1998 TOYOTA LAND CRUISER check engine light

B04203
B04204
IN-22
- INTRODUCTIONFOR ALL OF VEHICLES
22 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(d) Using Chassis Dynamometer:
Observe the following instructions and then measure with
the rear wheels.
(1) Remove the front propeller shaft.
(2) Put the center differential in LOCK position.
(3) If the vehicle is equipped with Vehicle Skid Control
(VSC) & Traction Control (TRAC) system, prohibit
the system from the activation (See step 2.).
(4) Ensure that the vehicle is securely fixed.
HINT:
Sudden shifting, braking, acceleration or deceleration is
not allowed.
Do not forget to change the Vehicle Skid Control (VSC) &
Traction Control (TRAC) system to operational condition
after the test. Check that the VSC warning indicator light
goes off when restarting the engine.
(e) On-V ehicle Wheel Balancing:
When doing on-vehicle wheel balancing on a full-time
4WD vehicle, to prevent each wheel from being rotated at
different speed in different directions (which could dam-
age the center differential), always be sure to observe the
following precautions.
(1) All of 4 wheels should be jacked up, being apart
from the ground completely.
(2) Put the center differential in LOCK position.
(3) If the vehicle is equipped with Vehicle Skid Control
(VSC) & Traction Control (TRAC) system, prohibit
the system from the activation (See step 2.).
(4) The parking brake lever should be fully released.
(5) None of the brakes should be applied.
(6) The wheels should be driven on the wheel balancer
with the engine running.
(7) Carry out the wheel balancing with the transmission
position in D position.
HINT:
When doing this balancing, pay attention to the other
wheels rotating at the same time.
Sudden acceleration, deceleration or braking is not al-
lowed.
Do not forget to change the Vehicle Skid Control (VSC) &
Traction Control (TRAC) system to operational condition
after the test. Check that the VSC warning indicator light
goes off when restarting the engine.

V07268
VIBRATION METHOD: When vibration seems to be the major cause.
CONNECTORS
WIRE HARNESS
PARTS AND SENSOR1
Slightly shake the connector vertically and horizontally.
Slightly shake the wire harness vertically and horizontally.
The connector joint, fulcrum of the vibration, and body
through portion are the major areas to be checked thorough-
ly.
Apply slight vibration with a finger to the part of the sensor
considered to be the problem cause and check that the mal-
function occurs.Shake Slightly
Swing Slightly
Vibrate Slightly
HINT:
Applying strong vibration to relays may result in open relays. IN-30
- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
30 Author
: Date
:
2004 LAND CRUISER (RM1071U)
3. SYMPTOM SIMULATION
The most difficult case in troubleshooting is when there are no problem symptoms occurring. In such cases,
a thorough customer problem analysis must be carried out, then simulate the same or similar conditions and
environment in which the problem occurred in the customer's vehicle. No matter how much experience a
technician has, or how skilled he may be, if he proceeds to troubleshoot without confirming the problem
symptoms he will tend to overlook something important in the repair operation and make a wrong guess
somewhere, which will only lead to a standstill. For example, for a problem which only occurs when the en-
gine is cold, or for a problem which occurs due to vibration caused by the road during driving, etc., the prob-
lem can never be determined so long as the symptoms are confirmed with the engine hot condition or the
vehicle at a standstill. Since vibration, heat or water penetration (moisture) is likely cause for problem which
is difficult to reproduce, the symptom simulation tests introduced here are effective measures in that the ex-
ternal causes are applied to the vehicle in a stopped condition.
Important Points in the Symptom Simulation Test:
In the symptom simulation test, the problem symptoms should of course be confirmed, but the problem area
or parts must also be found out. To do this, narrow down the possible problem circuits according to the symp-
toms before starting this test and connect a tester beforehand. After that, carry out the symptom simulation
test, judging whether the circuit being tested is defective or normal and also confirming the problem symp-
toms at the same time. Refer to the problem symptoms table for each system to narrow down the possible
causes of the symptom.

B02389
B02390
HEAT METHOD: When the problem seems to occur when the suspect area is heated. 2
NOTICE:3 WATER SPRINKLING METHOD:
(1)
(2)
4 OTHER: When a malfunction seems to occur when electrical load is excessive.When the malfunction seems to occur on a rainy day or in a
high-humidity condition. Heat the component that is the likely cause of the malfunction
with a hair dryer or similar object. Check to see if the malfunction
occurs.
Sprinkle water onto the vehicle and check to see if the malfunc-
tion occurs.
Turn on all electrical loads including the heater blower, head
lights, rear window defogger, etc. and check to see if the mal-
function occurs.ON HINT:
If a vehicle is subject to water leakage, the leaked water may
contaminate the ECU. When testing a vehicle with a water leak-
age problem, special caution must be taken.
Malfunc-
tion
Do not heat to more than 60 °C (140 °F). (Temperature
is limited not to damage the components.)
Do not apply heat directly to parts in the ECU. (1)
(2)
Never sprinkle water directly into the engine compart-
ment, but indirectly change the temperature and hu-
midity by applying water spray onto the radiator front
surface.
Never apply water directly onto the electronic compo-
nents. NOTICE:
- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMSIN-31
31 Author
: Date
:
2004 LAND CRUISER (RM1071U)

LU08Z-08
B04611
New O-Ring
B04612
LU-22
- LUBRICATIONOIL COOLER
1803 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSTALLATION
1. INSTALL OIL COOLER
(a) Clean the oil cooler contact surface on the cooler mount-
ing.
(b) Install a new O-ring to the oil cooler.
(c) Apply a light coat of engine oil on the threads and under
the head of the union bolt.
(d) Install the plate washer and union bolt.
Torque: 68.6 N´m (700 kgf´cm, 51 ft´lbf)
(e) Connect the 2 oil cooler hoses to the oil cooler.
2. INSTALL OIL FILTER (See page LU-2)
3. FILL WITH ENGINE COOLANT
4. START ENGINE AND CHECK FOR ENGINE OIL
LEAKS
5. CHECK ENGINE OIL LEVEL

MA02Q-01
MA-2
- MAINTENANCEINSIDE VEHICLE
50 Author
: Date
:
2004 LAND CRUISER (RM1071U)
INSIDE VEHICLE
GENERAL MAINTENANCE
These are the maintenance and inspection items which are considered to be owner's responsibility. They
can be done by the owner or be can have them done at a service shop. These items include those which
should be checked on a daily basis, those which, in most cases, do not require (special) tools and those
which are considered to be reasonable for the owner to do. Items and procedures for general maintenance
are as follows.
1. GENERAL NOTES

Maintenance items may very from country and country. Check the owner's manual supplement in
which the maintenance schedule is shown.

Every service items in the periodic maintenance schedule must be performed.

Periodic maintenance service must be performed according to whichever interval in the periodic main-
tenance schedule occurs first, the odometer reading (miles) or the time interval (months).

Maintenance service after the last period should be performed at the same time interval as before un-
less otherwise noted.

Failure to do even one item an cause the engine to run poorly and increase exhaust emissions.
2. LIGHTS
(a) Check that the headlights, stop lights, taillights, turn signal lights, and other lights are all working.
(b) Check the headlights aim.
3. WARNING LIGHTS AND BUZZERS
Check that all warning lights and buzzers function properly.
4. HORN
Check that it is working.
5. WINDSHIELD GLASS
Check for scratches, pits or abrasions.
6. WINDSHIELD WIPER AND WASHER
(a) Check operation of the wipers and washer.
(b) Check that the wipers do not streak.
7. WINDSHIELD DEFROSTER
Check that air comes out from the defroster outlet when operating the heater or air conditioner at defroster
mode.
8. REAR VIEW MIRROR
Check that it is mounted securely.
9. SUN VISORS
Check that they move freely and mounted securely.
10. STEELING WHEEL
Check that it has the specified freeplay. Be alert for changes in steering condition, such as hard steering,
excessive freeplay or strange noises.
11. SEATS
(a) Check that all front seat controls such as seat adjusters, seatback recliner, etc. operate smoothly.
(b) Check that all latches lock securely in any position.
(c) Check that the head restraints move up and down smoothly and that the locks hold securely in any
latch position.
(d) For folding-down rear seat backs, check that the latches look securely.
12. SEAT BELTS
(a) Check that the seat belt system such as buckles, retractors and anchors operate properly and smooth-
ly.
(b) Check that the belt webbing is not cut, frayed, worn or damaged.

FI2553
SST
B04902Fuel Pump Connector
Disconnect SF-2
- SFISFI SYSTEM
1701 Author
: Date
:
2004 LAND CRUISER (RM1071U)
(c) Do not a severe impact during removal or installation.
Handle all SFI parts carefully, especially the ECM.
(d) Be careful during the troubleshooting as there are numer-
ous transistor circuit, and even slight terminal contact can
cause further troubles.
(e) Do not open the ECM cover.
(f) When inspecting in rainy weather, take care to prevent
entry of water. Also, when washing the engine compart-
ment, prevent water from getting on the SFI parts and the
wiring connectors.
(g) Parts should be replaced as the original assembly.
(h) Care should be taken when pulling out and inserting the
wiring connectors.
(1) Release the lock and pull out the connector.
(2) Fully insert the connector and check that it is locked.
(i) Use SST for the inspection, the injector and the wiring
connector test.
SST 09842-30070
8. FUEL SYSTEM
(a) When disconnecting the high fuel pressure line, a large
amount of gasoline may be spilled:
(1) Disconnect the fuel pump connector.
(2) Start the engine. After the engine has stopped on
its own, turn the ignition switch OFF.
(3) Put a container under the connection.
(4) Slowly loosen the connection.
(5) Disconnect the connection.
(6) Plug the connection with a rubber plug.
(7) Reconnect the fuel pump connector.

R12473
SR0M0-06
F03748
- STEERINGSTEERING WHEEL
SR-9
2218 Author
: Date
:
2004 LAND CRUISER (RM1071U)
STEERING WHEEL
INSPECTION
1. CHECK STEERING WHEEL FREEPLAY
(a) Stop the vehicle and face the tires straight ahead.
(b) Rock the steering wheel gently up and down with a finger
lightly, check the steering wheel freeplay.
Maximum freeplay: 40 mm (1.58 in.)
2. CHECK STEERING EFFORT
(a) Center the steering wheel.
(b) Remove the steering wheel pad (See page SR-14).
(c) Start the engine and run it at idle.
(d) Measure the steering effort in both directions.
Steering effort (Reference):
4.9 N´m (50 kgf´cm, 43 in.´lbf)
HINT:
Be sure to consider the tire type, pressure and contact surface
before making your diagnosis.
(e) Torque the steering wheel set nut.
Torque: 50 N´m (510 kgf´cm, 37 ft´lbf)
(f) Install the steering wheel pad (See page SR-24).

F05176
SA165-06
Z16659
M1 M2
- SUSPENSION AND AXLEDIFFERENTIAL LOCKING SYSTEM
SA-163
2113 Author
: Date
:
2004 LAND CRUISER (RM1071U)
DIFFERENTIAL LOCKING SYSTEM
ON-VEHICLE INSPECTION
1. INSPECT DIFFERENTIAL LOCK SYSTEM
(a) Inspect the indicator light.
Check that the indicator light lights up for approx. 1 se-
cond when the ignition switch is turned ON.
(b) Inspect the differential lock operation.
(1) Jack up the vehicle then start the engine.
(2) Shift the transfer shift lever to L position.
(3) When the diff. lock control switch is set to the RR
position, the indicator light is turned on.
Differential lock is applied to the rear wheel at this
time.
HINT:
If the gears of the differential lock system are not meshed, the
indicator light remains blinking, so rotate the tires to mesh the
gear.
(4) When the diff. lock control switch is at the OFF posi-
tion, the indicator light goes off.
Differential lock is released for the rear wheel at this
time.
(5) Check the voltage between the terminals of the rear
diff. lock control ECU when switching the diff. lock
control switch with the speedometer, registering
approx. 8 km/h (5 mph) or more.
Swith positionTerminalSpecified value
ONM1 - M20.5 V or less
(No change)
(6) Return the diff. lock control switch to OFF.
(7) Stop the engine and lower the vehicle.
2. INSPECT DIFF. LOCK SYSTEM CIRCUIT
(a) Inspect the battery positive voltage.
Battery positive voltage: 10 - 14 V