engine TOYOTA 4RUNNER 2008 N210 / 4.G Repair Manual

155
Contact your Toyota dealer as soon as
possible to service the vehicle.
If engine speed does not increase when
the accelerator pedal is depressed, there
may be a problem somewhere in the elec-
tronic throttle control system.
At this time, vibration may occur. Howev-
er, if you depress the accelerator pedal
more firmly and slowly, you can drive your
vehicle at low speeds. Have your vehicle
checked by your Toyota dealer as soon as
possible.
Even if the abnormality of the electronic
throttle control system is corrected during
low speed driving, the system may not be
recovered until the engine is stopped and
the engine switch is turned to the ACC"
or LOCK" position.
CAUTION
Be especially careful to prevent erro-
neous pedal operation.
Emissions inspection and maintenance
(I/M) programs
Your vehicle may not pass a state
emission inspection if the malfunction
indicator lamp remains on. Contact your
Toyota dealer to check your vehicle’s
emission control system and OBD
(On−Board Diagnostics) system before
taking your vehicle for the inspection.
For details, see Emissions Inspection and
Maintenance (I/M) programs" on page 426
in Section 6.
(g) Low Fuel Level Warning Light
This light comes on when the fuel level
in the tank becomes nearly empty. Fill up
the tank as soon as possible.
On inclines or curves, due to the move-
ment of fuel in the tank, the low fuel level
warning light may come on earlier than
usual.(h) Engine Oil Replacement Reminder
Light (for vehicles sold in U.S.A.)
This light acts as a reminder to replace
the engine oil.
This light will come on when the engine
switch is turned to ON" and will go off
after about a few seconds.
When you drive for about 7200 km (4500
miles) after the engine oil replacement,
this light illuminates for about 3 seconds
and then flashes for about 12 seconds
with the engine switch turned to the ON"
position. If you continue driving without
the engine oil replacement, and if the driv-
ing range exceeds 8000 km (5000 miles),
the light will come on after the engine
switch is turned to the ON" position. The
light will remain on thereafter.
If the light is flashing, we recommend that
you replace the engine oil at an early
opportunity depending on the driving and
road condition. If the light comes on, re-
place it as soon as possible.

156
You need to reset the light after the en-
gine oil replacement. Reset the light by
following the procedure below:1. Turn the engine switch to the ACC" or LOCK" position with the odometer
reading shown. (For details, see
Odometer and two trip meters" on
page 148 in this Section.)
2. Turn the engine switch to the ON" position while holding down the trip
meter reset button.
Hold down the button until the light goes
off. Before the light goes off, it illuminates
for 3 seconds, flashes for 2 seconds and
illuminates for 1 sec ond.
If the system fails to reset, the light will
remain flashing.
(i) ABS" Warning Light
The light comes on when the engine
switch is turned to the ON" position. If
the anti−lock brake system and the brake
assist system work properly, the light
turns off after a few seconds. Thereafter,
if either of the systems malfunctions, the
light comes on again. When the ABS" warning light is on (and
the brake system warning light is off), the
following systems do not operate, but the
brake system still operates conventionally.
Anti−lock brake system
Brake assist system
Traction control system
(two−wheel drive models)
Active traction control system
(four−wheel drive models)
AUTO LSD" system
(two−wheel drive models)
Vehicle stability control system
Downhill assist control system
(four−wheel drive models)
Hill−start assist control system
When the ABS" warning light is on (and
the brake system warning light is off), the
anti−lock brake system does not operate,
so that the wheels will lock up during a
sudden braking or braking on slippery
road surfaces. If either of the following conditions oc-
curs, this indicates a malfunction some-
where in the components monitored by
the warning light system. Contact your
Toyota dealer as soon as possible to
service the vehicle.
The light does not come on when the
engine switch is turned to the ON"
position, or remains on.
The light comes on while you are dri-
ving.
A warning light turning on briefly during
operation does not indicate a problem.
CAUTION
If the ABS" warning light remains on
together with the brake system warn-
ing light, immediately stop your ve-
hicle at a safe place and contact your
Toyota dealer.
In this case, not only the anti−lock
brake system will fail but also the
vehicle will become extremely unsta-
ble during braking.

157
Either of the following conditions may
occur, but do not indicate a malfunc-
tion:
The light may stay on for about 60
seconds after the engine switch is
turned to the ON" position. It is nor-
mal if it turns off after a while.
Depressing the brake pedal repeatedly
may turn on the light. It is normal if it
turns off after a few seconds.
(j) VSC OFF" Warning Light
The light flashing warns that there is a
problem somewhere in the following.
Vehicle stability control system
Traction control system
(two−wheel drive models)
Active traction control system
(four−wheel drive models)
AUTO LSD" system
(two−wheel drive models)
Downhill assist control system
(four−wheel drive models)
Hill−start assist control system
The light will come on when the engine
switch turned to ON", and will go off after
a few seconds. It is not a malfunction that the warning
light may stay on for 60 seconds after the
engine switch is turned to the ON" posi-
tion.
Depressing the brake pedal repeatedly
may turn on the lights. It is normal if they
go out after a few seconds.
If the light flashes while driving, the above
mentioned systems do not work. However,
as conventional braking operates when ap-
plied, there is no problem to continue your
driving.
In the following cases, contact your Toyota
dealer:
The warning light does not come on
after the engine switch is turned to
ON".
The warning light remains on after the
engine switch is turned to ON".
The warning light flashes while driving.
When the brake fluid level is too low, the
above mentioned systems will not operate
and the warning light comes on.
(k) Open Door Warning Light
This light remains on until all the side
doors and back door are completely
closed. (l) SRS Warning Light
This indicator comes on when the en-
gine switch is turned to the ON" posi-
tion. It goes off after about 6 seconds.
This means the SRS airbags and seat
belt pretensioners are operating proper-
ly.
This warning light system monitors the
airbag sensor assembly, front airbag sen-
sors, side and curtain shield airbag sen-
sors, curtain shield airbag sensors, driv-
er ’s seat position sensor, driver ’s seat belt
buckle switch, front passenger occupant
classification system and indicator light,
front passenger ’s seat belt buckle switch,
seat belt pretensioner assemblies, inflat-
ors, RSCA OFF" indicator light, intercon-
necting wiring and power sources.
If any of the following conditions occurs,
this indicates a malfunction of the airbags
or seat belt pretensioners. Contact your
Toyota dealer as soon as possible.
The light does not come on when the
engine switch is turned to the ON"
position or remains on for more than
6 seconds or flashes.
The light comes on or starts flashing
while driving.

158
The SRS warning light will come on and
front passenger occupant classification in-
dicator light will indicate OFF" if there is
a malfunction in the front passenger occu-
pant classification system.
(m) Automatic Transmission FluidTemperature Warning Light
(four−wheel drive models)
This light warns that the automatic trans-
mission fluid temperature is too high.
If this light comes on while you are driv-
ing, slow down and pull off the road. Stop
the vehicle at a safe place and put the
selector lever in P". With the engine id-
ling, wait until the light goes off. If the
light goes off, you may start the vehicle
again. If the light does not go off, call a
Toyota dealer or qualified repair shop for
assistance.
NOTICE
Continued driving with the warning
light on may damage the automatic
transmission.
(n) Tire Pressure Warning Light
This light warns that the tire pressure of
one or more of your tires (including the
spare tire) is low. The light comes on
when the engine switch is turned to the
ON" position. It goes off after a few sec-
onds. This indicates that the tire pressure
warning system is functioning properly.
If the warning light comes on, stop your
vehicle in a safe place as soon as pos-
sible and check that the inflation pressure
of all tires (including the spare tire) is as
specified on the tire and loading informa-
tion label. (See Checking tire inflation
pressure" on page 441 in Section 7−2.)
The light should go off a few minutes after
the tire pressure is adjusted.
If the warning light comes on after blink-
ing for 1 minute, the tire pressure warning
system may be malfunctioning. Contact
your Toyota dealer.
For details, see Tire pressure warning
system" on page 197 in Section 1−7. (o) Low Windshield Washer Fluid Level
Warning Light (for vehicles sold in
Canada)
The light warns that the windshield washer
fluid level is too low. Add washer fluid at
your earliest opportunity. (For instructions,
see Adding washer fluid" on page 453 in
Section 7−3.)
(p) Key Reminder Buzzer
This buzzer acts as a reminder to remove
the key when you open the driver’s door
with the engine switch in the ACC" or
LOCK" position.
(q) Parking Brake Reminder Buzzer
The buzzer acts once when the parking
brake is not completely released at the
vehicle speed of 5 km/h (3 mph) or more.
Stop the vehicle and release the parking
brake fully.

159
CHECKING SERVICE REMINDER
INDICATORS (except the low fuel level
warning light and low windshield
washer fluid level warning light)1. Apply the parking brake.
2. Open one of the side doors or back door.
The open door warning light should
come on.
3. Close the door. The open door warning light should go
off.
4. Turn the engine switch to ON", but do not start the engine.
All the service reminder indicators ex-
cept the open door warning light should
come on.
The following service reminder indica-
tors go off after a few seconds:
Engine oil replacement reminder light
ABS" warning light
Tire pressure warning light
RSCA OFF" indicator light
AUTO LSD" indicator light
VSC OFF" indicator/warning light
Slip indicator light
Height control indicator lights
Downhill assist control system indicator
light (four−wheel drive models)
Height control OFF" indicator light
The SRS warning light goes off after
about 6 seconds.
There may be the case that the ABS"
warning light (brake assist system
warning light), AUTO LSD" indicator
light, VSC OFF" indicator/warning light
or slip indicator light stay on for about
60 seconds after the engine switch is
turned to the ON" position. It is nor-
mal if they go out after a while.
If any service reminder indicator or warn-
ing buzzer does not function as described
above, have it checked by your Toyota
dealer as soon as possible.

161
OPERATION OF INSTRUMENTS AND
CONTROLS
Engine (ignition) switch, Transmission and Parking
brake
Engine (ignition) switch162
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
.
Automatic transmission 163
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
.
Four−wheel drive system 168
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
Traction control system 175
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
Active traction control system 178
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AUTO LSD" system 180
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . .
Vehicle stability control system 183
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Downhill assist control system 186
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hill−start assist control system 189
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear height control air suspension 191
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire pressure warning system 197
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parking brake 202
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
Cruise control 203
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
SECTION 1− 7

162
CY16026
START"Starter motor on. The engine
switch will return to the ON" position
when released.
For starting tips, see page 369 in Section
3.
ON"Engine on and all accessories
on.
This is the normal driving position.
ACC"Accessories such as the radio
operate, but the engine is off.
If you leave the engine switch in the
ACC" or LOCK" position and open the
driver ’s door, a buzzer will remind you to
remove the key.LOCK"Engine 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 engine
switch from ACC" to the LOCK" position.
The selector lever must be in the P"
position before pushing the key.
Once you remove the key, the engine im-
mobilizer system is automatically set. (See
Engine immobilizer system" on page 14
in Section 1−2.)
When starting the engine, the engine
switch may seem stuck at the LOCK"
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.
Approximately five hours after the engine
is turned off, you may hear sound coming
from underneath the luggage compartment
for several minutes. This is normal opera-
tion and does not indicate a malfunction.
(See Leak detection pump" on page x.)
It is not a malfunction if the needles on
all meters and gauges move slightly when
the engine switch is turned to the ACC",
ON" or START" position.
NOTICE
Do not leave the engine switch in the
ON" position if the engine is not
running. The battery will discharge
and the ignition could be damaged.
Engine (ignition) switch

163
Your automatic transmission has a shift
lock system to minimize the possibility of
incorrect operation. This means you can
only shift out of P" position when the
brake pedal is depressed (with the engine
switch in ON" position).
(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
(shifting into overdrive possible)
4: Engine braking
(shifting into overdrive not possible)
3, 2: Stronger engine braking
L: Maximum engine braking
Automatic transmission
CY16055y
With the brake pedal depressed
(The engine switch must be in
ON" position.)
Shift normally.

164
(b) Normal driving1. Start the engine as instructed in How to start the engine" on page 370 in
Section 3. The transmission must be in
P" or N".
Vehicles with four−wheel drive control
When the four−wheel drive control and
switch knob is in L4" (low−speed position)
and center differential locked, the driving
pattern selector setting has no effect on
gear shift timing. (See Four−wheel drive
system (full−time four−w heel drive mod-
els)" on page 168 in this Section for in-
formation of the four−wheel drive control.)
Vehicles with multi−mode control
When the multi−mode control switch knob
is in L4" (low−speed position, four−wheel
drive) and center differential locked, the
driving pattern selector setting has no ef-
fect on gear shift timing. (See Four−wheel
drive system (multi−mode four−wheel drive
models)" on page 171 in this Section for
information of the multi−mode control.) 2. With your foot holding down the brake
pedal, shift the selector lever to D".
When the lever is in the D" 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.
Two−wheel drive models
Always use the D" position for better fuel
economy and quieter driving. If the engine
coolant temperature is low, the transmis-
sion will not shift into the overdrive gear
even in the D" position.
Vehicles with four−wheel drive control
Always use the D" position for better fuel
economy and quieter driving. If the engine
coolant temperature is low or when the
four−wheel drive control switch knob is in
L4" (low−speed position) and center dif-
ferential locked, the transmission will not
shift into the overdrive gear even in the
D" position. (See Four−wheel drive sys-
tem (full−time four−wheel drive models)"
on page 168 in this Section for informa-
tion of the four−wheel drive control.) Vehicles with multi−mode control
Always use the D" position for better fuel
economy and quieter driving. If the engine
coolant temperature is low or when the
multi−mode control switch knob is in L4"
(low−speed position, four−wheel drive) and
center differential locked, the transmission
will not shift into the overdrive gear even
in the D" position. (See Four−wheel drive
system (multi−mode four−w
heel drive
models)" on page 171 in this Section for
information of the multi−mode control.)
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.
If the automatic locking operation linked
with the shift position is set, all the side
doors and back door are automatically
locked when the shift lever is moved out
of the P" position with the engine running
and all the side doors and back door are
closed. For details, see Automatic door
locking and unlocking functions" on page
25 in Section 1−2.

165
(c) Using engine braking
To use engine braking, you can downshift
the transmission as follows:
Shift into the 4" position. The trans-
mission will downshift to fourth gear
and engine braking will be enabled.
Shift into the 3" position. The trans-
mission will downshift to third 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
4.0 L V6 (1GR−FE) engine 133km/h(83mph)
4.7 L V8 (2UZ−FE) engine 139km/h(86mph)
Four−wheel drive models 4.0 L V6 (1GR−FE) engine
Multi−mode control switch knob
at H2" or H4" 133km/h(83mph)
Multi−mode control switch knob
at L4" 51km/h(31mph) 4.7 L V8 (2UZ−FE) engine
Four−wheel drive control switch
knob at H4" 139km/h(86mph)
Four−wheel drive control switch
knob at L4" 54km/h(34mph)
Shift into the 2" 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 models4.0 L V6 (1GR−FE) engine 88km/h(54mph)
4.7 L V8 (2UZ−FE) engine 94km/h(58mph)
Four−wheel drive models 4.0 L V6 (1GR−FE) engine
Multi−mode control switch knob
at H2" or H4" 88km/h(54mph)
Multi−mode control switch knob
at L4" 34km/h(21mph) 4.7 L V8 (2UZ−FE) engine
Four−wheel drive control switch
knob at H4" 94km/h(58mph)
Four−wheel drive control switch
knob at L4" 36km/h(22mph)Shift into the L" 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 models4.0 L V6 (1GR−FE) engine 42km/h(26mph)
4.7 L V8 (2UZ−FE) engine 40km/h(25mph)
Four−wheel drive models 4.0 L V6 (1GR−FE) engine
Multi−mode control switch knob
at H2" or H4" 42km/h(26mph)
Multi−mode control switch knob
at L4" 16km/h(9mph)