2005 TOYOTA 4RUNNER ecu

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CAUTION
When using the lower anchorages
for the child restraint system, be
sure that there are no irregular ob-
jects around the anchorages or that
the seat belt is not caught.
Push and pull the child restraint
system in different directions to be
sure it is secure. Follow all the
installation instructions provided by
its manufacturer.
Do not install a child restraint sys-
tem on the rear seat if it interferes
with the lock mechanism of the
front seats. Otherwise, the child or
front seat occupant(s) may be killed
or seriously injured in case of sud-
den braking or a collision.Lower anchorages for the child restraint
systems complying with the FMVSS225
or CMVSS210.2 specifications are
installed in the second seats.
The anchorages are installed in the seat
cushion of the right side seating position
and between the center and left side seat-
ing position.
Child restraint systems complying with the
FMVSS213 or CMVSS213 specification
can be fixed to these anchorages. In this
case, it is not necessary to fix the child
restraint system with a seat belt on the
vehicle.
1st lock
position
5th lock
position
CHILD RESTRAINT SYSTEM
INSTALLATION
1. Fold down the seatback. Make sure the rear seat legs are relocked into
place (folding down the seatback will
disengage them) by pushing down-
ward on the back of the seat. Adjust
the seatback to the 1st lock position
(most upright position) and then to
the 5th lock position.
Make sure the seat and seatback is
locked securely.
—Installation with child
restraint lower anchorages
(vehicles with third seats)

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3. Widen the slits of the seat cushion
slightly and confirm the position of
the lower anchorages near the but-
ton on the seatback.
4. Type A—Latch the hooks of lower straps onto the anchorages and
tighten the lower straps.
Type B—Latch the buckles onto the
anchorages.
For owners in Canada— The symbol on
a child restraint system indicates the pres-
ence of a lower connector system.
If your child restraint system has a top
strap, it should be anchored. (For the
installation of the top strap, see “—Using
a top strap” on page 110 in this Section.)
For installation details, refer to the instruc-
tion manual equipped with each product.CAUTION
When using the lower anchorages
for the child restraint system, be
sure that there are no irregular ob-
jects around the anchorages or that
the seat belt is not caught.
Push and pull the child restraint
system in different directions to be
sure it is secure. Follow all the
installation instructions provided by
its manufacturer.
After securing the child restraint
system, never recline the seat.
Do not install a child restraint sys-
tem on the second seat if it inter-
feres with the lock mechanism of
the front seats. Otherwise, the child
or front seat occupant(s) may be
killed or seriously injured in case
of sudden braking or a collision.When using the left side lower an-
chorages for the child restraint sys-
tem, do not sit in the center seat.
The performance of the center seat
belt cannot be brought out suffi-
ciently because the belt may be
highpositioned or the seat belt
may be loosefitting, posing the
risk of serious injury in the case of
collision.

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(f) Malfunction Indicator Lamp
This lamp comes on when the ignition
key is turned to the “ON” position and
goes off after the engine starts. This
means that the warning light system is
operating properly.
If the lamp remains on, or the lamp
comes on while driving, first check the
followings.
Empty fuel tank
If the fuel tank is empty, refuel immedi-
ately.
Loose fuel tank cap
If the fuel tank cap is loose, securely
tighten it.
These cases are temporary malfunctions.
The malfunction indicator lamp will go off
after taking several driving trips.
If the lamp does not go off even after
several trips, contact your Toyota dealer
as soon as possible.
If the fuel tank is not empty or the fuel
tank cap is not loose...
There is a problem somewhere in the
engine, emission control system, elec-
tronic throttle control system, automatic
transmission electrical system or warn-
ing light system itself. 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 ignition key 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 366
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.

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Fourwheel drive models
1GRFE engineMultimode drive control
switch knob at “H2” or “H4”“3” 146 km/h (90 mph) . . . . .
“2” 100 km/h (62 mph) . . . . .
“L” 58 km/h (36 mph) . . . . . .
Multimode drive control
switch knob at “L4” “3” 57 km/h (35 mph) . . . . . .
“2” 39 km/h (24 mph) . . . . . .
“L” 22 km/h (14 mph) . . . . . .
2UZFE engine Fourwheel drive control
switch knob at “H4”“3” 146 km/h (90 mph) . . . . .
“2” 100 km/h (62 mph) . . . . .
“L” 58 km/h (36 mph) . . . . . .
Fourwheel drive control
switch knob at “L4” “3” 57 km/h (35 mph) . . . . . .
“2” 39 km/h (24 mph) . . . . . .
“L” 26 km/h (16 mph) . . . . . . Do not continue hill climbing or
hard towing for a long time in the
“3”, “2” or “L” position. This may
cause severe automatic transmis-
sion damage from overheating. To
prevent such damage, “4” position
should be used in hill climbing or
hard towing.
(e) 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
“R” position.
NOTICE
Never shift into reverse while the ve-
hicle is moving.
Vehicles with rear view monitor system—
When the selector lever is shifted into “R”
position with the ignition switch in the
“ON” position, rear view monitor system
will activate. For instructions, see “Rear
view monitor system” on page 254 in Sec-
tion 1 −10. (f) 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 “P” posi-
tion.
CAUTION
Never attempt to move the selector
lever into “P” position under any cir-
cumstances while the vehicle is mov-
ing. Serious mechanical damage and
loss of vehicle control may result.
If the automatic unlocking operation linked
with the shift position is set, all the side
doors and back door are automatically un-
locked when the selector lever is moved
to the “P” position with the ignition switch
is in the “ON” position. For details, see
“—Automatic door locking and unlocking
functions” on page 25 in Section 1 −2.

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Use this for maximum power and traction.
Use this for hard pulling in situations the
vehicle cannot negotiate even in the “L4”
(low speed position, center differential un-
locked) mode. Also, using this mode when
driving down steep off −road inclines will
help contribute to increased vehicle stabil-
ity.
The indicator light tells when the differen-
tial lock is engaged. Note that the differ-
ential is not still locked as long as the
indicator light remains off.
When the operation is not completed, the
indicator blinks. If the indicator light does
not go off when you push out the center
differential lock switch, drive straight
ahead while accelerating or decelerating,
or drive in reverse.
If the center differential lock system op-
eration is not completed within 5 seconds
while the cruise control system is set,
cancel the cruise control system. To can-
cel the cruise control system, see “Cruise
control” on page 193 in Section 1 −7.
If the indicator blinks even if doing so,
contact your Toyota dealer as soon as
possible. There may be a trouble in the
center differential lock system.
See “(b) Shifting procedure” for further in-
structions. SHIFTING BETWEEN “H4” (UNLOCKED)
AND “H4” (LOCKED)
To shift between unlock and lock
modes in “H4”, push the center differen-
tial lock switch.
SHIFTING BETWEEN “L4” (UNLOCKED)
AND “L4” (LOCKED)
To shift between unlock and lock
modes in “L4”, push the center differen-
tial lock switch.
SHIFTING BETWEEN “H4” AND “L4”
To shift from “H4” to “L4”,
bring the
vehicle to a complete stop with the brake
pedal held down with your foot, shift the
automatic transmission selector lever into
“N” and push and turn the four −wheel
drive control switch knob fully clockwise.
To shift from “L4” to “H4”, bring the
vehicle to a complete stop with the brake
pedal held down with your foot, shift the
automatic transmission selector lever into
“N” and turn the four −wheel drive control
switch knob fully counterclockwise. If the “4LO” (low speed four
−wheel drive)
indicator light continues to blink when you
operate the four −wheel drive control
switch knob to the “H4” or “L4” position,
drive forward or backward in a short dis-
tance, then stop the vehicle completely,
shift the automatic transmission selector
lever securely into “N” and operate the
switch knob again.
If the indicator continues to blink even if
doing so, contact your Toyota dealer as
soon as possible. There may be a trouble
in the four −wheel drive system.
CAUTION
Never operate the fourwheel drive
control switch knob if the wheels are
slipping. Stop the slipping or spin-
ning before operating.
(b) Shifting procedure

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The A.D.D. can be engaged or disen-
gaged by the shifting operations de-
scribed in “(c) Shifting procedure”.
You should drive in four −wheel drive for
at least 16 km (10 miles) each month.
This will assure that the front drive com-
ponents are lubricated. SHIFTING BETWEEN “H2” AND “H4”
(UNLOCKED)
To shift from “H2” to “H4” (unlocked),
reduce the vehicle speed to less than 100
km/h (62 mph) and turn the multi
−mode
control switch knob fully clockwise.
If the four −wheel drive indicator light con-
tinues to blink when you operate the mul-
ti −mode control switch knob from the “H2”
to the “H4” position, this reminds you that
the transfer mode is not securely in “H4”
mode. Drive straight ahead while acceler-
ating or decelerating.
If the four −wheel drive indicator light con-
tinues to blink and the buzzer sounds
when you operate the multi −mode control
switch knob from the “H2” to the “H4”
position, this reminds you that the transfer
mode is not in “H4” mode. Stop the ve-
hicle or reduce the vehicle speed to less
than 100 km/h (62 mph). Operate the
switch knob again. To shift from “H4” (unlocked) to “H2”,
turn the multi
−mode control switch knob
fully counterclockwise.
This can be done at any speed.
If the four −wheel drive indicator light con-
tinues to blink when you operate the mul-
ti −mode control switch knob from the “H4”
to the “H2” position, this reminds you that
the transfer mode is not securely in “H2”
mode. Drive straight ahead while acceler-
ating or decelerating, or drive forward or
backward in a short distance.
If the indicator light continues to blink
even if doing so, contact your Toyota
dealer as soon as possible. There may be
a trouble in the four −wheel drive system.
CAUTION
Never operate the multimode control
switch knob if the wheels are slip-
ping. Stop the slipping or spinning
before operating.
(b) A.D.D.
(automatic disconnecting
differential) (c) Shifting procedure

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REPLACING CONTROLLER BATTERY
For replacement, use a CR2025 lithium
battery or equivalent.
CAUTION
Special care should be taken that
small children do not swallow the re-
moved battery or components.
NOTICE
When replacing the battery, be care-
ful not to lose the components.
 Replace only with the same or
equivalent type of battery recom-
mended by a Toyota dealer.
 Dispose of used batteries according
to the local regulations.
Replace the battery by using the following
procedures:
1. Pull the case out while pushing the lock release button to the side.2. Remove the discharged battery.
3. Put a new battery with the positive (+)
side up.
Put in the case securely.

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NOTICE
Make sure that the positive side of
the controller battery is facing cor-
rectly.
 Do not replace the battery with wet
hands. Water may cause rust.
 Do not touch or move any compo-
nents inside of the controller, or it
may interfere with proper operation.
 Be careful not to bend the electrode
of the controller battery insertion
and that dust or oil does not ad-
here to the transmitter case.
 Close the battery case securely.
After replacing the battery, check that the
controller operates properly. If the control-
ler still does not operate properly, contact
your Toyota dealer.
NOTICE
To ensure correct audio system op-
erations:
Be careful not to spill beverages
over the audio system.
 Do not put anything other than a
cassette tape or compact disc into
the slot.
 The use of a cellular phone inside
or near the vehicle may cause a
noise from the speakers of the au-
dio system. This does not indicate
a malfunction.
RADIO RECEPTION
Usually, a problem with radio reception
does not mean there is a problem with
your radio—it is just the normal result of
conditions outside the vehicle.
For example, nearby buildings and terrain
can interfere with FM reception. Power
lines or telephone wires can interfere with
AM signals. And of course, radio signals
have a limited range. The farther you are
from a station, the weaker its signal will
be. In addition, reception conditions
change constantly as your vehicle moves. Here are some common reception prob-
lems that probably do not indicate a prob-
lem with your radio:
FM
Fading and drifting stations—Generally, the
effective range of FM is about 40 km (25
miles). Once outside this range, you may
notice fading and drifting, which increase
with the distance from the radio transmit-
ter. They are often accompanied by distor-
tion.
Multi
−path—FM signals are reflective,
making it possible for two signals to reach
your antenna at the same time. If this
happens, the signals will cancel each oth-
er out, causing a momentary flutter or
loss of reception.
Static and fluttering—These occur when
signals are blocked by buildings, trees, or
other large objects. Increasing the bass
level may reduce static and fluttering.
Station swapping—If the FM signal you
are listening to is interrupted or weak-
ened, and there is another strong station
nearby on the FM band, your radio may
tune in the second station until the origi-
nal signal can be picked up again.
Audio system operating hints