on instantaneously, the vehicle speed is accelerated
approximately 1.5 km/h.
5. Resume Control
When the vehicle speed is within the low speed limit (Approximately 40 km/h, 25 mph) if the cruise control is cancelled, use
of the + RES SW accelerates the vehicle to the speed level used before canceling the cruise control.
6. Manual Cancel Mechanism
If any of the following signals is input during cruise control travelling, the cruise control is cancelled.
*The stop light SW is turned on.
*The CANCEL SW is turned on.
*The ON-OFF SW is turned off.
*Gear is shifted from D position to other positions than D.
7. Auto Cancel Function
If any of the following conditions is encountered, the cruise control is automatically cancelled.
*The stop light SW wiring is faulty or short-circuited.
*The vehicle speed signal is faulty.
*The electronically controlled throttle malfunctions.
8. Overdrive Control Function
The overdrive control may be cancelled if the vehicle travels on the slope during cruise control travelling. After the overdrive
control has been cancelled, when climbing hill is judged to finish from throttle opening information, the vehicle returns to the
overdrive control mode again after the overdrive return timer is completed.
E5 (A), E6 (B), E7 (E), E8 (D), E9 (C) Engine Control Module
(A) 9-Ground : Approx. 12 volts with ignition SW at ON or ST position
(A) 3, (B) 6-Ground : Always approx. 12 volts
(C) 1, (C) 7, (D) 6, (D) 7, (E) 6, (E) 7-Ground : Always continuity
(B)19-Ground : Approx. 12 volts with brake pedal depressed
(B)24-Ground : Continuity with ON-OFF SW at on in cruise control SW
Approx. 1540 W with CANCEL SW on in cruise control SW
Approx. 240 W with + RES SW on in cruise control SW
Approx. 630 W with - SET SW on in cruise control SW
C16 Combination SW
5-4 : Approx. 1540 W with CANCEL SW on
Approx. 240 W with + RES SW on
Approx. 630 W with - SET SW on
System Outline
Service Hints

2005 HIGHLANDER (EWD592U)
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: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A10A42E238 (3MZ-FE)P139 (3MZ-FE)
A11B42E5A42P544
A1742E6B42S1543
A2742E7E42S2739 (3MZ-FE)
B9A42E8D42S28A43
B10B42E9C42S29B43
C11A42G543S30A43
C12B42J239 (3MZ-FE)S31B43
C1642J643T1339 (3MZ-FE)
D342J743
E138 (3MZ-FE)J1643
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
222Engine Room R/B (Engine Compartment Left)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1E29Cowl 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)
2A
2B27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2F
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
3J313K31
4A
4D
4E33
4FCowl Wire and Passenger Side J/B (Right Side of Grove Box)
4H
g(g )
4L324M32
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IB252Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC1
IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
IC4
g()
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)
IL254Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
IM154Engine Wire and Cowl Wire (Right Kick Panel)

2005 HIGHLANDER (EWD592U)
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Cruise Control for 3MZ-FE
: GROUND POINTS
CodeSee PageGround Points Location
EC48 (3MZ-FE)Left Side of Cylinder Head
ED48 (3MZ-FE)Rear Side of Cylinder Head
EH48 (3MZ-FE)Under the Left Headlight
IB52Right Instrument Panel Brace
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E1448 (3MZ-FE)Engine WireI754Cowl Wire
I654Engine Wire

2005 HIGHLANDER (EWD592U)
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Cruise Control for 2AZ-FE
1 9 4 3 7 2 8
G- YW P- L
+B BATT20A
EF1 NO. 1
B- W W- B
L
Y- R
B- Y
Y- G
L- Y
L- R
23 15
2B 4 2F 4 2B 52B7
Y
W
IK2 10 IK21110A
IGN
1G 6 20A
STOP
1E 1
4E 1
B BR
P
I 74M 4
EH1 2
4M 124L 3
1A A3A 9 B 19
A 8
BRW
D 11 D13 D9D15 D32 D 12 D14
E10SL1- SL1+
18 D 19 D
B- WR- B
510IGSW STP
A
J 2MREL S4 SLT+ SLT- DSL SL2+ SL2-
W- B
THO
S15
EFI
Relay
IK3 13
B
B
E
E
R
O
G
G
Y
BR
O
+B2 2A
WW
P W
B
O
E
P V
B 12
ST1-4 3
R
10A
ETCS
2
W
B 6
+BMIC1 42 1
L- W
R
21G7. 5A
IG1
B 10
D 8IM1IM1 10
R Y
2
J 6P 1
BR THO SL1- SL1+ SL2- SL2+ DSL SLT- SLT+ S4
6 E2 7 D 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
Electronically Controlled Transmission Solenoid
Junction
Connector
Junction
ConnectorA/T Indicator SW
Stop Light SW

2005 HIGHLANDER (EWD592U)
173
BR BR
W- B
W- B W- B
BR G- BY
7C
EF EE6E 4C 1CD 7E03
W- B W- B
A
A
BR
B- R
VC
3 5
VTA2
1 2
E 9 E 28 E18 E19
VTA
BRE 2
4 E2 VC THW E04 E1ME01 E02
E 31VTA2
B- W
6E 21VTA1
BR
A 5B 5
E2
W- B
W- B W- BL
27 A
VCP2 VPA2A 23
W
23
BR
29 A
EPA2
B
22 A
VPA EPAA 28
R
156 EPA2 VPA2 VCP2 EPA VPA
G
26 A
VCPA4 VCPA A27
ENG+ NEOA 17 A24
ENG-A 30
B
V
R
TCA 20
O
D DJ16D 3
O
13TC
10 9 23 8 22NEO ENG+ ENG- TRC+ TRC- S27
IC4 3IC45IC418 IC47IC419
TRC+A 25
Y
TRC-A 31
GV
W- L
W- G
G- B
Y- B
C 2
1
W
M-
C 3
2
B
M+
M+ M- C 17GE0 1
(
Shielded)
J 7
BR A
BR
BRBR
7EE01
W- B
I 6 E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)S28(
A)
, S29(
B)
Accel Position Sensor
Data Link
Connector 3 Engine Coolant Temp. Sensor
Engine Control Module
Junction
ConnectorJunction
Connector
Skid Control ECU with Actuator
Shor t Connector
Throttle Control Motor T13
Throttle Position Sensor12
SP1
BR- R
BR- R

2005 HIGHLANDER (EWD592U)
174
Cruise Control for 2AZ-FE
CCS
LG
AG
SB
B A
MPX1
W
R
10
MPX2
GR
MPX2
VGR Y
29 B MPX1 6
A17
2B IB2 8 IB2 1
IF3 5
O
7
8 MPX1
MPX2
P 5
MPX+ B
Y
SPD
17 B
IL2 9
Y
2B1
A 1 A 2
BR
24
MPX1
BR
22
MPX2
G V
4
11MPD1
MPD2
G 5
IL2 12SB
74F 54A
MPX-
G
9
Y IL2 1
SB
(
*1) (
*1)
G
(
*2)
+RES
- SET
CANCELCCS ECC 45
C16
24 B
ON- OFF IM1 17O
BR
GR
18 B
BR
Cruise Contr ol SW* 1 : w/ Navigation System
* 2 : w/o Navigation System
R S30(
A)
, S31(
B) B 9(
A)
, B10(
B)
E 5(
A)
, E 6(
B)
, E 7(
E)
, E 8(
D)
, E 9(
C)A10(
A)
, A11(
B)
A/C Contr ol
Assembly
Airbag Sensor Assembly
Body ECU Combination SW
Engine Control Module
Gateway ECU Power Window Master SW
with ECU
Short Connector
BR- R
BR- R

2005 HIGHLANDER (EWD592U)
176
Cruise Control for 2AZ-FE
The cruise control system is a constant vehicle speed controller in which control of the switch on the instrument panel makes
it possible to automatically adjust the opening of the engine throttle valve without depressing of the accel pedal.
1. Set Operation
When the ON-OFF SW is turned on, the system starts preparations necessary for the cruise control and turns on the
indicator light in the combination meter.
2. Set Speed Control
When the - SET SW is operated with the ON-OFF SW turned on during travelling, the constant vehicle speed is controlled.
3. Coast Control
When the - SET SW is kept turned on during cruise control travelling, the engine control module controls the throttle valve to
decelerate the vehicle. Every time the - SET SW is turned on instantaneously, the vehicle speed is decelerated
approximately 1.5 km/h.
4. Accel Control
When the + RES SW is kept turned on during cruise control travelling, the engine control module controls the throttle valve to
accelerate the vehicle. Every time the + RES SW is turned on instantaneously, the vehicle speed is accelerated
approximately 1.5 km/h.
5. Resume Control
When the vehicle speed is within the low speed limit (Approximately 40 km/h, 25 mph) if the cruise control is cancelled, use
of the + RES SW accelerates the vehicle to the speed level used before canceling the cruise control.
6. Manual Cancel Mechanism
If any of the following signals is input during cruise control travelling, the cruise control is cancelled.
*The stop light SW is turned on.
*The CANCEL SW is turned on.
*The ON-OFF SW is turned off.
*Gear is shifted from D position to other positions than D.
7. Auto Cancel Function
If any of the following conditions is encountered, the cruise control is automatically cancelled.
*The stop light SW wiring is faulty or short-circuited.
*The vehicle speed signal is faulty.
*The electronically controlled throttle malfunctions.
8. Overdrive Control Function
The overdrive control may be cancelled if the vehicle travels on the slope during cruise control travelling. After the overdrive
control has been cancelled, when climbing hill is judged to finish from throttle opening information, the vehicle returns to the
overdrive control mode again after the overdrive return timer is completed.
E5 (A), E6 (B), E7 (E), E8 (D), E9 (C) Engine Control Module
(A) 9-Ground : Approx. 12 volts with ignition SW at ON or ST position
(A) 1, (B) 6-Ground : Always approx. 12 volts
(C) 1, (C) 7, (D) 6, (D) 7, (E) 6, (E) 7-Ground : Always continuity
(B)19-Ground : Approx. 12 volts with brake pedal depressed
(B)24-Ground : Continuity with ON-OFF SW at on in cruise control SW
Approx. 1540 W with CANCEL SW on in cruise control SW
Approx. 240 W with + RES SW on in cruise control SW
Approx. 630 W with - SET SW on in cruise control SW
C16 Combination SW
5-4 : Approx. 1540 W with CANCEL SW on
Approx. 240 W with + RES SW on
Approx. 630 W with - SET SW on
System Outline
Service Hints

2005 HIGHLANDER (EWD592U)
177
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A10A42E5A42P141 (2AZ-FE)
A11B42E6B42P544
A1742E7E42S1543
A2742E8D42S2741 (2AZ-FE)
B9A42E9C42S28A43
B10B42E1040 (2AZ-FE)S29B43
C11A42G543S30A43
C12B42J241 (2AZ-FE)S31B43
C1642J643T1341 (2AZ-FE)
D342J743
E240 (2AZ-FE)J1643
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
222Engine Room R/B (Engine Compartment Left)
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1E29Cowl 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)
2A
2B27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
2F
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
3J313K31
4A
4D
4E33
4FCowl Wire and Passenger Side J/B (Right Side of Grove Box)
4H
g(g )
4L324M32
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
IB252Front Door LH Wire and Cowl Wire (Left Kick Panel)
IC1
IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
IC4
g()
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)
IL254Instrument Panel Wire and Cowl Wire (Upper Side of Passenger Side J/B)
IM154Engine Wire and Cowl Wire (Right Kick Panel)

2005 HIGHLANDER (EWD592U)
178
Cruise Control for 2AZ-FE
: GROUND POINTS
CodeSee PageGround Points Location
EE50 (2AZ-FE)Intake Side of Cylinder Block
EF50 (2AZ-FE)Left Side of Cylinder Block
EH50 (2AZ-FE)Under the Left Headlight
IB52Right Instrument Panel Brace
: SPLICE POINTS
CodeSee PageWire Harness with Splice PointsCodeSee PageWire Harness with Splice Points
E950 (2AZ-FE)Engine WireI754Cowl Wire
I654Engine Wire