check engine TOYOTA T100 1997 Owners Manual

14
CAUTION!
Do not fill a fuel container on a plas-
tic truck bed liner, a rubber truck
bed mat, or any other insulating
material. A static electricity charge
could cause a spark and fire haz-
ard. The proper procedure is to
place an approved fuel container
on the ground away from the truck for filling.
2. To remove the fuel tank cap, turn
the cap slowly counterclockwise,
then pause slightly before remov-
ing it. after removing the cap, hang
it on the cap hanger.
It is not unusual to hear a slight swoosh
when the cap is opened. When installing,
turn the cap clockwise till you hear a click.
5VZ-FE engineÐ
If the cap is not tightened 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 tightened se-
curely to prevent fuel spillage in
case of an accident.
Use only a genuine Toyota fuel
tank cap for replacement. It has a
built in check valve to reduce fuel tank vacuum.

57
NOTICE
Do not remove the thermostat inthe engine cooling system as this
may cause the engine to overheat. The thermostat is designed tocontrol the flow of coolant to keep
the temperature of the engine
within the specified operatingrange.
Do not continue driving with an
overheated engine. See If yourvehicle overheatsº in Part 4.
The oil pressure gauge indicates en-
gine oil pressure when the ignition is
on. Check it while driving to make sure
that the needle is in the proper range.
If the oil pressure should stay below the
normal range, pull off the road to a safe
place to stop the engine immediately. Call
a Toyota dealer or qualified repair shop for
assistance.
Oil pressure may not build up when the oil
level is too low. The oil pressure gauge is not designed to indicate oil level, and the
oil level must be checked using the leveldipstick.
NOTICE
Do not drive the vehicle with oil pressure below the normal range
until the cause is fixed-it may ruin the engine.
Oil pressure gauge

58
The voltmeter tells whether the battary
is charged or discharged. Check it
while the engine is runningÐthe
needle should always indicates as
shown above.
If the needle reads below or above the normal range while the engine is running,
it indicates the charging system needs im-
mediate repair.
However, it is normal for the needle to
drop below the normal range during en-
gine starting.The tachometer indicates engine
speed in thousands of rpm (revolu-
tions per minute). Use it while driving
to select correct shift points and to
prevent engine lugging and overfeed- ing.
Driving with the engine running too fast
causes excessive engine wear and poor
fuel economy. Remember, in most cases
the slower the engine speed, the greater
the fuel economy.
NOTICE
Do not let the indicator needle get into the red zone. This may cause
severe engine damage.
The odometer records the total dis-
tance the vehicle has been driven. The
trip meter may be set to zero to record
the distance on each trip. To reset the
trip meter, press the trip meter reset knob.
The black digits on white indicate tenths of kilometers or miles.
Odometer and trip meter
Tachometer
Voltmeter

60(a) Brake System Warning Light This light has the following functions: Parking brake reminder
If this light is on, make sure the parking
brake is
fully released. The light should go
off.
Low brake fluid level warning
If this light comes on and stays on while
you are driving, slow down and pull off the
road. Then stop the vehicle carefully.There may be a problem somewhere in
the brake system. Check the fluid level of
the see-through reservoir.
To make sure the parking brake has not
caused the warning light to come on,
check to see that the parking brake is fully
released.
If the brake fluid level is low...
At a safe place, test your brakes by start-
ing and stopping. If you judge that the brakes still work
adequately, drive cautiously to yournearest dealer or shop for repairs.
If the brakes are not working, have the
vehicle towed in for repairs. (For tow-
ing information, see Part 4.)
It is dangerous to continue driving
normally when the brake fluid level
is low. CAUTION
!
If the brake fluid level is correct...
Have the warning system checked by
your Toyota dealer.
(b) Seat Belt Reminder Light and Buzzer
Once the ignition key is turned to ONº or
STARTº, the reminder light and buzzer
come on if the driver's seat belt is not fas- tened. Unless the driver fastens the belt,
the light stays on and the buzzer stops af-
ter about 4 to 8 seconds.
(c) Discharge Warning Light
This light warns that the battery is being discharged.
If it comes on while you are driving, there
is a problem somewhere in the charging system. The engine ignition will continue to oper-
ate, however, until the battery is dis-
charged. Turn off the air conditioning,
blower, ra
dio, ect., and drive directly to the
nearest Toyota dealer or repair shop.
NOTICE
Do not continue driving if the engine drive belt is broken or loose.
(d) Low Oil Pressure Warning Light
This light warns that the engine oil pres-
sure is too low.
If it flickers or stays on while you are
driving, pull off the road to a safe place
and stop the engine immediately. Call a
Toyota dealer or qualified repair shop forassistance.
The light may occasionally flicker when
the engine is idling or it may come on brief-
ly after a hard stop. There is no cause for concern if it then goes out when the en-
gine is accelerated slightly.
The light may come on when the oil level
is extremely low. It is not designed to indi- cate low oil level, and the oil level must be checked using the level dipstick.

61
NOTICE
Do not drive the vehicle with the warning light onÐeven for one
block. It may ruin the engine.
(e) 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.
(f) Malfunction Indicator Lamp
This lamp comes on in the following cases.
a. The fuel tank is completely empty. (See Fuel gaugeº in Chapter 1-5 for in-structions.)
b. The fuel tank cap is not tightened se-
curely. (See Fuel tank capº in Chapter
1-2 for instructions.)
c. There is a problem somewhere in your
engine or automatic transmission electri- cal system.
If it comes on while you are driving in case
b, have your vehicle checked/repaired by
your Toyota dealer as soon as possible. (g) ABSº Warning Light
This light warns that there is a problem
somewhere in your anti-lock brake sys-tem.
If the light comes on while you are driving,
have your vehicle checked by your T
oyota
dealer as soon as possible.
The light will come on when the ignition key is turned to the ONº position. After
about 3 seconds, the light will go off. When the ABSº warning light is on (and
the brake system warning light is off), thebrake system operates conventionally but
anti-lock brake system is not assistingbrake performance so that the wheels can
lock-up during sudden braking or braking
on slippery road surfaces.
(h) SRS Airbag Warning Light
This light will come on when the ignition
key is turned to the ACCº or ONº posi- tion. After about 6 seconds, the light will
go off. This means the airbag system is
operating properly.
The warning light system monitors the
front airbag sensors, center airbag sensor
assembly, inflator, warning light, intercon-
necting wiring and power sources. If either of the following conditions occurs, this indicates a malfunction somewhere in the 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 when the igni-
tion key is turned to the ACCº or ONº
position or remains on. The light comes on while driving.
(i) Light Reminder Buzzer
This buzzer will sound if the driver's door is opened while the ignition switch isturned to the LOCKº position with the
headlight
switch on. Removing the key will
not stop the buzzer as long as the head- light switch is on.
(j) Key Reminder Buzzer
This buzzer reminds you to remove the
key when you open the driver's door with the ignition key in the ACCº or LOCKº position.

62(k) Unengaged Parkº Warning Light
(vehicles with automatic tranmis- sion)
This light warns that the transmission
Parkº mechanism is not engaged. If the
front drive control lever is in the Nº posi-
tion while the selector lever is in the Pº
position, the transmission will disengage
and the wheels will not lock.
To restore the park function, shift
the four-wheel drive control lever
out of Nº, or the vehicle can move. CAUTION
!
(l) Automatic Transmission Fluid Tem- perature Warning Light
This light warns that the automatic trans- mission fluid temperature is too high.
If this light comes on while you are driving,
slow down and pull off the road. Stop the
vehicle at a safe place and put the selector
lever in Pº. With the engine idling, 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. (m)Low Windshield Washer Fluid
Level Warning Light (Canada)
The light warns that the windshield wash-
er fluid level is too low. Add washer fluid at
your earliest opportunity. (For instruc-
tions, see Adding washer fluidº in Chap-ter 7-3.)
CHECKING SERVICE REMINDER INDI-
CATORS (except the low fuel level
warning light)
1. Apply the parking brake.
2. Turn ignition key to ACCº. The SRS airbag warning light should
come on. It goes off after about 6 sec- onds.
3. Turn the ignition key to ONº, but do not start the engine.
All the service reminder indicators ex-
cept the SRS airbag warning light
should come on. The ABSº warning
light goes off after about 3 seconds.
If any service reminder indicator or warn-
ing buzzer does not function as describedabove, either the bulb is burned out or the
circuit is in need of repair. Have it checked
by your Toyota dealer as soon as pos- sible.

67
(f) Good driving practice
If the transmission is repeatedly up-
shifted and downshifted between third
gear and overdrive when climbing a
gentle slope, the overdrive switch
should be turned off. Be sure to turn the switch on immediately afterward.
When towing a trailer, in order to main-
tain engine braking efficiency, do notuse overdrive.
Always keep your foot on the brake
pedal while stopped with the engine
running. This prevents the vehicle
from creeping. CAUTION
!
NOTICE
Do not hold the vehicle on an upgrade with the accelerator pedal.
It can cause the transmission tooverheat. Always use the brake pedal or parking brake.
(g) Rocking your vehicle if stuck
If you rock your vehicle to make it
out when it becomes stuck in snow,
mud, sand, etc., first check that
there is no physical object or people
around the vehicle. During opera-
tion, the vehicle may suddenly
move forward or backward causing
injury or damage to nearby people
or objects. CAUTION
!
NOTICE
If you rock your vehicle, observe the following precautions to prevent
damage to the transmission andother parts.
Do not depress the acceleratorpedal while shifting the selector
lever or before the transmission is
completely shifted to forward or
reverse gear.
Do not race the engine and avoidspinning the wheels.
If your vehicle remains stuck after
rocking the vehicle several times,
consider other ways such as tow-ing.

73
To avoid accidental cruise control
engagement, keep the CRUISE
ON-OFFº switch off when not using
the cruise control. CAUTION
!
SETTING AT A DESIRED SPEED
On vehicles with automatic transmission,
the transmission must be in Dº beforeyou set the cruise control speed.
Bring your vehicle to the desired speed, push the lever down in the SET/COASTº
direction and release it. This sets the ve-
hicle at that speed. If the speed is not sat-
isfactory, tap the lever up for a faster
speed, or tap it down for a slower speed.
Each tap changes the set speed by 1.6
km/h (1.0 mph). You can now take your
foot off the accelerator pedal.
If you need acceleration Ð for example,
when passingÐdepress the accelerator
pedal enough for the vehicle to exceed the
set speed. When you release it, the ve-
hicle will return to the speed set prior to the
acceleration.
For manual transmission:
While driving with the cruise control
on, do not shift to neutral without
depressing the clutch pedal, as this
may cause engine racing or overrev-ing. CAUTION
!
CANCELLING THE PRESET SPEED
You can cancel the preset speed by:
a. Pulling the lever in the CANCELº di- rection and releasing it.
b. Depressing the brake pedal.
c. Depressing the clutch pedal (manual transmission).
If the vehicle speed falls below about 40
km/h (25 mph), the preset speed will auto-
matically cancel out.
If the vehicle speed drops 16 km/h (10 mph) below the preset speed, the presetspeed will also automatically cancel out.
If the preset speed automatically cancels
out other than for the above cases haveyour vehicle checked by your Toyota deal-
er at the earliest opportunity. RESETTING AT A FASTER SPEED
Press the control lever upward in the
RES/ACCº direction and hold it. Release
the lever when the desired speed is at- tained.
While the lever is held upward, the
vehicle will gradually gain speed.
However, a faster way to reset is to accel-
erate the vehicle and then press the con- trol lever downward in the SET/COASTº direction.
RESETTING AT A SLOWER SPEED
Press the control lever downward in the SET/COASTº direction and hold it. Re-
lease the lever when the desired speed is
attained. While the lever is held, the ve-
hicle speed will gradually decrease.
However, a faster way to reset is to de-
press the brake pedal and then press the
control lever downward in the SET/
COASTº direction.
On vehicles with automatic transmission,
even if you turn off the overdrive switch with the cruise control on, engine braking
will not be applied because the cruise con-
trol is not cancelled. To decrease the ve-
hicle speed, reset to a slower speed with
the cruise control lever or depress the brake pedal. If you use the brake pedal, cruise control is cancelled.

111
A large amount of unburned gasesflowing into the three-way
catalytic converter may cause it tooverheat and create a fire hazard. To prevent this and other damage,observe the following precautions:
Use only unleaded gasoline.
Do not drive with an extremelylow fuel level; running out of fuelcould cause the engine to mis-
fire, creating an excessive load
on the three-way catalytic con-verter.
Do not allow the engine to run at
idle speed for more than 20 min-utes.
Avoid racing the engine.
Do not push-start or pull-startyour vehicle.
Do not turn off the ignition while
the vehicle is moving.
NOTICEKeep your engine in good run-ning order. Malfunctions in the
engine electrical system, elec-tronic ignition system/distributorignition system or fuel systems
could cause an extremely high
three-way catalytic convertertemperature.
If the engine becomes difficult to
start or stalls frequently, take your
vehicle in for a check-up as soon
as possible. Remember, your
Toyota dealer knows your vehicleand its three-way catalytic
converter system best.
To ensure that the three-way cat-alytic converter and the entire
emission control system operate
properly, your vehicle must re-ceive the periodic inspections re-
quired by the Toyota Maintenance
Schedule. For scheduled mainte- nance information, refer to the
separate Owner's Manual Sup- plement/Maintenance Scheduleº.
CAUTION!
Avoid inhaling the engine exhaust.
It contains carbon monoxide,
which is a colorless and odorless
gas. It can cause unconsciousness
or even death.
Make sure the exhaust system has
no holes or loose connections. The
system should be checked from
time to time. If you hit something,
or notice a change in the sound of
the exhaust, have the system
checked immediately.
Do not run the engine in a garage or
enclosed area except for the time
needed to drive the vehicle in or
out. The exhaust gases cannot es-
cape, making this a particularly
dangerous situation.
Do not remain for a long time in a
parked vehicle with the engine run-
ning. If it is unavoidable, however,
do so only in an unconfined areaand adjust the heating or cooling
system to force outside air into the vehicle.
Engine exhaust cautions

11 3
The diluting ingredients evaporate out
when the vehicle is then driven at high
speeds, as on an expressway, making itappear that oil is excessively consumed
after driving as high speeds.
IMPORTANCE OF ENGINE OIL LEVEL CHECK
One of the most important points in proper vehicle maintenance is to keep the engine
oil at the optimum level so that oil function
will
not be impaired. Therefore, it is essen-
tial that the oil level be checked regularly.
Toyota recommends that the oil level bechecked every time you refuel the vehicle.
Failure to check the oil level
regularly could lead to serious
engine trouble due to insufficient oil.
NOTICE
For detailed information on the oil level
check, see Checking the engine oil levelº
in Chapter 7-2.
Your engine is fitted with twin ground elec- trode spark plugs.
Use only twin ground electrode
spark plugs for your engine
performance.
NOTICE
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 fail, the other w ill 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 no more!
Twin ground electrode spark
plugs (5VZ-FE engine) Brake system