light TOYOTA 4RUNNER 1997 Service Manual

11 7
4. The three-digit code should be on thedisplay.
Push SCANº. The display will read Ð.
5. Wait for 10 seconds until the security system is deactivated and the display goes dark. If you pushed any wrong buttons, Errº and the number of errors you have made will appear on the display
before SECº does. Go back to step 2and try again. If the display returns to
Ð while you are entering the code,
go back to step 3.
NOTICE
A tenth error will activate the anti-theft system and HELPº will
appear on the display. The audiosystem will be completely inoperable. At this time, theanti-theft light also comes on. If this
occurs, contact your Toyota dealer.
Reactivating a disabled audio system
1. Turn the ignition switch to ACCº.
2. While you are holding in the  ~º side of
TUNEº, push 1º.
The display will read ---º.
On some models,  º and  º will also
turn on.

11 8
3. Input the existing three-digit code.
You have 10 seconds to enter each digit. For example, 209º:
To set the first digit: Push 1º until the digit
you want appears on the display.
To set the second digit: Push 2º until the
digit you want appears on the display.
To set the third digit: Push 3º until the digit
you want appears on the display.4. The three-digit code should be on thedisplay.
Push and hold in SCANº until the display
goes dark. (At first, SECº will appear on
the display.) If you pushed any wrong buttons, Errº and the number of errors you have made will appear on the display
before SECº does. Go back to step 2and try again. If the display returns to
--- while you are entering the code,
go back to step 3.
To make sure the security code has been accepted, turn the ignition to LOCKº andthen
back to ACCº. SECº should appear
on the display.
NOTICE
A tenth error will activate the anti-theft system and HELPº will
appear on the display. The audiosystem will be completely inoperable. At this time, theanti-theft light also comes on. If this
occurs, contact your Toyota dealer.

11 9
NOTICE
To ensure the correct audio system operation:
Be careful not to spill beveragesover the audio system.
Do not put anything other than acassette tape or Compact Disc
into the slot.
ILLUMINATION CONTROL LOGIC
On some audio-units, when the instru-
ment panel lights are on, the letters on op-
erable buttons of the mode in current use
light up together with the mode selectionand eject buttons. RADIO RECEPTION
Usually, a problem with radio reception
does not mean there is a problem with
your radioÐit 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, and 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 driving stationsÐGenerally,
the effective range of FM is about 40 km
(25 miles). Once outside this range, you
may notice fading and drifting, which in- crease with the distance from the radio
transmitter. They are often accompanied by distortion.
Multi-pathÐFM signals are reflective,
making it possible for two signals to reach
your antenna at the same time. If this hap-
pens, the signals will cancel each other
out, causing a momentary flutter or loss of
reception.
Static and flutteringÐThese occur when
signals are blocked by buildings, trees, or other large objects. Increasing the bass
level may reduce static and fluttering.
Station swappingÐIf 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 original
signal can be picked up again. AM FadingÐAM broadcasts are reflected by the upper atmosphere-especially atnight. These reflected signals can inter-
fere with those received directly from the radio station, causing the radio station tosound alternately strong and weak.
Station interferenceÐWhen a reflected
signal and a signal received directly from a radio station are very nearly the same
frequency, they can interfere with each
other,
making it difficult to hear the broad-
cast.
StaticÐAM is easily affected by external sources of electrical noise, such as high
tension power lines, lightening, or electri-cal motors. This results in static.
CARING FOR YOUR CASSETTE PLAY-
ER AND TAPES
For high performance from your cassette
player and tapes:
Clean the tape head and other parts regu-
larly. A dirty tape head or tape path can de-
crease sound quality and tangle your
cassette tapes. The easiest way to
clean them is by using a cleaning tape.
(A wet type is recommended.)
ÐCar audio system operating hints

120Use high-quality cassettes.
Low-quality cassette tapes can cause
many problems, including poor sound, inconsistent playing speed, and
constant auto-reversing. They can
also get stuck or tangled in the cas-
sette player.
Do not use a cassette if it has been
damaged or tangled or if its label is
peeling off.
Do not leave a cassette in the player if
you are not listening to it, especially if it is hot outside.
Store cassettes in their cases and out
of direct sunlight.
Avoid using cassettes with a total play-
ing time longer than 100 minutes (50
minutes per side). The tape used in
these cassettes is thin and could get
stuck or tangled in the cassette player.
CARING FOR YOUR COMPACT DISC
PLAYER AND DISCS Use only compact discs labeled as shown.
Extremely high temperatures can
keep your compact disc player from working. On hot days, use the air con-
dition to the vehicle interior before you
listen to a disc.
Bumpy road or other vibrations maymake your compact disc player skip.
If moisture gets into your compact disc
player, you may not hear any sound even though your compact disc player
appears to be working. Remove thedisc from the player and wait until it dries.
Handle compact discs carefully, espe-
cially when you are inserting them
Hold them on the edge and do not
bend them. Avoid getting fingerprints
on them, particularly on the shiny side.
Dirt, scrapes, warping, pin holes, or
other disc damage could cause the
player to skip or to repeat a section of
a track. (To see a pin hole, hold the disc
up to the light.)
Remove discs from the compact disc
player when you are not listening to
them. S tore them in their plastic cases
away from moisture, heat, and direct sunlight.
To clean a compact disc: Wipe it with a
soft, lint-free cloth that has been damp-
ened with water. Wipe in a straight line
from the center to the edge of the disc (not
in circles). Dry it with another soft, lint-
free cloth. Do not use a conventional re- cord cleaner or anti-static device.

Part 1Clock
129
OPERATION OF INSTRUMENTSAND CONTROLSÐ
Chapter 1-8 Other equipment
Clock
Cigarette lighter and ashtray
Glovebox
Auxiliary holder
Auxiliary box
Cup holder
Tie-down hooks
Luggage cover
Floor mat
The digital clock indicates the time.
The key must be in the ``ACCº or ``ON'' position.
To reset the hour: Push the Hº button.
To reset the minutes: Push the Mº button.
If quick adjustment to a full hour is de- sired, push the :00º button. When the instrument panel lights are turned
on, the brightness of the time indi-
cation will be reduced.
For example, if the :00º button is de-
pressed when the time is between
1:01Ð1:29, the time will change to 1:00.
If the time is between 1:30Ð1:59, the time
will change to 2:00. Once the electrical power source has
been disconnected from the clock, the
time is automatically set to 1:00 (oneo'clock). When the instrument panel lights turned
on, the brightness of the time indication
will be reduced.

130
CIGARETTE LIGHTER
To use the cigarette lighter, press it in.
When it becomes heated, it automati-
cally pops out ready for use.
If the engine is not running, the key must be in the ACCº position.
Do not hold the cigarette lighter pressed in.
Use a Toyota genuine cigarette lighter or equivalent for replacement.ASHTRAY
To use the ashtray, pull it out. When finished with your cigarette, thor-
oughly extinguish it in the ashtray to pre-
vent other cigarette butts from catching
fire. After using the
ashtray, close the ash-
tray cover completely.
To remove the ashtray, press down on the lock spring plate and pull out.To reduce the chance of injury in
case of an accident or sudden stop
while driving, always close theashtray cover completely after use. CAUTION
!
To use the glovebox, do this.
To open: Pull the lever.
To lock: Insert the master key and turn it clockwise.
On some models, the glovebox light will come on when the glovebox is open withthe instrument panel lights on.
To reduce the chance of injury in
case of an accident or sudden stop,
always keep the glovebox door
closed while driving.
CAUTION
!
Cigarette lighter and ashtray
Glovebox

137
If your engine knocks...
If you detect heavy knocking even when
using the recommended fuel, or if you
hear steady knocking while holding a
steady sp
eed on level roads, consult your
Toyota dealer.
However, now and then, you may notice
light knocking for a short time while accel-
erating or d riving up hills. This is no cause
for concern.
GASOLINES CONTAINING DETER-
GENT ADDITIVES
Toyota recommends use of gasolines
that contain detergent additives to
avoid build-up of engine deposits.
For further details, ask your Toyota dealer
or a local gasoline retailer.
GASOLINES CONTAINING MTBE
Gasolines that contain MTBE (Methyl
Tertiary-Butyl Ether) are available in
the market. If you use a gasoline mixed
with MTBE, make certain that it does
not contain more than 15% of MTBE.
If the use of gasolines containing MTBE causes poor driveability and/or poor fuel
economy, you should discontinue the use
of fuels containing MTBE. GASOLINES CONTAINING ALCOHOL
If the use of gasohol in your T
oyota, be
sure that it is u nleaded, has an octane
rating no lower than 87 and does not
contain more than 10% ethonol.
Gasohol is a mixture of gasoline and etha-
nol.
Toyota does not recommend the use of
gasolines containing m ethonol. If you use
gasoline containing methonol, use only
gasoline meeting the requirements above
and also containing less than 5% metha-
nol with cosolvents and corrosion inhibi-
tors for methanol.

Do not use gasohol other thanstated above. It will cause fuel
system damage or vehicle perfor- mance problems.
If driveability problems are en-
countered (poor hot starting, va-porizing, engine knock, etc.), dis-continue the use.
Take care not to spill gasohol dur-
ing refueling. Gasohol may causepaint damage.
NOTICE
FUEL TANK CAPACITY
70 L (18.5 gal., 15.4 Imp. gal.)

141
Your engine is fitted with twin ground electrode spark plugs.
NOTICE
Use only twin ground electrode spark plugs for your engine perfor-
mance.
TANDEM MASTER CYLINDER BRAKE SYSTEM
The tandem master cylinder brake sys-
tem is a hydraulic system with two sepa-
rate sub-systems. If either sub-system
should fa il, the other will still work. Howev-
er, the pedal will be harder to press, and
your stopping distance will be longer.
Also, the brake system warning light may come on.
CAUTION!
Do not drive your vehicle with only a single brake system. Have your
brakes fixed immediately.
BRAKE BOOSTER
The brake booster uses engine vacuum to
power-assist the brakes. If the engine
should quit while you are driving, you can
bring the vehicle to a stop with normal
pedal pressure. There is enough reserve
vacuum for one or two stops - but nomore!
CAUTION!
Do not pump the brake pedal if the
engine stalls. Each push on the
pedal uses up your vacuum re- serve.
Even if the power assist is com-
pletely lost, the brakes will still
work. But you will have to push
the pedal hard-much harder than
normal. And your braking dis- tance will be longer
ANTI-LOCK BRAKE SYSTEM (with ABSº warning light)
The anti- lock brake system is designed to
automatically help prevent lock- up of the
wheels during sudden braking or braking on
slippery road surfaces. This assists in pro-
viding directional stability and steering per -
formance of the vehicle under these cir -
cumstances.
The anti- lock brake system becomes op-
erative after the vehicle has accelerated to
a speed in excess of approximately 10 km/h
(6 mph). It stops operating when the vehicle
decelerates to a speed below approximate-
ly 5 km/h (3 mph).
You may hear a sound in the engine
compartment for a few seconds when the
engine is started or just after the vehicle is started. This means that the anti-lock
brake system is in the self check mode,
and does not indicate a malfunction.
Twin ground electrode spark plugs (5VZ-FE engine)
Brake system

142
Effective way to press the ABSº brake
pedal: When the anti-lock brake system
function is in action, you may feel thebrake pedal pulsating and hear a noise.
In this situation, to let the anti-lock brake
system work for you, just hold the brake
pedal down more firmly. Do not pumpthe brake. This will result in reduced
braking performance.
The brake pedal pulsation caused by the
anti-lock brake system may indicate haz- ardous road surface conditions. Althoughthe anti-lock brake system assists in pro-
viding vehicle control, it is still important to
drive with all due care, because the anti-
lock brake system cannot overcome the
laws of physics that act on your vehicle: Braking capab ility is dependent on tire
friction with the road surface.
Even though the anti-lock brake sys-
tem is operating, a driver cannot main- tain full control on certain slippery road
surfaces, when cornering at highspeeds, or in violent maneuvers.
Avoid high speeds on wet roads. The
anti-lock brake system cannot elimi-
nate the risk of hydroplaning and lossof tire friction. Always maintain a safe distance from the
vehicle in
front of you. Compared with ve-
hicles not fitted with an anti-lock brake
system, your vehicle may require a longer
stopping distance in the following cases: Driving on rough, gravel or snow-cov-
ered roads.
Driving with tire chains installed.
Driving on roads where the road sur-
face is pitted or has other differencesin surface height.
CAUTION!
Do not use tires other than the
manufacturer 's designated tires, and
do not mix tires or wheels of different
sizes. You may prevent the antilockbrake system from operating at fulleffictiveness.
Vehicles with rear differential lock sys-
temÐThe anti-lock brake system does
not operate when the rear differential islocked. It is normal operation for the
ABSº warning light to be on at this time.Type A
Type B

143
ABSº warning light
This light comes on when the ignition key is turned to the ONº position. After about
3 seconds, the light will go off.
When the light is on with the rear dif
feren-
tial locked, it indicates the anti-lock brake
system will not operate.
If either of the following conditions occurs, this indicates a malfunction somewhere inthe parts monitored by the warning light
system. Contact your Toyota dealer as
soon as possible to service the vehicle. The light does not come on as de-
scribed above, or remains on.
The light comes on while driving with
the rear differential unlocked.
The light does not come on with the
rear differential locked.
The light comes on while driving. Even if the anti-lock brake system
should
fail, the brake system will still operate con-
ventionally. However, when the `ABS''
warning light is on (and the brake system
warning light is off), the anti-lock brake
system is not assisting brake perfor-mance so that the wheels can lock-up
during sudden braking or braking on slip-
pery road surfaces. Have your vehicle
checked by your Toyota dealer as soon as
possible
The brake pads wear limit indicators
on your disc brakes give a warning
noise w hen the brake pads are worn to
where replacement is required.
If you hear a squealing or scraping noise
while driving, have the brake pads
checked and replaced by your Toyota
dealer as soon as possible. Expensive ro-
tor damage can result if the pads are not
replaced when necessary.
Brake pad wear limit indicator