engine TOYOTA HIGHLANDER 2001 Service Repair Manual

2005 HIGHLANDER (EWD592U)
101
T14 Transponder Key Computer
1-Ground : Always approx. 12 volts
14-Ground : Always continuity
2-Ground : Approx. 12 volts with ignition SW at ON or ST position
: PARTS LOCATION
CodeSee PageCodeSee PageCodeSee Page
D342J1643T743
D744J1743T1443
E642K443
J643T543
: JUNCTION BLOCK AND WIRE HARNESS CONNECTOR
CodeSee PageJunction Block and Wire Harness (Connector Location)
1D29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)1G29Cowl Wire and Instrument Panel J/B (Lower Finish Panel)
2A27Engine Room Main Wire and Engine Room J/B (Engine Compartment Left)
3B303F30Instrument Panel Wire and Center J/B (Behind the Instrument Panel Center)
3K31
()
4A
4E33
4G
4KCowl Wire and Passenger Side J/B (Right Side of Grove Box)
4L32
g(g )
4M32
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)
IC352Engine Room Main Wire and Cowl Wire (Left Cowl Side Panel)
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
Service Hints

'05 HIGHLANDER_U (L/O 0409)
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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
STARTºÐStarter motor on. The key
will return to the ONº position when
released.
For starting tips, see page 317 in Section
3.
ONºÐEngine on and all accessories
on.
This is the normal driving position.
ACCºÐAccessories such as the radio
operate, but the engine is off.
If you leave the key in the ACCº or
LOCKº position and open the driver's
door, a buzzer will remind you to remove
the key.LOCKºÐEngine is off and the steering
wheel is locked. The key can be re-
moved only at this position.
You must push in the key to turn it from
ACCº to the LOCKº position. The selec-
tor lever must be in the Pº position be-
fore pushing the key.
Vehicles with engine immobilizer sys-
temÐOnce you remove the key, the en-
gine immobilizer system is automatically
set. (See Engine immobilizer systemº on
page 17 in Section 1- 2.)
When starting the engine, the key may
seem stuck at the LOCKº position. To
free it, first be sure the key is pushed all
the way in, and then rock the steering
wheel slightly while turning the key gently.
2AZ- FE engine onlyÐApproximately five
hours after the engine is turned off, you
may hear sound coming from underneath
the luggage compartment for several min-
utes. This is normal operation and does
not indicate a malfunction. (See Leak
detection pumpº on page ix.)
NOTICE
Do not leave the key in the ONº
position if the engine is not running.
The battery will discharge and the
ignition could be damaged.
Ignition switch with steering
lock

'05 HIGHLANDER_U (L/O 0409)
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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Your automatic transmission has a shift
lock system to minimize the possibility of
incorrect operation. This means you can
only shift out of Pº position when the
brake pedal is depressed (with the ignition
switch in ONº position and the lock re-
lease button depressed).
(a) Selector lever
The shift position is also displayed on the
instrument cluster.
P:Parking, engine starting and
key removal
R:Reverse
N:Neutral
D:Normal driving (with overdrive on)
2:Stronger engine braking
L:Maximum engine braking
Automatic transmission

2AZ- FE engine
Lock release button
To prevent misshifting
With the brake pedal depressed,
shift while holding the lock release
button in. (The ignition switch must
be in ONº position.)
Shift while holding the lock
release button in.
Shift normally.Selector lever
Snow mode
button
Overdrive switch

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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
(b) Overdrive switch
You can select either third gear (with
overdrive off) or fourth gear (with over-
drive on) by pushing this switch.
To turn the overdrive off, push the switch.
The O/D OFFº indicator light should come
on. To turn the overdrive on again, push
the switch again. The O/D OFFº indicator
light should go off.
Always drive your vehicle with the over-
drive on for better fuel economy and
quieter driving.
If the engine is turned off when the over-
drive is off and restarted, the overdrive
will be on automatically.When the cruise control is being used,
even if you downshift the transmission by
pushing and releasing the overdrive
switch, engine braking will not be enabled
because the cruise control is not can-
celled.
For ways to decrease the vehicle speed,
see Cruise controlº on page 165 in this
Section.
(c) Normal driving
1. Start the engine as instructed in How
to start the engineº on page 318 in
Section 3. The transmission must be in
Pº or Nº.
2. With your foot holding down the brake
pedal, shift the selector lever to Dº.
When the lever is in the Dº position, the
automatic transmission system will select
the most suitable gear for running condi-
tions such as normal cruising, hill climb-
ing, hard towing, etc.
Always turn the overdrive on for better
fuel economy and quieter driving. If the
engine coolant temperature is low, the
transmission will not shift into the over-
drive gear even with the overdrive on.
CAUTION
Never put your foot on the accelera-
tor pedal while shifting.
3. Release the parking brake and brake
pedal. Depress the accelerator pedal
slowly for smooth starting.
(d) Using engine braking
To use engine braking, you can downshift
the transmission as follows:
Push the overdrive switch. The O/D
OFFº indicator light will come on and
the transmission will downshift to third
gear.
Shift into the 2º position. The trans-
mission will downshift to second gear
when the vehicle speed drops down to
or lower than the following speed, and
stronger engine braking will be en-
abled.
Two- wheel drive models
103 km/h (63 mph) . . . . . . . . . . . . . . .
Four- wheel drive models
93 km/h (57 mph) . . . . . . . . . . . . . . . .

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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Shift into the Lº position. The trans-
mission will downshift to first gear
when the vehicle speed drops down to
or lower than the following speed, and
maximum engine braking will be en-
abled.
Two- wheel drive models
45 km/h (28 mph) . . . . . . . . . . . . . . . .
Four- wheel drive models
46 km/h (28 mph) . . . . . . . . . . . . . . . .
When the cruise control is being used,
even if you downshift the transmission by
pushing and releasing the overdrive
switch, engine braking is not enabled be-
cause the cruise control is not cancelled.
For ways to decrease the vehicle speed,
see Cruise controlº on page 165 in this
Section.
CAUTION
Be careful when downshifting on a
slippery surface. Abrupt shifting
could cause the vehicle to spin or
skid.
(e) Using 2º and Lº positions
The 2º and Lº positions are used for
strong engine braking as described pre-
viously.
With the selector lever in 2º or Lº, you
can start the vehicle in motion as with the
lever in Dº.
With the selector lever in 2º, the vehicle
will start in first gear and automatically
shift to second gear.
With the selector lever in Lº, the trans-
mission is engaged in first gear.
NOTICE

Be careful not to over- rev the en-
gine. Watch the tachometer to keep
engine rpm from going into the red
zone. The approximate maximum al-
lowable speed for each position is
given below for your reference:
Two- wheel drive models
2º 123 km/h (76 mph). . . . . . . . .
Lº 69 km/h (43 mph). . . . . . . . . .
Four- wheel drive models
 2 º 111 k m / h ( 6 9 m p h ). . . . . . . . .
Lº 62 km/h (38 mph). . . . . . . . . .

Do not continue hill climbing or
hard towing for a long time in the
2º or Lº position. This may cause
severe automatic transmission dam-
age from overheating. To prevent
such damage, Dº position should
be used in hill climbing or hard
towing.
(f) Backing up
1. Bring the vehicle to a complete stop.
2. With the brake pedal held down with
your foot, shift the selector lever to the
Rº position.
NOTICE
Never shift into reverse while the ve-
hicle is moving.
(g) Parking
1. Bring the vehicle to a complete stop.
2. With the brake pedal pressed down,
fully depress the parking brake pedal
to apply the parking brake securely.
3. With the brake pedal pressed down,
shift the selector lever to the Pº posi-
tion.

'05 HIGHLANDER_U (L/O 0409)
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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
CAUTION
Never attempt to move the selector
lever into Pº position under any cir-
cumstances while the vehicle is mov-
ing. Serious mechanical damage and
loss of vehicle control may result.
(h) Good driving practice
If the transmission repeatedly shifts up
and down between third gear and over-
drive when climbing a gentle slope, the
overdrive switch should be turned off.
Be sure to turn the switch on immedi-
ately afterward.
When towing a trailer, in order to main-
tain engine braking efficiency, do not
use overdrive.
CAUTION
Always keep your foot on the brake
pedal while stopped with the engine
running. This prevents the vehicle
from creeping.
NOTICE
Always use the brake pedal or the
parking brake to hold the vehicle on
an upgrade. Do not attempt to hold
the vehicle using the accelerator ped-
al, as this can cause the transmission
to overheat.
(i) Driving in snow mode
Use this mode when starting your vehicle
in ice or snow.
To set the driving pattern to the snow
mode, push the switch. The ECT SNOWº
indicator on the instrument cluster is on.
To cancel the snow mode, push the switch
again.
If the engine is turned off with the snow
mode is on, the snow mode is cancelled
when the engine is restarted.

'05 HIGHLANDER_U (L/O 0409)
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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Your automatic transmission has a shift
lock system to minimize the possibility of
incorrect operation. This means you can
only shift out of Pº position when the
brake pedal is depressed (with the ignition
switch in ONº position and the lock re-
lease button depressed).
(a) Selector lever
The shift position is also displayed on the
instrument cluster.
P:Parking, engine starting and
key removal
R:Reverse
N:Neutral
D:Normal driving (with overdrive on)
3, 2: Stronger engine braking
L:Maximum engine braking
3MZ- FE engine
Lock release button
To prevent misshifting
With the brake pedal depressed,
shift while holding the lock
release button in.
(The ignition switch must be in
ONº position.)
Shift while holding the lock
release button in.
Shift normally.Selector lever
Snow mode
button
Overdrive switch

'05 HIGHLANDER_U (L/O 0409)
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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
(b) Overdrive switch
You can select either fourth gear (with
overdrive off) or fifth gear (with overdrive
on) by pushing this switch.
To turn the overdrive off, push the switch.
The O/D OFFº indicator light should come
on. To turn the overdrive on again, push
the switch again. The O/D OFFº indicator
light should go off.
Always drive your vehicle with the over-
drive on for better fuel economy and
quieter driving.
If the engine is turned off when the over-
drive is off and restarted, the overdrive
will be on automatically.When the cruise control is being used,
even if you downshift the transmission by
pushing and releasing the overdrive
switch, engine braking will not be enabled
because the cruise control is not can-
celled.
For ways to decrease the vehicle speed,
see Cruise controlº on page 165 in this
Section.
(c) Normal driving
1. Start the engine as instructed in How
to start the engineº on page 318 in
Section 3. The transmission must be in
Pº or Nº.
2. With your foot holding down the brake
pedal, shift the selector lever to Dº.
When the lever is in the Dº position, the
automatic transmission system will select
the most suitable gear for running condi-
tions such as normal cruising, hill climb-
ing, hard towing, etc.
Always turn the overdrive on for better
fuel economy and quieter driving. If the
engine coolant temperature is low, the
transmission will not shift into the over-
drive gear even with the overdrive on.
CAUTION
Never put your foot on the accelera-
tor pedal while shifting.
3. Release the parking brake and brake
pedal. Depress the accelerator pedal
slowly for smooth starting.
(d) Using engine braking
To use engine braking, you can downshift
the transmission as follows:
Push the overdrive switch. The O/D
OFFº indicator light will come on and
the transmission will downshift to fourth
gear.
Shift into the 3º position. The trans-
mission will downshift to third gear
when the vehicle speed drops down to
or lower than 129 km/h (80 mph), and
stronger engine braking will be en-
abled.
Shift into the 2º position. The trans-
mission will downshift to second gear
when the vehicle speed drops down to
or lower than 83 km/h (51 mph), and
stronger engine braking will be en-
abled.

'05 HIGHLANDER_U (L/O 0409)
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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
Shift into the Lº position. The trans-
mission will downshift to first gear
when the vehicle speed drops down to
or lower than 39 km/h (24 mph), and
maximum engine braking will be en-
abled.
When the cruise control is being used,
even if you downshift the transmission by
pushing and releasing the overdrive
switch, engine braking is not enabled be-
cause the cruise control is not cancelled.
For ways to decrease the vehicle speed,
see Cruise controlº on page 165 in this
Section.
CAUTION
Be careful when downshifting on a
slippery surface. Abrupt shifting
could cause the vehicle to spin or
skid.
(e) Using 3º, 2º and Lº positions
The 3º, 2º and Lº positions are used for
strong engine braking as described pre-
viously.
With the selector lever in 3º, 2º or Lº,
you can start the vehicle in motion as
with the lever in Dº.With the selector lever in 3º or 2º, the
vehicle will start in first gear and automat-
ically shift to third gear or second gear.
With the selector lever in Lº, the trans-
mission is engaged in first gear.
NOTICE

Be careful not to over- rev the en-
gine. Watch the tachometer to keep
engine rpm from going into the red
zone. The approximate maximum al-
lowable speed for each position is
given below for your reference:
3º 144 km/h (90 mph). . . . . . . . . . .
2º 92 km/h (58 mph). . . . . . . . . . . .
Lº 51 km/h (32 mph). . . . . . . . . . . .

Do not continue hill climbing or
hard towing for a long time in the
3º, 2º or Lº position. This may
cause severe automatic transmis-
sion damage from overheating. To
prevent such damage, Dº position
should be used in hill climbing or
hard towing.
(f) Backing up
1. Bring the vehicle to a complete stop.
2. With the brake pedal held down with
your foot, shift the selector lever to the
Rº position.
NOTICE
Never shift into reverse while the ve-
hicle is moving.
(g) Parking
1. Bring the vehicle to a complete stop.
2. With the brake pedal pressed down,
fully depress the parking brake pedal
to apply the parking brake securely.
3. With the brake pedal pressed down,
shift the selector lever to the Pº posi-
tion.
CAUTION
Never attempt to move the selector
lever into Pº position under any cir-
cumstances while the vehicle is mov-
ing. Serious mechanical damage and
loss of vehicle control may result.

'05 HIGHLANDER_U (L/O 0409)
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2005 HIGHLANDER from Nov. '04 Prod. (OM48570U)
(h) Good driving practice
If the transmission repeatedly shifts up
and down between fourth gear and
overdrive when climbing a gentle slope,
the overdrive switch should be turned
off. Be sure to turn the switch on im-
mediately afterward.
When towing a trailer, in order to main-
tain engine braking efficiency, do not
use overdrive.
CAUTION
Always keep your foot on the brake
pedal while stopped with the engine
running. This prevents the vehicle
from creeping.
NOTICE
Always use the brake pedal or the
parking brake to hold the vehicle on
an upgrade. Do not attempt to hold
the vehicle using the accelerator ped-
al, as this can cause the transmission
to overheat.
(i) Driving in snow mode
Use this mode when starting your vehicle
in ice or snow.
To set the driving pattern to the snow
mode, push the switch. The ECT SNOWº
indicator on the instrument cluster is on.
To cancel the snow mode, push the switch
again.
If the engine is turned off with the snow
mode is on, the snow mode is cancelled
when the engine is restarted.(j) If you cannot shift the selector le-
ver out of Pº position
If you cannot shift the selector lever from
the Pº position even though the brake
pedal is depressed, use the shift lock
override button. For instructions, see If
you cannot shift automatic transmission
selector leverº on page 354 in Section 4.