2001 TOYOTA HIGHLANDER fuse

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

2005 HIGHLANDER (EWD592U)
233
When the ignition SW is turned to ACC position, the current from the RAD NO.2 fuse flows to TERMINAL 1 of the shift lock
ECU. When the ignition SW is turned to ON position, the current from the ECU-IG fuse flows to TERMINAL 5 of the ECU.
1. Shift Lock Mechanism
With the ignition SW on, when a signal that the brake pedal is depressed (Stop light SW on) and a signal that the shift lever
is put in P position (Continuity between P1 and P of the shift lock control SW) is input to the ECU, the ECU activates and the
current flows from TERMINAL 5 of the ECU to TERMINAL SLS+ of the shift lock solenoid to solenoid to TERMINAL SLS- to
TERMINAL 3 of the ECU to GROUND. This causes the shift lock solenoid to turn on (Lock plate disengages) and the shift
lever can be shifted into other position than the P position
2. Key Inter Lock Mechanism
With the ignition SW ON or ACC position, when the shift lever is put in P position (No continuity between P2 and P of shift
lock control SW), the current flowing from TERMINAL 4 of the ECU to the key interlock solenoid is cut off. This causes the
key interlock solenoid to turn off (Lock plate disengages from LOCK position) and the ignition key can be turned from ACC to
LOCK position.
S5 Shift Lock ECU
1-Ground : Approx. 12 volts with the ignition SW at ACC or ON position
5-Ground : Approx. 12 volts with the ignition SW at ON position
3-Ground : Always continuity
2-Ground : Approx. 12 volts with the stop light SW on (Brake pedal depressed)
S15 Stop Light SW
2-1 : Closed with the brake pedal depressed
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
K443S543S1543
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1E29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
1J28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)1K28Instrument Panel Wire and Instrument Panel J/B (Lower Finish Panel)
3A
3D30Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)3FInstrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3K31
4G33
4L32Cowl Wire and Passenger Side J/B (Right Side of Grove Box)
4N32g(g )
: CONNECTOR JOINING WIRE HARNESS AND WIRE HARNESS
CodeSee PageJoining Wire Harness and Wire Harness (Connector Location)
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)
: GROUND POINTS
CodeSee PageGround Points Location
IB52Right Instrument Panel Brace
IC52Right Cowl Side Panel
System Outline
Service Hints

2005 HIGHLANDER (EWD592U)
308
Manual Air Conditioning
1. Heater Blower Motor Operation
Current is applied at all times through the HTR fuse to TERMINAL 1 of the HEATER relay.
When the ignition SW is turned on, current flows through the HEATER fuse to TERMINAL 3 of the HEATER relay to
TERMINAL 5 to TERMINAL 8 of the blower control SW.
*Low speed operation
When the blower SW is moved to LO position, the current to TERMINAL 8 of the blower control SW flows to TERMINAL
1 to GROUND, causing the HEATER relay is turned on. This causes the current to flow from the HTR fuse to TERMINAL
1 of the HEATER relay to TERMINAL 2 to TERMINAL 2 of the blower motor to TERMINAL 1 to TERMINAL 1 of the
blower resistor to TERMINAL 4 to GROUND, causing the blower motor to rotate at low speed.
*Medium speed operation (Operation at M1, M2)
When the blower SW is moved to M1 position, the current to TERMINAL 8 of the blower control SW flows to TERMINAL
1 to GROUND, turns the HEATER relay on. This causes the current to flow from the HTR fuse to TERMINAL 1 of the
HEATER relay to TERMINAL 2 to TERMINAL 2 of the blower motor to TERMINAL 1 to TERMINAL 1 of the blower
resistor to TERMINAL 2 to TERMINAL 6 of the blower control SW to TERMINAL 1 to GROUND. At this time, the blower
resistance of the blower resistor is less than at low speed, so the blower motor rotates at medium low speed.
When the blower control SW is moved to M2 position, current flowing through the motor flows from TERMINAL 1 of the
blower resistor to TERMINAL 3 to TERMINAL 5 of the blower control SW to TERMINAL 1 to GROUND. At this time,
resistance of the blower resistor is less than at M1 position, so the blower motor rotates at medium high speed.
*High speed operation
When the blower SW is moved to HI position, the current flows to TERMINAL 8 of the blower control SW to TERMINAL
1 to GROUND and turns the HEATER relay on.
This causes the current to flow from the HTR fuse to TERMINAL 1 of the HEATER relay to TERMINAL 2 to TERMINAL 2
of the blower motor to TERMINAL 1 to TERMINAL 4 of the blower control SW to TERMINAL 1 to GROUND, causing the
blower motor to rotate at high speed.
2. Air Conditioning Operation
If the A/C control SW is turned on when the blower SW is set to on, A/C operation starts. However, when the mode SW is at
DEF or FOOT/DEF position, forcibly the air intake is set to FRESH mode and the A/C operates.
A3 Pressure SW
1-4 : Open with the pressure less than 2.0 kgf/cm2 (28 psi, 196 kpa) or above 32 kgf/cm2 (455 psi, 3138 kpa)
A10 (A) A/C Control Assembly
(A) 11-Ground : Always continuity
(A) 2-Ground : Approx. 12 volts with the ignition SW at ON position
(A)12-Ground : Always approx. 12 volts
(A)13-Ground : Approx. 12 volts with the ignitino SW at ACC or ON position
B8 Blower Resistor
1-3 : Approx. 0.22 W
1-2 : Approx. 0.69 W
1-4 : Approx. 1.69 W
B5 Blower Control SW
8-1 : Continuity with the blower SW at LO, M1, M2 or HI position
6-1 : Continuity with the blower SW at M1 position
5-1 : Continuity with the blower SW at M2 position
4-1 : Continuity with the blower SW at HI position
System Outline
Service Hints

'05 HIGHLANDER_U (L/O 0409)
371
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
DO- IT- YOURSELF MAINTENANCE
Introduction
Engine compartment overview372 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuse locations374 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Do- it- yourself service precautions375 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Positioning the jack376 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts and tools377 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 7- 1

'05 HIGHLANDER_U (L/O 0409)
372
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
1. Engine coolant reservoir
2. Power steering fluid reservoir
3. Engine oil filler cap
4. Engine oil level dipstick
5. Fuse blocks
6. Brake fluid reservoir
7. Battery
8. Radiator
9. Condenser
10. Electric cooling fans
11. Windshield and rear window washer
fluid tank
Engine compartment overview

2AZ- FE engine

'05 HIGHLANDER_U (L/O 0409)
373
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
1. Engine coolant reservoir
2. Power steering fluid reservoir
3. Engine oil level dipstick
4. Engine oil filler cap
5. Fuse blocks
6. Brake fluid reservoir
7. Battery
8. Radiator
9. Condenser
10. Electric cooling fans
11. Windshield and rear window washer
fluid tank
3MZ- FE engine

'05 HIGHLANDER_U (L/O 0409)
374
2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Spare fuses
With daytime running light system
Fuse locations