2001 TOYOTA LAND CRUISER check engine

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26
2. In front of the vehicle, pull up the auxiliary 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. Theft deterrent systemTo deter the vehicle theft, the system
is designed to give an alarm if any of
the side doors, back door or hood is
forcibly unlocked or opened or the bat-
tery terminal is disconnected and then
reconnected when the vehicle is locked.
The alarm blows the horn intermittently
and flashes the headlights and tail lights.SETTING THE SYSTEM
1. Turn the ignition key to the ”LOCK” position and remove it.
The indicator light will start flashing when
the key is removed from the ignition
switch. (See ”Engine immobiliser system”
for details.)
2. Have all passengers get out of the vehicle.
3. Close and lock all the side doors, back door and hood.
The indicator light will come on when all
the side doors, back door and hood are
closed and locked.

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If you need acceleration—for example,
when passing—depress the accelerator
pedal enough for the vehicle to exceed
the set speed. When you release it, the
vehicle will return to the speed set prior
to the acceleration.
CANCELLING THE PRESET SPEED
You can cancel the preset speed by:
a. Pulling the control lever in the ”CANCEL” direction and releasing it.
b. Depressing the brake pedal.
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 preset
speed will also automatically cancel out.
If the preset speed automatically cancels
out other than for the above cases, have
your vehicle checked by your Toyota deal-
er at the earliest opportunity. RESETTING TO A FASTER SPEED
Push the lever up in the ”RES/ACC” direc-
tion and hold it. Release the lever when
the desired speed is attained. While the
lever is held up, the vehicle will gradually
gain speed.
However, a faster way to reset is to ac-
celerate the vehicle and then push the
control lever down in the ”SET/COAST”
direction.
RESETTING TO A SLOWER SPEED
Push the lever down in the ”SET/COAST”
direction and hold it. Release the lever
when the desired speed is attained. While
the lever is held down, the vehicle speed
will gradually decrease.
However, a faster way to reset is to de-
press the brake pedal and then push the
control lever down in the ”SET/COAST”
direction.
Even if you downshift the transmission by
turning off the overdrive switch, with the
cruise control on, engine braking will not
be applied because the cruise control is
not cancelled. To decrease the vehicle
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.RESUMING THE PRESET SPEED
If the preset speed is cancelled by pulling
the control lever or by depressing the
brake pedal, pushing the lever up in the
”RES/ACC” direction will restore the speed
set prior to cancellation.
However, once the vehicle speed falls be-
low about 40 km/h (25 mph), the preset
speed will not be resumed.
CRUISE CONTROL FAILURE WARNING
If the ”CRUISE” indicator light in the
instrument cluster flashes when using the
cruise control, press the ”CRUISE
ON·OFF” button to turn the system off and
then press it again to turn it on.
If any of the following conditions then oc-
curs, there is some trouble in the cruise
control system.
The indicator light does not come on.
The indicator light flashes again.
The indicator light goes out after it
comes on.
If this is the case, contact your Toyota
dealer and have your vehicle inspected.

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126
Active traction control system indicator
light
The active traction control system auto-
matically helps control the spinning of
4 wheels which may occur when accel-
erating on slippery road surfaces, by
controlling the output of the brake and
engine. Thus, the system assists driver
to control the driving power of 4
wheels. When you turn the ignition
switch on, the active traction control
system always turns on automatically,
and the active traction control indicator
light will come on. The indicator light
will go off after a few seconds. When active traction control is applied,
the active traction control system indi-
cator light blinks.
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 active
traction control system is in the self
−
check mode, and does not indicate mal-
function. When the active traction control
system is operating, you may feel vibra-
tion or noise of your vehicle, caused by
operation of the brakes. This indicates the
system is functioning properly.
When getting the vehicle out of mud or
new snow, etc. the active traction control
system will help operate to prevent the
wheels from spinning.Active traction control system failure
warning
This light warns when there is a problem
somewhere in the active traction control
system.
If the “VSC/TRAC” warning light comes
on, have your vehicle checked by your
Toyota dealer as soon as possible.
Active traction control system

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The vehicle skid control system helps
provide comprehensive control of sys-
tems such as anti −lock brake, traction
control, engine control, etc. This sys-
tem automatically controls the output of
the brakes or engine to help prevent
the vehicle from skidding under adverse
conditions.
When you turn the ignition switch on, the
slip indicator light will come on. The slip
indicator light will go off after a few sec-
onds. If the vehicle is going to skid during driv-
ing, the slip indicator light flashes and an
alarm sounds intermittently.
The vehicle skid control system activates
when the vehicle speed is more than the
following speed. Four
−wheel drive control lever in “H”
15 km/h (9 mph)
. . . . . . . . . . . . . . . . . . . . . . . Four −wheel drive control lever in “L”
30 km/h (19 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 vehicle
skid control is in the self −check mode and
does not indicate a malfunction.Pushing the center differential lock button
automatically turns the vehicle skid control
system off. At this time, the “VSC OFF”
indicator comes on with the center differ-
ential lock indicator light. (For details, see
“Four −wheel drive system—(a)Four −wheel
drive control” in this section.)
Vehicle skid control system

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Three
−way catalytic converter
The three −way catalytic converter is the
emission control devices installed in
the exhaust system.
Its purpose is to reduce pollutants in the
exhaust gas.
CAUTION
Keep people and combustible
materials away from the exhaust
pipe while the engine is running.
The exhaust gas is very hot.
Do not idle or park your vehicle
over anything that might burn
easily such as grass, leaves, pa-
per or rags.
NOTICE
A large amount of unburned gases
flowing into the three −way catalytic
converter may cause it to overheat
and create a fire hazard. To prevent
this and other damage, observe the
following precautions: Use only unleaded gasoline.
Do not drive with an extremely low
fuel level; running out of fuel could
cause the engine to misfire, creat-
ing an excessive load on the three −
way catalytic converter.
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 −start your
vehicle.
Do not turn off the ignition while
the vehicle is moving.
Keep your engine in good running
order. Malfunctions in the engine
electrical system, electric ignition
system or fuel system could cause
an extremely high three −way cata-
lytic converter temperature.
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 vehicle and its
three −way catalytic converter sys-
tem best.

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To ensure that the three −way cata-
lytic converter and the entire emis-
sion control system operate proper-
ly, your vehicle must receive the
periodic inspections required by the
Toyota Maintenance Schedule. For
scheduled maintenance information,
refer to the ”Scheduled Maintenance
Guide” or ”Owner ’s Manual Supple-
ment”.
Engine exhaust cautions
CAUTION
Avoid inhaling the engine ex-
haust. It contains carbon monox-
ide, which is a colorless and
odorless gas. It can cause un-
consciousness or even death.
Make sure the exhaust system
has no holes or loose connec-
tions. The system should be
checked from time to time. If you
hit something, or notice a
change in the sound of the ex-
haust, have the system checked
immediately.
Do not run the engine in a ga-
rage or enclosed area except for
the time needed to drive the ve-
hicle in or out. The exhaust
gases cannot escape, making
this a particularly dangerous situ-
ation.
Do not remain for a long time in
a parked vehicle with the engine
running. If it is unavoidable, how-
ever, do so only in an uncon-
fined area and adjust the heating
or cooling system to force out-
side air into the vehicle.

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As an example, if a vehicle is used for
repeated short trips, and consumes a nor-
mal amount of oil, the dipstick may not
show any drop in the oil level at all, even
after 1000 km (600 miles) or more. This
is because the oil is gradually becoming
diluted with fuel or moisture, making it
appear that the oil level has not changed.
The diluting ingredients evaporate out
when the vehicle is then driven at high
speeds, as on an expressway, making it
appear that oil is excessively consumed
after driving at high speeds.
IMPORTANCE OF ENGINE OIL LEVEL CHECK
One of the most important points in prop-
er vehicle maintenance is to keep the en-
gine oil at the optimum level so that oil
function will not be impaired. Therefore, it
is essential that the oil level be checked
regularly. Toyota recommends that the oil
level be checked every time you refuel
the vehicle.
NOTICE
Failure to check the oil level regularly
could lead to serious engine trouble
due to insufficient oil.
For detailed information on oil level check,
see ”Checking the engine oil level” in Sec-
tion 7
−2.
Your engine is fitted with iridium −tipped
spark plugs.
NOTICE
Use only iridium −tipped spark plugs
and do not adjust gaps for your en-
gine performance and smooth drivabil-
ity.
Iridium −tipped spark plugs

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184
Depressing the brake pedal on slippery
road surfaces such as on the manhole
cover, the steel plate under the construc-
tion, joints in the bridge, etc. on a rainy
day tends to activate the anti
−lock brake
system.
You may hear a click or motor 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 mal-
function.
When the anti −lock brake system is ac-
tivated, the following conditions may
occur. They do not indicate a malfunc-
tion of the system:
You may hear the anti −lock brake sys-
tem operating and feel the brake pedal
pulsating and the vibrations of the body
and steering wheel. You may also hear
the motor sound in the engine compart-
ment even after the vehicle is stopped.
At the end of the anti −lock brake sys-
tem activation, the brake pedal may
move a little forward.
CAUTION
Do not overestimate the anti −lock
brake system: Although the anti −lock
brake system assists in providing ve-
hicle control, it is still important to
drive with all due care and maintain
a moderate speed and safe distance
from the vehicle in front of you, be-
cause there are limits to the vehicle
stability and effectiveness of steering
wheel operation even with the anti −
lock brake system on.
If tires grip performance exceeds its
capability, or if hydroplaning occurs
during high speed driving in the rain,
the anti −lock brake system does not
provide vehicle control.
Anti −lock brake system is not de-
signed to shorten the stopping dis-
tance: Always drive at the moderate
speed and maintain a safe distance
from the vehicle in front of you.
Compared with vehicles without an
anti −lock brake system, your vehicle
may require a longer stopping dis-
tance in the following cases: Driving on rough, gravel or snow −
covered roads.
Driving with tire chains installed.
Driving over the steps such as the
joints on the road.
Driving on roads where the road
surface is pitted or has other differ-
ences in surface height.
Install all 4 tires of specified size at
appropriate pressure: The anti −lock
brake system detects vehicle speeds
using the speed sensors for respec-
tive wheels’ turning speeds. The use
of tires other than specified may fail
to detect the accurate turning speed,
resulting in a longer stopping dis-
tance.