1998 TOYOTA LAND CRUISER service indicator

AC1HM-04
N13795
Quick Disconnect
Adapter
Charging
Service ValveHose
N13794
Vacuum Pump
Vacuum Pump Adapter
N13791
Low Pressure
Service Valve
Vacuum Pump Adapter High Pressure
Service ValveManifold
Gauge
Set
AC-10
- AIR CONDITIONINGAIR CONDITIONING SYSTEM
2735 Author
: Date
:
2004 LAND CRUISER (RM1071U)
EVACUATING
1. CONNECT QUICK DISCONNECT ADAPTER TO
CHARGING HOSES
2. REMOVE CAPS FROM SERVICE VALVES ON RE-
FRIGERANT LINES
3. SET ON MANIFOLD GAUGE SET
(a) Close both the hand valves of the manifold gauge set.
(b) Connect the quick disconnect adapters to the service
valves.
4. EVACUATE AIR FROM REFRIGERATION SYSTEM
(a) Connect the vacuum pump adapter to the vacuum pump.
(b) Connect the center hose of the manifold gauge set to the
vacuum pump adapter.
(c) Open both the high and low hand valves and run the vacu-
um pump.
(d) After 10 minutes or later, check that the low pressure
gauge indicates 750 mmHg (30 in. Hg) minimum.
HINT:
If the reading is 750 mmHg (30 in. Hg) close both hand valves
of the manifold gauge set and stop the vacuum pump.
Check the system for leaks and repair if necessary.
(e) Close both the high and low hand valves and stop the vac-
uum pump.
(f) Leave the system in this condition for at least 5 minutes
and check that there is no gauge indicator.

DIB69-01
I24672
Hand-held tester
DLC3
A04550
DLC3
10 11 12 13 14 15 16 12345678
9
- DIAGNOSTICSCRUISE CONTROL SYSTEM
DI-981
1174 Author
: Date
:
2004 LAND CRUISER (RM1071U)
PRE-CHECK
1. DIAGNOSIS SYSTEM
(a) Description
ECM controls the function of cruise control on this vehicle.
Data of the cruise control or DTC can be read from DLC3
of the vehicle. When a trouble occurs on cruise control,
Check CRUISE MAIN indicator does not light up but DTC
inspection is performed.
Therefore when there seems to be a trouble on cruise
control, use hand-held tester or SST to check and trou-
bleshoot it.
(b) Check the DLC3.
The vehicle's ECM uses ISO 9141-2 for communication.
The terminal arrangement of DLC3 complies with SAE
J1962 and matches the ISO 9141-2 format.
Terminal No.Connection/Specified ConditionCondition
4Chassis Ground e Body Ground/1 or lessAlways
13TC e Body Ground/9 - 14 VAlways
HINT:
If your display shows ºUNABLE TO CONNECT TO VEHICLEº
when you have connected the cable of the hand-held tester to
DLC3, turned the ignition switch ON and operated the hand-
held tester, there is a problem on the vehicle side or tool side.

If communication is normal when the tool is connected to
another vehicle, inspect DLC3 on the original vehicle.

If communication is still not possible when the tool is con-
nected to another vehicle, the problem is probably in the
tool itself, so consult the Service Department listed in the
tool's instruction manual.

2004 LAND CRUISER (EWD548U)
11 9
2. Control System
*SFI system
The SFI system monitors the engine condition through the signals input from each sensors to the engine control module.
The control signal is sent to the engine control module TERMINALS #1, #2, #3, #4, #5, #6, #7, #8 to operate the injector
(Fuel injection). The SFI system controls the fuel injection by the engine control module in response to the driving
conditions.
*ESA system
The ESA system monitors the engine condition through the signals input from each sensors to the engine control module.
The best ignition timing is decided according to this data and the data memorized in the engine control module. The
control signal is output to TERMINALS IGT1, IGT2, IGT3, IGT4, IGT5, IGT6, IGT7, IGT8, and these signals control the
igniter to provide the best ignition timing.
*Heated oxygen sensor heater control system
The heated oxygen sensor heater control system turns the heater on when the intake air volume is low (Temp. of exhaust
emission is low), and warms up the heated oxygen sensors to improve their detection performance. The engine control
module evaluates the signals from each sensors, and outputs current to TERMINALS HT1A, HT1B, HT2A, HT2B to
control the heater.
*Fuel pump control system
The engine control module supplies current to TERMINAL FPR, and controls the operation speed of the fuel pump by the
F/PUMP relay.
*ACIS
The ACIS includes a valve in the bulkhead separating the surge tank into two parts. This valve is opened and closed in
accordance with the driving conditions to control the intake manifold length in two stages, for increased engine output in all
ranges from low to high speeds.
*ETCS-i
The ETCS-i controls the engine output at its optimal level in accordance with the opening of the accelerator pedal, under
all driving conditions.
3. Diagnosis System
When there is a malfunction in the engine control module signal system, the malfunctioning system is recorded in the
memory. The malfunctioning system can be found by reading the code displayed on the malfunction indicator lamp.
4. Fail-Safe System
When a malfunction has occurred in any system, there is a possibility of causing engine trouble due to continued control
based on that system. In that case, the fail-safe system either controls the system using the data (Standard values)
recorded in the engine control module memory, or else stops the engine.
E2 Engine Coolant Temp. Sensor
1-2 : Approx. 15.0 kW (-20°C, -4°F)
: Approx. 2.45 kW (20°C, 68°F)
: Approx. 0.32 kW (80°C, 176°F)
E5 (A), E7 (C), E8 (D), E9 (E) Engine Control Module
BATT-E1 : Always 9.0-14.0 volts
+BM-E1 : Always 9.0-14.0 volts
IGSW-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
+B, +B2-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
VC-E2 : 4.5-5.5 volts with ignition SW on
VTA2-E2 : 2.0-2.9 volts with ignition SW on and accelerator pedal released
: 4.6-5.1 volts with ignition SW on and accelerator pedal depressed
VTA1-E2 : 0.4-1.0 volts with ignition SW on and accelerator pedal released
: 3.2-4.8 volts with ignition SW on and accelerator pedal depressed
THA-E2 : 0.5-3.4 volts with idling, intake air temp. 20°C (68°F)
THW-E2 : 0.2-1.0 volts with idling, engine coolant temp. 80°C (176°F)
W-E1 : 9.0-14.0 volts with idling
: Below 3.0 volts with ignition SW on
Service Hints

2004 LAND CRUISER (EWD548U)
225
The cruise control system is a constant vehicle speed controller which controls the opening angle of the engine throttle valve
by the SW, and allows driving at a constant speed without depressing the accelerator pedal.
Set Operation
When the ON-OFF SW is turned on, the systems starts preparations for cruise control and turns on the indicator light in the
combination meter.
Set Speed Control
When the - SET SW is operated with the ON-OFF SW turned on during driving, the speed is controlled at a constant speed.
Coast Control
When the - SET SW is kept turned on during cruise control driving, the engine control module controls the throttle valve to
decelerate the vehicle speed.
Every time the - SET SW is turned on instantaneously, the vehicle speed is decelerated approx. 1.5 km/h.
Accel Control
When the + RES SW is kept turned on during cruise control driving, the engine control module controls the throttle valve to
accelerate the vehicle speed.
Every time the + RES SW is turned on instantaneously, the vehicle speed is accelerated approx. 1.5 km/h.
Resume Control
If the vehicle speed is within the low speed limit (Approx. 40 km/h, 25 mph) when canceling the cruise control, operation of
the + RES SW accelerates the vehicle speed and resumes the level before canceling the cruise control.
Manual Cancel Mechanism
If any of the following signals are input during cruise control driving, the cruise control is canceled.
*The stop light SW is on
*The CANCEL SW is turned on
*The ON-OFF SW is turned off
Auto Cancel Function
If any of the following conditions are detected, the cruise control is canceled:
*Failure in the stop light SW wiring
*Abnormality in the vehicle speed signal
*Malfunction in the electronically controlled throttle parts
Overdrive Function
The overdrive may be canceled if the vehicle travels on a upward slope during cruise control driving. After the overdrive is
canceled, if the vehicle speed exceeds the overdrive return speed (Set speed ( 2 km/h, 1.2 mph) ) and it is determined that
the slope has finished, and the vehicle returns to overdrive mode again.
E7 (C), E8 (D), E9 (E) Engine Control Module
BATT-E1 : Always 9.0-14.0 volts
IGSW-E1 : 9.0-14.0 volts with ignition SW at ON or ST position
STP-E1 : 7.5-14 volts with brake pedal is depressed
: Below 1.5 volts with brake pedal is released
C18 Combination SW
5-4 : Approx. 1540 W with CANCEL SW on
: Approx. 240 W with + RES SW on
: Approx. 630 W with - SET SW on
: Parts Location
CodeSee PageCodeSee PageCodeSee Page
A1470D770G470
A4570E5A70J1471
C12A70E6B70P169
C15D70E7C70S571
C1870E8D70T1669
D168E9E70V269
System Outline
Service Hints

Illustration:
what to do and where
21. CHECK PISTON STROKE OF OVERDRIVE BRAKE
(a)
Task heading : what to do
SST 09350-30020 (09350-06120)
Set part No. Component part No.
Detailed text : how to do task
(b)
Piston stroke: 1.40
1.70 mm (0.0551
0.0669 in.)
Specification
Place SST and a dial indicator onto the overdrive brake pis-
ton as shown in the illustration.
Measure the stroke applying and releasing the compressed
air (392
785 kPa, 4
8 kgf/cm
2 or 57
114 psi) as shown
in the illustration. IN-2
- INTRODUCTIONHOW TO USE THIS MANUAL
2 Author
: Date
:
2004 LAND CRUISER (RM1071U)
The procedures are presented in a step-by-step format:

The illustration shows what to do and where to do it.

The task heading tells what to do.

The detailed text tells how to perform the task and gives other information such as specifications
and warnings.
Example:
This format provides the experienced technician with a FAST TRACK to the information needed. The upper
case task heading can be read at a glance when necessary, and the text below it provides detailed informa-
tion. Important specifications and warnings always stand out in bold type.
6. REFERENCES
References have been kept to a minimum. However, when they are required you are given the page to refer
to.
7. SPECIFICATIONS
Specifications are presented in bold type throughout the text where needed. You never have to leave the
procedure to look up your specifications. They are also found in Service Specifications section for quick ref-
erence.
8. CAUTIONS, NOTICES, HINTS:

CAUTIONS are presented in bold type, and indicate there is a possibility of injury to you or other
people.

NOTICES are also presented in bold type, and indicate the possibility of damage to the components
being repaired.

HINTS are separated from the text but do not appear in bold. They provide additional information to
help you perform the repair efficiently.
9. SI UNIT
The UNITS given in this manual are primarily expressed according to the SI UNIT (International System of
Unit), and alternately expressed in the metric system and in the English System.
Example:
Torque: 30 N´m (310 kgf´cm, 22 ft´lbf)

MA02R-05
MA-4
- MAINTENANCEUNDER HOOD
52 Author
: Date
:
2004 LAND CRUISER (RM1071U)
UNDER HOOD
GENERAL MAINTENANCE
1. GENERAL NOTICE

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

Every service item 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 services after the last period should be performed at the same interval as before unless
otherwise noted.

Failure to do even one item can cause the engine to run poorly and increase exhaust emissions.
2. WINDSHIELD WASHER FLUID
Check that there is sufficient fluid in the tank.
3. ENGINE COOLANT LEVEL
Check that the coolant level is between the LEVEL lines on the see-through reservoir at normal tem-
perature (20°C (68°F)).
4. RADIATOR AND HOSES
(a) Check that the front of the radiator is clean and not blocked with leaves, dirt or bugs.
(See page CO-14)
(b) Check the hoses for cracks, kinks, rot or loose connections.
5. BATTERY ELECTROLYTE LEVEL

Check the indicator.

When the indicator color is blue, the condition is satisfactory. A red color indicates that distilled water
must be added, and white indicates that charging is necessary.
6. BRAKE FLUID LEVELS
Check that the brake fluid level is near the upper level line on the see-through reservoir.
(See page BR-4)
7. ENGINE DRIVE BELTS
Check drive belt for fraying, cracks, wear or oiliness.
8. ENGINE OIL LEVEL
Check the level on the dipstick with the engine turned off.
9. POWER STEERING FLUID LEVEL

Check the level on the dipstick.

The level should be in the ºHOTº or ºCOLDº range depending on the fluid temperature.
10. AUTOMATIC TRANSMISSION FLUID LEVEL
Visually check the overflow plug and oil pan for fluid leaks or traces of fluid.

- SERVICE SPECIFICATIONSSUSPENSION AND AXLE
SS-39
179 Author
: Date
:
2004 LAND CRUISER (RM1071U) REAR
Part tightenedN´mkgf´cmft´lbf
Hub bolt1311,34097
Axle housing x Brake caliper1031,05076
Axle housing x Backing plate1231,25091
Brake line1515011
Shock Absorber x Axle housing981,00072
Stabilizer bar bracket x Body1818513
Follow spring x Body2829021
Piston rod x Body6970451
Lateral control rod x Body1501,530111
Upper control arm x Body1501,530111
Upper control arm x Axle housing1501,530111
Lower control arm x Body1501,530111
Lower control arm x Axle housing1501,530111
Heat insulator x Body1818513
Lateral control rod x Axle housing1491,52011 0
Stabilizer bar x Stabilizer bar bracket2627019
Stabilizer bar link x Stabilizer bar bracket1515011
Stabilizer bar bracket x Axle housing1818513
Propeller shaft x Companion flange1061,08078
Companion flange x Drive pinion
w/ Diff. Lock
w/ LSDSee page SA-107
See page SA-127
See page SA-150
Differential carrier x Axle housing7274053
Filler plug4950036
Drain plug4950036
Differential case x Ring gear1371,400101
Differential carrier
Bearing cap x Differential carrier8385061
Adjusting nut lock x Bearing cap1313010
RH differential case x LH differential case4748035
Differential carrier (w/ Diff. Lock)
No. 1 actuator protector x Actuator1515011
No. 2 actuator protector x Axle housing3636727
Bearing cap x Differential carrier11 31,15083
Cover x Differential carrier1818513
Actuator x Differential carrier2424018
Actuator x Shift fork2020015
Indicator switch4041030
Differential cover x Differential case5859043
Differential carrier (w/ LSD)
Bearing cap x Differential carrier8385061
Adjusting nut lock x Bearing cap1313010
RH differential case x LH differential case4748035

SS0ON-04
- SERVICE SPECIFICATIONSTRANSFER
SS-27
167 Author
: Date
:
2004 LAND CRUISER (RM1071U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Crossmember x Frame5051037
Crossmember x Engine rear mounting7475054
Transfer x Transmission6970051
Filler and drain plug3738027
Oil pump plate x Rear extension housing4.95043 in.´lbf
Oil pump cover x Rear extension housing4.95043 in.´lbf
Lever lock pin121209
Oil strainer x Rear case4.95043 in.´lbf
Oil receiver x Front case121209
Case cover x Rear case3738027
Rear extension housing x Rear case3738027
Front extension housing x Front case3738027
Transfer indicator switch (Center diff. lock)3738027
Transfer indicator switch (Low switch)3738027
Transfer indicator switch (Neutral switch)3738027
Screw plug x Front case1919014
Screw plug x Rear extension housing2930022
Motor actuator x Front case1818513
Differential front case x Differential rear caseSee page TR-31
Front case x Rear case3738027
Crossmember x Transfer case protector2829021
Speed sensor driven gear1111 58
Transfer shift lever rod assembly x Shift outer lever1414010
Transfer control shift lever retainer x Transmission1919014
Transfer x Front propeller shaft8082059
Front propeller shaft x Front differential8082059
Transfer x Rear propeller shaft1061,08078
Rear propeller shaft x Rear differential1061,08078
Rear extension housing x Retainer3940029