fuse TOYOTA HIGHLANDER 2001 Service Repair Manual

'05 HIGHLANDER_U (L/O 0409)
405
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
SPECIFICATIONS
Specifications
Dimensions and weights406 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine406 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel407 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service specifications407 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tires410 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuses410 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 8

'05 HIGHLANDER_U (L/O 0409)
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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Engine compartment
Tires
Ti r e siz eTi r e inf lat ion pr es s ur e
Front Rear
P225/70R16 101S
225/65R17 101S210 (2.1, 30) 210 (2.1, 30)
210 (2.1, 30) 210 (2.1, 30)Wheel size
16
6 1/2 JJ
17
6 1/ 2 JJ
When driving under the above load condition at sustained high speeds above
160 km/h (100 mph), in countries where such speeds are permitted by- low,
inflate the front and rear tires to the following tire inflation pressure provided
that it does not exceed the maximum cold tire inflation pressure molded
on the tire sidewall.
P225/70R16 101S tires 240 kPa (2.4 kgf/cm
2
or bar, 35 psi)
225/65R17 101S tires 230 kPa (2.3 kgf/cm2
or bar, 33 psi)
Wheel nut torque, N
´m (kgf´m, ft´lbf):
103 (10.5, 76)
NOTE: For a complete information on tires (e.g. replacing tires or replacing
wheels), see Checking tire inflation pressureº through Aluminum
wheel precautionsº, pages 385 through 393, in Section 7- 2. Tire size and cold tire inflation pressure:
kPa (kgf/cm
2
or bar, psi)
Fuses

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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Instrument panel
Fuses (type A)
1. A/F 25 A: Air fuel ratio sensor
2. CRT 7.5 A: Rear seat entertainment
system, navigation system
3. STARTER 7.5 A: Multiport fuel injection
system/sequential multiport fuel injec-
tion system
4. EFI NO.2 10 A: Multiport fuel injection
system/sequential multiport fuel injec-
tion system
5. ETCS 10 A: Multiport fuel injection
system/sequential multiport fuel injec-
tion system
Engine compartment
(with daytime running light system)
6. RR HTR 15 A: Rear air conditioning
system
7. H- LP RH LWR 15 A: Right- hand head-
light (low beam)
8. H- LP LH LWR 15 A: Left- hand head-
light (low beam)
9. ALT- S 7.5 A: Charging system
10. POWER OUTLET2 20 A: Power outlets
11. TOWING 20 A: Trailer lights
12. HORN 10 A: Horns
13. SECURITY 15 A: Theft deterrent sys-
tem14. H- LP RH UPR 10 A: Right- hand head-
light (high beam)
15. ECU´B 7.5 A: Theft deterrent system,
air conditioning system, gauges and
meters, multiplex communication sys-
tem, electronic moon roof, front pas-
senger occupant classification system
16. EFI NO.1 20 A: Multiport fuel injection
system/sequential multiport fuel injec-
tion system, fuel pump
17. DOOR LOCK 25 A: Power door lock
system, theft deterrent system
18. H- LP LH UPR 10 A: Left- hand head-
light (high beam)
19. RAD NO.1 25 A: Audio system
20. DOME 10 A: Personal lights, interior
lights, vanity lights, ignition switch light,
wireless remote control system, gauges
and meters, navigation system
21. HAZARD 15 A: Emergency flashers,
instrument panel light, trailer lights
22. SPARE 7.5 A: Spare fuse
23. SPARE 15 A: Spare fuse
24. SPARE 25 A: Spare fuse

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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
25. IGN 10 A: Gauges and meters, SRS
airbag system, multiport fuel injection
system/sequential multiport fuel injec-
tion system, front passenger occupant
classification system
26. RAD NO.2 7.5 A: Audio system, shift
lock system, navigation system, rear
seat entertainment system, air condi-
tioning system, multiplex communica-
tion system
27. CIG 15 A: Cigarette lighter
28. P RR DOOR 20 A: Power windows
29. PWR OUTLET1 15 A: Power outlets
30. FR FOG 20 A: Front fog lights
31. ECU- IG 10 A: Electric moon roof,
anti- lock brake system, vehicle stability
control system, shift lock system,
charging system, starting system
32. WIPER 25 A: Windshield wipers and
washer
33. D RR DOOR 20 A: Power windows
34. D FR DOOR 25 A: Power windows,
door courtesy lights, power door lock
system
35. S/ROOF 20 A: Electric moon roof36. HEATER 10 A: Air conditioning system,
electric cooling fan, rear window defog-
ger, outside rear view mirror defogger,
gauges and meters
37. IG1 7.5 A: Back- up lights, vehicle sta-
bility control system, multiport fuel in-
jection system/sequential multiport fuel
injection system, outside rear view mir-
ror heaters, power door lock system,
wireless remote control system, naviga-
tion system, multiplex communication
system
38. RR WIP 15 A: Rear window wiper
39. STOP 20 A: Stop lights, high mounted
stoplight, anti- lock brake system, ve-
hicle stability control system, shift lock
system, trailer lights, multiplex commu-
nication system, multiport fuel injection
system/sequential multiport fuel injec-
tion system
40. OBD 7.5 A: On- board diagnosis sys-
tem
41. SEAT HTR 15 A: Seat heaters
42. IG2 15 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, charging system, starter sys-
tem
43. WASHER 20 A: Low windshield washer
fluid level warning light44. FR DEF 20 A: Air conditioning system,
outside rear view mirror defoggers
45. P FR DOOR 20 A: Power windows,
door courtesy lights, multiplex commu-
nication system
46. TAIL 10 A: Tail lights, license plate
lights, instrument panel lights, front fog
lights, front side marker lights, rear
side marker lights, parking lights
47. PANEL 7.5 A: Instrument panel lights,
trailer lights
48. DRL 7.5 A: Daytime running light sys-
tem
Fuses (type B)
49. AM2 30 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, starting system
50. ABS2 50 A: Anti- lock brake system,
vehicle stability control system
51. ABS1 30 A: Anti- lock brake system,
vehicle stability control system
52. HTR 50 A: Air conditioning system
53. RDI 30 A: Electric cooling fans
54. RR DEF 30 A: Rear window defoggers
55. CDS 30 A: Electric cooling fans

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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
56. MAIN 40 A: H- LP RH LWRº, H- LP
LH LWRº, H- LP RH UPRº and H- LP
LH UPRº fuses
57. AM1 40 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, starting system
58. POWER 30 A: Power seat
Fuse (type C)
59. ALT 140 A: POWERº, STOPº, FR
DEFº, FR FOGº, OBDº, TAILº,
PANELº, S/ROOFº, D FR DOORº, P
FR DOORº, D RR DOORº, P RR
DOORº and PWR OUTLET1º fuses
60. RDI 50 A: No circuit

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Engine Control for 3MZ-FE
The engine control system utilizes a microcomputer and maintains overall control of the engine, transmission etc. An outline
of the engine control is given here.
1. Input Signals
(1) Engine coolant temp. signal circuit
The engine coolant temp. sensor detects the engine coolant temp. and has a built-in thermistor with a resistance, which
varies according to the engine coolant temp. The engine coolant temp. which is input into TERMINAL THW of the
engine control module as a control signal.
(2) Intake air temp. signal circuit
The intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp. which is input as a
control signal to TERMINAL THA of the engine control module.
(3) Vehicle speed signal circuit
The vehicle speed signal is input from the ABS speed sensor to skid control ECU with actuator, and are sent to the
engine control module through communication control.
(4) RPM signal circuit
Camshaft position is detected by the VVT sensors and its signal is input to TERMINALS VV1+ and VV2+ of the engine
control module as a control signal. Also, engine RPM is detected by the crankshaft position sensor and is input as a
control signal to TERMINAL NE+.
(5) Throttle position signal circuit
The throttle control motor and sensor detects the throttle valve opening angle as a control signal, which is input into
TERMINALS VTA1 and VTA2 of the engine control module.
(6) Battery signal circuit
Voltage is constantly applied to TERMINAL BATT of the engine control module. With the ignition SW turned on, the
voltage for engine control module start-up power supply is applied to TERMINALS +B and +B2 of the engine control
module via the EFI relay.
The current flowing through the IGN fuse flows to TERMINAL IGSW of the engine control module.
(7) Intake air volume signal circuit
Intake air volume is detected by the mass air flow meter and the signal is input to TERMINAL VG of the engine control
module as a control signal.
(8) Stop light SW signal circuit
The stop light SW is used to detect whether the vehicle is braking or not and the signal is input into TERMINAL STP of
the engine control module as a control signal.
(9) Starter signal circuit
To confirm whether the engine is cranking, the voltage is applied to the starter motor during cranking is detected and the
signal is input into TERMINAL STA of the engine control module as a control signal.
(10) Engine knock signal circuit
Engine knocking is detected by knock sensors and the signal is input into TERMINALS KNK1 and KNK2 as a control
signal.
(11) Air fuel ration signal circuit
The air fuel ration is detected and input as a control signal into TERMINALS A1A+ and A2A+ of the engine control
module.
(12) Oxygen sensor signal circuit
The oxygen density in the exhaust gases is detected and input as a control signal into TERMINALS OX1B and OX2B of
the engine control module.
To maintain stable detection performance by the heated oxygen sensor, a heater is used for warning the sensor. The
heater is also controlled by the engine control module (HT1B and HT2B).
(13) Fuel cut in a collision
The system receives the collision signal from airbag sensor assembly in the vehicle has a collision and stops the fuel
pump operation on the side of the engine control module.
System Outline

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The engine control system utilizes a microcomputer and maintains overall control of the engine, transmission etc. An outline
of the engine control is given here.
1. Input Signals
(1) Engine coolant temp. signal circuit
The engine coolant temp. sensor detects the engine coolant temp. and has a built-in thermistor with a resistance, which
varies according to the engine coolant temp.. The engine coolant temp. which is input into TERMINAL THW of the
engine control module as a control signal.
(2) Intake air temp. signal circuit
The intake air temp. sensor is installed in the mass air flow meter and detects the intake air temp. which is input as a
control signal to TERMINAL THA of the engine control module.
(3) Vehicle speed signal circuit
The vehicle speed signal is input from the ABS speed sensor to skid control ECU with actuator, and are sent to the
engine control module through communication control.
(4) RPM signal circuit
Camshaft position and crankshaft position are detected by the camshaft position sensor and crankshaft position sensor.
Camshaft position is input as a control signal to TERMINAL G2+ of the engine control module, and engine RPM is input
into TERMINAL NE+.
(5) Throttle position signal circuit
The throttle position sensor detects the throttle valve opening angle as a control signal, which is input into TERMINALS
VTA1 and VTA2 of the engine control module.
(6) Battery signal circuit
Voltage is constantly applied to TERMINAL BATT of the engine control module. With the ignition SW turned on, the
voltage for engine control module start-up power supply is applied to TERMINALS +B and +B2 of the engine control
module via the EFI relay.
The current flowing through the IGN fuse flows to TERMINAL IGSW of the engine control module.
(7) Intake air volume signal circuit
Intake air volume is detected by the mass air flow meter and the signal is input to TERMINAL VG of the engine control
module as a control signal.
(8) Stop light SW signal circuit
The stop light SW is used to detect whether the vehicle is braking or not and the signal is input into TERMINAL STP of
the engine control module as a control signal.
(9) Starter signal circuit
To confirm whether the engine is cranking, the voltage is applied to the starter motor during cranking is detected and the
signal is input into TERMINAL STA of the engine control module as a control signal.
(10) Engine knock signal circuit
Engine knocking is detected by knock sensor and the signal is input into TERMINAL KNK1 as a control signal.
(11) Air fuel ratio signal system
The air fuel ratio is detected and input as a control signal into TERMINAL A1A+ of the engine control module.
(12) Oxygen sensor signal circuit
The oxygen density in the exhaust gases is detected and input as a control signal into TERMINAL OX1B of the engine
control module. To maintain stable detection performance by the heated oxygen sensor, a heater is used for warning the
sensor. The heater is also controlled by engine control module (O1B-).
(13) Fuel cut in a collision
The system receives the collision signal from center airbag sensor assembly in the vehicle has a collision and stops the
fuel pump operation on the side of the engine control module.
System Outline

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With the ignition SW turned on, the current flows to TERMINAL (A) 5 of the body ECU through IG1 fuse.
Voltage is applied at all times to TERMINAL (A) 7 of the body ECU through the TAILLIGHT relay. Coil side, and to
TERMINAL (C) 3 through the HEAD LAMP relay coil side (w/o daytime running light) or through the DRL NO.2 relay (w/
daytime running light).
1. Normal Lighting Operation

With the light control SW turned to TAIL position, a signal is input into TERMINAL (B) 18 of the body ECU. Due to this signal,
the current flowing to TERMINAL (A) 7 of the body ECU flows to TERMINAL (B) 18 to TERMINAL 14 of the light control SW
to TERMINAL 16 to GROUND, and TAILLIGHT relay causes taillights to turn on.

With the light control SW turned to HEAD position, a signal is input into TERMINALS (B) 17 and (B) 18 of the body ECU. Due
to this signal, the current flowing to TERMINAL (C) 3 of the body ECU flows to TERMINAL (B) 17 to TERMINAL 13 of the
light control SW to TERMINAL 16 to GROUND in the headlight circuit, and causes TAILLIGHT and HEAD LAMP (w/o
daytime running light) or DRL NO.2 relay (w/ daytime running light) to turn the lights on. The taillight circuit is same as above.
2. Light Auto Turn Off Operation
With light on and ignition SW turned off (Input signal goes to TERMINAL (A) 5 of the body ECU), when the driver's door is
opened (Input signal goes to TERMINAL (C) 11 of the body ECU), the ECU operates and the current is cut off which flows
from TERMINAL (A) 7 of the body ECU to TERMINAL (B) 18 in taillight circuit and from TERMINAL (C) 3 to TERMINAL (B)
17 in headlight circuit.
As a result, all lights are turned off automatically.
B9 (A), B10 (B), B12 (D) Body ECU
(D) 9-Ground : Always approx. 12 volts
(A) 5-Ground : Approx. 12 volts with the ignition SW at ON position
(B)17-Ground : Continuity with the light control SW at HEAD position
K4 Unlock Warning SW
2-1 : Closed with the ignition key in the cylinder
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
B9A42C1342J643
B10B42D744K443
B11C42F738 (3MZ-FE)
B12D42F740 (2AZ-FE)
: RELAY BLOCKS
CodeSee PageRelay Blocks (Relay Block Location)
323Engine Room R/B No.3 (Engine Compartment Rear Left)
System Outline
Service Hints

2005 HIGHLANDER (EWD592U)
161
The SRS is a driver and front passenger protection device which has a supplemental role to the seat belts.
When the ignition SW is turned to ON, the current from the IGN fuse flows to TERMINAL (B) 5 of the airbag sensor
assembly.
If an accident occurs while driving, when the frontal impact exceeds a set level, the current from the IGN fuse flows to
TERMINALS (B) 14, (B) 16, (B) 10, (B) 8, (A) 8 (w/ curtain shield airbag), or (A) 2 (w/o curtain shield airbag) and (C) 9 (w/
curtain shield airbag), or (C) 5 (w/o curtain shield airbag) of the airbag sensor assembly to the airbag squibs and the
pretensioners to TERMINALS (B) 13, (B) 17, (B) 11, (B) 7, (A) 7 (w/ curtain shield airbag), or (A) 1 (w/o curtain shield airbag)
and (C) 10 (w/ curtain shield airbag), or (C) 6 (w/o curtain shield airbag) of the airbag sensor assembly to TERMINAL (B) 27,
(B) 28 or BODY GROUND to GROUND, so that current flows to the airbag squibs and the pretensioners and causes them to
operate.
When the side impact also exceeds a set level, the current from the IGN fuse flows to TERMINALS (A) 12, (C) 5, (A) 9 and
(C) 8 of the airbag sensor assembly to the side airbag squibs and the curtain shield airbag squibs TERMINALS (A) 11, (C) 6,
(A) 10 and (C) 7 of the airbag sensor assembly to TERMINAL (B) 27, (B) 28 or BODY GROUND to GROUND, causing side
airbag squibs and curtain shield airbag squibs to operate.
The airbag stored inside the steering wheel pad is instantaneously expanded to soften the shock to the driver.
The airbag stored inside the passenger's instrument panel is instantaneously expanded to soften the shock to the front
passenger.
Side airbags are instantaneously expanded to soften the shock of side to the driver and front passenger.
The curtain shield airbag can ease an impact on the head of the front and rear passengers and reduce risks of injury.
In a head-on crash, the driver moves forward and may strike his/her lower limbs against the instrument panel, the key
cylinder, etc.
The pretensioners make sure of the seat belt restrainability.
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
A838 (3MZ-FE)C1844O1047 (w/o Power Seat)A840 (2AZ-FE)C1944O1146 (w/ Power Seat)
A938 (3MZ-FE)D342O1147 (w/o Power Seat)A940 (2AZ-FE)E542P544
A10A42G543P1344
A11B42J643P1444
A16A42J1643S1645
A17B42J1743S1745
A18C42J1844S1846 (w/ Power Seat)
A1942O6A46 (w/ Power Seat)S1847 (w/o Power Seat)
A2042O6A47 (w/o Power Seat)S1946 (w/ Power Seat)
B9A42O7B46 (w/ Power Seat)S1947 (w/o Power Seat)
B10B42O7B47 (w/o Power Seat)S30A43
B1746 (w/ Power Seat)O846 (w/ Power Seat)S31B43B1747 (w/o Power Seat)O847 (w/o Power Seat)S3245
B1946 (w/ Power Seat)O946 (w/ Power Seat)S3345
C11A42O947 (w/o Power Seat)T1543
C12B42O1046 (w/ Power Seat)
System Outline

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