2005 TOYOTA 4RUNNER ecu

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Important information about your Toyota
Occupant restraint systems
Toyota encourages you and your family to take the time to
read Section 1−3 of this Owner’s Manual carefully. In
terms of helping you understand how you can receive the
maximum benefit of the occupant restraint systems this
vehicle provides, Section 1 −3 of this Owner ’s Manual is
the most important Section for you and your family to
read.
Section 1 −3 describes the function and operation concern-
ing seats, seat belts, SRS airbags and child restraint sys-
tems of this vehicle and some potential hazards you
should be aware of. These systems work together along
with the overall structure of this vehicle in order to provide
occupant restraint in the event of a crash. The effect of
each system is enhanced when it is used properly and
together with other systems. No single occupant restraint
system can, by itself, provide you or your family with the
equal level of restraint which these systems can provide
when used together. That is why it is important for you and
your family to understand the purpose and proper use of
each of these systems and how they relate to each other.
The purpose of all occupant restraint systems is to help
reduce the possibility of death or serious injury in the
event of a collision. None of these systems, either individ-
ually or together, can ensure that there is no injury in the
event of collision. However, the more you know about
these systems and how to use them properly, the greater
your chances become of surviving an accident without
death or serious injury.
Seat belts provide the primary restraint to all occupants of
the vehicle, and every occupant of the vehicle should wear
seat belts properly at all times. Children should always be
secured in child restraint systems that are appropriate for
their age and size. SRS (Supplemental Restraint System)
airbags are, as their names imply, designed to work with,
and be supplemental to, seat belts and are not substitutes
for them. SRS airbags can be very effective in reducing
the risk of head and chest injuries by preventing contact of
the head and chest with interior portions of the vehicle.

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SRS airbag deployment data
 SRS airbag system diagnostic data
If your vehicle is equipped with a vehicle stability control
(VSC) system, its Electronic Control Unit (ECU) may con-
tain another EDR. There are a variety of driving situations
which include activating the VSC under which the VSC
EDR will record certain information. The VSC EDR may
record some or all of the following information:
 Behavior of the vehicle
 Steering wheel angle
 Vehicle speed
 To what extent the accelerator pedal was depressed
 To what extent the brake pedal was applied
 To what extent the ECU controlled the condition of
the 4 wheels
 Vehicle stability control system di agnostic dataThe information above is intended to be used for the
purpose of improving vehicle safety performance. Unlike
general data recorders, the EDR does not record sound
data such as conversation between passengers.
Toyota will not disclose the data recorded in an EDR to a
third party except when:
 An agreement from the vehicle’s owner (or the leas-
ing company for a leased vehicle) is obtained
 Officially requested by the police or other authorities
 Used as a defense for Toyota in a law suit
 Ordered by the court
However, if necessary Toyota will:
 Use the data for research on Toyota vehicle safety
performance
 Disclose the data to a third party for research pur-
poses without disclosing details of the vehicle owner,
and only when it is deemed necessary
 Disclose summarized data cleared of vehicle identifi-
cation information to a non −Toyota organization for
research purposes

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The wireless remote control system is
designed to lock or unlock all the side
doors and back door, open the back
window or activate the “PANIC” mode
from a distance within approximately 1
m (3 ft.) of the vehicle.
When you operate any switch, push it
slowly and securely.
The wireless remote control transmitter is
an electronic component. Observe the fol-
lowing instructions in order not to cause
damage to the transmitter.
Do not leave the transmitter in places
where the temperature becomes high
such as on the dashboard.
Do not disassemble it.
Avoid knocking it hard against other
objects or dropping it.
Avoid putting it in water.
You can use up to 4 wireless remote con-
trol transmitters for the same vehicle.
Contact your Toyota dealer for detailed
information. If the wireless remote control transmitter
does not actuate the doors, back window
or alarm, operate from a normal distance:
Check for closeness to a radio trans-
mitter such as a radio station or an
airport which can interfere with normal
operation of the transmitter.
The battery may have been consumed.
Check the battery in the transmitter. To
replace the battery, see following
“—Replacing battery” on page 20.
If you lose your transmitter, contact your
Toyota dealer as soon as possible to
avoid the possibility of theft, or an acci-
dent. (See “If you lose your wireless re-
mote control transmitter” on page 351 in
Section 4.)
Locking operation
Unlocking operation
—Locking and unlocking
doors

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To lock and unlock all the side doors
and back door, push the switches of
the transmitter slowly and securely.
To lock: Push the “LOCK” switch. All the
side doors and back door are locked si-
multaneously. At this time one beep will
be heard, and the turn signal lights flash
once.
Check to see that all the side doors and
back door are securely locked.
If any of the side doors or the back door
is not securely closed, locking cannot be
performed by the “LOCK” switch and a
beep will sound continuously for 10 sec-
onds. However, if the key is in the ignition
switch, a beep will not sound.
To stop the buzzer, close all the side
doors and back door securely or push the
“UNLOCK” switch.
The buzzer can be disabled. For details,
contact your Toyota dealer.
To unlock: Push the “UNLOCK” switch
once to unlock the driver ’s door alone.
Pushing the switch twice within 3 seconds
unlocks all the side doors and back door
simultaneously. Each time the “UNLOCK”
switch is pushed, two beeps will be heard,
and the turn signal lights flash twice. This double switch operation to unlock all
the side doors and back door can be
changed to a single switch operation. For
details, contact your Toyota dealer.
When the “UNLOCK” switch is pressed,
the interior light, luggage compartment
light, ignition switch light and running
board lights (on some models) will come
on and remain on for about 15 seconds
before fading out. (For details, see “Interi-
or light” on page 134, “Luggage compart-
ment light” on page 135, “Ignition switch
light” on page 136 and “Running board
lights” on page 137 in Section 1
−5.)
You have 30 seconds to open a door after
using the wireless remote unlock feature.
If a door is not opened by then, all the
side doors and back door will be automati-
cally locked again.
The timing for the automatic door lock
function can be changed. For details, con-
tact your Toyota dealer.
If the “LOCK” or “UNLOCK” switch is kept
pressed in, the locking or unlocking opera-
tion is not repeated. Release the switch
and then push again. The following adjustments can be made in
this system. For details, contact your
Toyota dealer.
Cancelling the wireless door locking or
unlocking function
Cancelling the flash of the turn signal
lights
Changing the volume of beep sound

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2. Remove the discharged transmitter bat-
tery by ballpoint pen.
Insert the tip of ballpoint pen at the
guide groove and lift as shown in the
above illustration.
NOTICE
Do not bend the terminals.
3. Put in a new transmitter battery withpositive (+) side up.
Close the transmitter case securely.
NOTICE
 Make sure the positive side and
negative side of the transmitter bat-
tery are faced correctly.
 Do not replace the battery with wet
hands. Water may cause unexpected
rust.
 Do not touch or move any compo-
nents inside the transmitter, or it
may interfere with proper operation.
Be careful not to bend the electrode
when inserting the transmitter bat-
tery and that dust or oils do not
adhere to the transmitter case.
 Close the transmitter case securely.
After replacing the battery, check that the
transmitter operates properly. If the trans-
mitter still does not operate properly, con-
tact your Toyota dealer.

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To normalize the back door, unlock it with
the key, remote control transmitter or pow-
er door lock switch, see “—Locking and
unlocking doors” on page 16 and “Side
doors” on page 22 in this Section.
Make sure that the back door opens. If
the back door cannot be opened properly,
have it checked by your Toyota dealer.
The back door can be locked or unlocked
in the following ways.
All the side doors and back door lock
and unlock simultaneously with the
back door. Insert the key into the key-
hole, turn it clockwise to lock and turn
it counterclockwise to unlock.
Operate the power door lock switch.
(See “Side doors” on page 22 in this
Section.)
Operate the wireless remote control.
(See “—Locking and unlocking doors”
on page 16 in this Section.)
All the side doors and back door are
locked and unlocked simultaneously
with the driver’s door. (See “Side
doors” on page 22 in this Section.)
If the battery terminal is disconnected and
reconnected, the back door will be auto-
matically locked. Be careful not to lock
your keys in the vehicle. When all the side doors and back door
are unlocked simultaneously with a key,
the interior light, luggage compartment
light, ignition switch light and running
board lights (on some models) will come
on and remain on for about 15 seconds
before fading out. (For details, see “Interi-
or light” on page 134, “Luggage compart-
ment light” on page 135, “Ignition switch
light” on page 136 and “Running board
lights” on page 137 in Section 1
−5.)
The back window can be opened and
closed with the key operation in the back
door keyhole. (For details, see “Power
back window” on page 30 in this Section.)
When closing the back door, the inside
strap can be used to make the reach
easier.
To close the back door, lower it and press
down on it. After closing the back door,
try pulling it up to make sure it is secure-
ly closed.
Back door closer: When the back door
has not been fully closed, it is automati-
cally closed completely.
See “—Stowage precautions” on page 305
in Section 2 for precautions when loading
luggage.

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CAUTION
Keep the back window and back
door closed while driving. This not
only keeps the luggage from being
thrown out but also prevents ex-
haust gases from entering the ve-
hicle.
Careful attention is needed so as
not to get your fingers trapped as
the back door automatically closes
when it has not been fully closed.
Never allow a child to operate the
back door.
NOTICE
To avoid damage to the back door
dampers, do not apply any force,
paint or let any other foreign matter
on them.
 Do not apply excessive force when
the back door closer is operating.
Otherwise, the back door closer
may become defective.
To open the hood:
1. Pull the hood lock release lever. The hood will spring up slightly.
CAUTION
Before driving, be sure that the hood
is closed and securely locked. Other-
wise, the hood may open unexpected-
ly while driving and an accident may
occur.
2. In front of the vehicle, pull up theauxiliary catch l ever and lift the
hood.
Before closing the hood, check to see that
you have not forgotten any tools, rags,
etc. Then lower the hood and make sure
it locks into place. If necessary, press
down gently on the front edge to lock it.
Hood

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3. The removed cap can be stored on
the back side of the fuel filler door.
Position the cap so that the hooks point
to the left and right or up and down, and
set it in the receptacle on the back side
of the door.
When installing the cap, turn the cap
clockwise until you hear a click. When
you hear the click, the cap is fully
closed.
If the cap is not installed securely, the
malfunction indicator lamp comes on.
Make sure the cap is tightened securely.
The indicator lamp goes off after driving
several times. If the indicator lamp does
not go off, contact your Toyota dealer as
soon as possible.
CAUTION
Make sure the cap is installed se-
curely to prevent fuel sp illage in
the event of an accident.
Use only a genuine Toyota fuel tank
cap for replacement. It is designed
to regulate fuel tank pressure.
NOTICE
To prevent damage to the cap, apply
force only in the turning direction to
the cap. Do not pull or pry it.
Sliding operation
Tilting operation
Electric moon roof