1998 TOYOTA LAND CRUISER 4WD

DI-454
- DIAGNOSTICSAUTOMATIC TRANSMISSION
647 Author
: Date
:
2004 LAND CRUISER (RM1071U)
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The Following items are common to all conditions below: Condition (A), (B), (C) and (D)
The monitor will run whenever the follow-
ing DTCs are not present.See page DI-361
Turbine speed sensor (NT) circuit
Output speed sensor (NO) circuit
Shift solenoid ºAº (S1) circuit
Shift solenoid ºBº (S2) circuit
Shift solenoid ºEº (SR) circuitThere is no malfunction in the circuits shown on the leftPressure control solenoid ºAº (SL1) circuitThere is no malfunction in the circuits shown on the left.
Pressure control solenoid ºBº (SL2) circuit
ECT (Engine coolant temperature) sensor
circuit
KCS sensor circuit
ETCS (Electric throttle control system)Not system down
Transmission shift positionºDº
ECT40°C (104°F) or more-
Spark advance from Max. retard timing by
KCS control0° CA or more-
EngineRunning
Transfer rangeºHIGHº*1
Transfer range ºHIGHº *1 (This condition is applied only 4WD)
*1 Following conditions met
Vehicle speed sensor ºAº circuitTh i lf ti i th i it h th l ft Output shaft speed sensor circuitThere is no malfunction in the circuits shown on the left.
Transfer output speed143 rpm or more-
NO/NOtf (Transfer input speed/Transfer
output speed)0.9 or moreLess than 1.1
Condition (A)
ECM selected gear2nd
Vehicle speed2 km/h (1 mph) or more-
Output speed2nd " 1st down shift point or more-
Throttle valve opening angle6.5% or more at 2,000 rpm
(conditions vary with engine speed)-
Condition (B)
ECM selected gear4th
Vehicle speed2 km/h (1 mph) or more-
Throttle valve opening angle6.5% or more at 2,000 rpm
(conditions vary with engine speed)-
Condition (C)
Current ECM selected gear5th
Last ECM selected gear4th
Vehicle speed
(During transition from 4th to 5th gear)-Less than 100 km/h (62 mph)
Condition (D)

- DIAGNOSTICSAUTOMATIC TRANSMISSION
DI-477
670 Author
: Date
:
2004 LAND CRUISER (RM1071U)
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
[The following items are common to all conditions below: OFF malfunction (A) and (B)]
The monitor will run whenever the follow-
ing DTCs are not present.See page DI-361
Turbine speed sensor (NT) circuit
Output speed sensor (NO) circuit
Transmission Fluid Temperature Sensor
ºAº circuit
Shift solenoid ºAº (S1) circuit
Shift solenoid ºBº (S2) circuit
Shift solenoid ºEº (SR) circuitThere is no malfunction in the circuits shown on the left.
Pressure control solenoid ºAº (SL1) circuit
There is no malfunction in the circuits shown on the left.
Pressure control solenoid ºBº (SL2) circuit
Pressure control solenoid ºDº (SLT) circuit
ECT (Engine coolant temperature) sensor
circuit
KCS sensor circuit
ETCS (Electric throttle control system)Not system down
Transmission shift positionºDº
ECT40°C (104°F) or more-
Spark advance from Max. retard timing by
KCS control0° CA or more-
EngineRunning
Transfer rangeºHIGHº*1
ATF temperature10°C or more-
Transfer range ºHIGHº *1 (This condition is applied only 4WD)
*1 Following conditions met
Vehicle speed sensor ºAº circuitTh i lf ti i th i it h th l ft Output shaft speed sensor circuitThere is no malfunction in the circuits shown on the left.
Transfer output speed143 rpm or more-
NO/NOtf (Transfer input speed/Transfer
output speed)0.9 or moreLess than 1.1
TYPICAL MALFUNCTION THRESHOLDS
Detection criteriaThreshold
Summation of C1 clutch heat generations
= R (Turbine speed - Output speed x Temporary ratio)Specified value

DI-488
- DIAGNOSTICSAUTOMATIC TRANSMISSION
681 Author
: Date
:
2004 LAND CRUISER (RM1071U)
TYPICAL ENABLING CONDITIONS
ItSpecificationItemMinimumMaximum
The following items are common to all conditions below: OFF malfunction and ON malfunction
The monitor will run whenever the follow-
ing DTCs are not present.See page DI-361
Turbine speed sensor (NT) circuit
Output speed sensor (NO) circuit
Shift solenoid ºAº (S1) circuit
Shift solenoid ºBº (S2) circuitThere is no malfunction in the circuits shown on the leftShift solenoid ºEº (SR) circuitThere is no malfunction in the circuits shown on the left.
Torque converter clutch pressure control
solenoid circuit
KCS sensor circuit
ETCS (Electric throttle control system)Not system down
Transmission shift positionºDº
ECT (Engine coolant temperature)40°C (104°F) or more-
Spark advance from Max. retard timing by
KCS control0° CA or more-
EngineRunning
ECM selected gear4th or 5th
Vehicle speed25 km/h or more-
Shift solenoid ºAº (S1) circuit
Shift solenoid ºBº (S2) circuitTh i lf ti i th i it h th l ftPressure control solenoid ºBº (SL2) circuitThere is no malfunction in the circuits shown on the left.
1-2 Shift valve
Transfer neutral position switchOFF
Transfer rangeºHIGHº*1
Transfer range ºHIGHº *1 (This condition is applied only 4WD)
*1 Following conditions met
Vehicle speed sensor ºAº circuitTh i lf ti i th i it h th l ft Output shaft speed sensor circuitThere is no malfunction in the sensor circuits shown on the left.
Transfer output speed143 rpm or more-
NO/NOtf (Transfer input speed/Transfer
output speed)0.9 or moreLess than 1.1
OFF malfunction
ECM lock-up commandON
(SLU pressure: 513kpa or more)
Vehicle speed-Less than 100 km/h (62 mph)
ON malfunction
ECM lock-up commandOFF
(SLU pressure: less than 4kpa)
Throttle valve opening angle9% or more-
Vehicle speed-Less than 60 km/h (38 mph)

2004 LAND CRUISER (EWD548U)
M OVERALL ELECTRICAL WIRING DIAGRAM
1
234
14 LAND CRUISER
2C 1
2A 1B120A
J/B NO. 2
120A MAIN
140A ALT
II F1 5(
A)
, F16(
B)
, F17(
C)
B- G
I18
Bat tery
IG1 NO. 3 Relay1 2
3 5 3Q 39 3C1SB
7. 5A AM1
2E 39
B- G
1C
B- G
120A
J/B NO. 3 W- R L- B 7. 5A MET
3Q 73E 4
B- G
2
7ACC
IG1
IG2
ST2 AM1 4
6 AM2
91B
11C
15A AM210 2A 41 2E
W- RB- R B- RABS & BA &
TRAC & VSC
ECU< 12- 9>
EB1 5
ECII Set Bolt of
Cowl Side J/B RH 13 I N2 5IN2
1EB1 6 EB1 2 EB1 12 EB1
M EB1 11 8 EB1
1 2
1 2
1 2 2IX1 14 I N23 6 9
10 4 1 5 2
4 10 A
14 B
21 53
3E 6 W- B
L- BW- B W- B
G- Y
G
G- R
G- B G- Y
G
G- R
G- B G
G- R
W- B
W- B Y- G Y- G
P- B Y- G
SB SB SBW- B Engine Contr ol Module
<5- 12>
R- L R- L R- L ABS & BA & TRAC & VSC
ECU< 12- 9>P- B
3EB1
B- L B- L
W- B B- L
W- B
3Q 563Q 28 3B36D38
6D 39D 4D 6
D 5 Ce nt e r
Diff. LockA A
C12(
A)
, C13(
B)
J 4B- R
6Ib2
R- L
6D 32
6D 313Q 20
543B
5IX1SB B- L C 5
C 2
3 I b2 2 Ib2 3 I b1 2 Ib1
B B- R B- R
B B
B- R
Ib2 10 Ib21
6D 5 6D 46B 2 6B 3
G- Y
G
G- R
G- B
25 2627 2
113
B
B- R
(
*1)
(
*2)
(
*1)
(
*2)
C28
A45
DEFC
2WD 4WD
B- R
B- R
1 2
5 3 19 2D
10A GAUGE1 R- LIG1 NO. 2 Relay
Se t Bol t o f
Co wl S i de J/ B RH IF Se t Bol t o f
Co wl S i de J/ B L H17
4D5
4C
R- L
(
*1)
R- L(
*1)
R- L(
*2) R- L* 1 : w/ Nav igation Sy st em
* 2 : w/o Navigation System
2E 37 2Q77
10A GAUGE2
3E 3 53E
20A DIFF L- B R- L
Rear Bank of Right
Cylinder Head
SB
Power SourceCenter Differential Lock
DEFC
2WD 4 WD
REL2 M2 M1 REL1 GND2WD 4WD IG
B- L
Engine Contr ol Module
<5- 12>
15 6C
Center Diff.
Lock Control
Motor Center Diff. Lock Control Relay
Combination MeterDet ection SW
(
Center Diff. Lock)
Det ection SW
(
Trans fer L Pos ition) Detection SW
(
Transf er Neutr al Position)
Ignition SW
A/C Cont rol Assembly
J unc tion
Connec tor
Center Cluster
I ntegr ation Panel
Fusible Link Block
W- B

2004 LAND CRUISER (EWD548U)
248Center Differential Lock
REL2 M2 M1 REL1 GND2WD 4WD IG
10 4 1 5 2
G- B
6B 3
6D 4
G- B
EB1 12
M EB1 2 EB16 EB11 IN2 5IN213
G- R
G
Ib2 10 Ib21
G- Y
6B 2
6D 5
G- Y
21 53
II 3E 6
G- B
G- R
G
G- Y W- B
W- BG- R G- R
G G
C 2 963
B
B- R
L- B
Ib2 3Ib22
B
B- R
Ib1 3Ib1220A
DIFF From Power Source System (
See Page 94)
3E 5
C28
C 5A45
26 25 13 1
27 2
B- R
B
B- R
B
BBB- R
B- R R- L
W- B
(
*1)
(
*2)(
*2)
(
*1)
(
*1) (
*1) (
*2) (
*2)
(
*1)
4WD 4WD 2WD2WD
DEFC DEFC
4
Center Diff. Lock Contr ol Motor
Center Diff. Lock Control RelayA/C Control Assembly
Center Cluster Integration Panel
4C 3 4A 10 4C 12
4F 34E64E4 MPX+ MPX-
19 39
B
P- B B
B
P- B
411
MPD1 MPD2
Gateway ECU G 4 R- L
R- L
B
B (
*2)
(
*1)
(
*1)
(
*1)(
*1)
(
*1)
* 2 : w/o Navigation System * 1 : w/ Navigation System

F02201N09214F05476
E1
DLC1
CG Ts
DLC3
Ts
B04696
Center Differential Lock
Indicator Light
Center Differential
Switch
Transfer Select
Lever
IN-18
- INTRODUCTIONFOR ALL OF VEHICLES
18 Author
: Date
:
2004 LAND CRUISER (RM1071U)
2. FOR VEHICLE EQUIPPED WITH VEHICLE SKID CON-
TROL (VSC) SYSTEM
(a) Precaution when using drum tester:
When using a drum tester, make sure that the ignition
switch is OFF, start the engine with the diagnosis connec-
tor short-circuited between Ts and E
1 (CG) and take a
measurement.
NOTICE:
Check that VSC warning light is blinking.
Ensure that the vehicle does not move using wires.
After the measurement, disconnect the short circuit
and check that the VSC warning light is turned off
when restarting the engine.
(b) Precaution during VSC operation:
(1) Since VSC may be affected by the removal/installa-
tion of the VSC-related parts, do not remove/install
those parts unless absolutely necessary.
(2) When operating on VSC, follow the instructions in
BR section in this manual to surely make prepara-
tions or check after operations.
3. WHEN SERVICING FULL-TIME 4WD VEHICLES
The Full-time 4WD LAND CRUISER is equipped with the me-
chanical lock type center differential system.
During tests using a brake tester or chassis dynamometer, such
as braking force tests or speedometer tests, if only the front or
rear wheels are to be rotated, it is necessary to set the position
of the center differential to FREE or LOCK depending on the
type of the test being performed.

B04698
B04696
Center Differential Lock
Indicator Light
Center Differential
Switch
Transfer Select
Lever
F08296
IN-20
- INTRODUCTIONFOR ALL OF VEHICLES
20 Author
: Date
:
2004 LAND CRUISER (RM1071U)
Transfer gear ºHº e ºLº gear shifting procedure:
When shifting, always put the shift lever of the transmis-
sion in N position. In other positions, the gears of the
transfer clash, and switching cannot be performed.
4. WHEN TESTING BRAKES, SPEEDOMETER, ETC.
(a) When carrying out any kind of servicing or testing on a
Full-time 4WD in which the front or rear wheels are to be
rotated (braking test, speedometer test), be sure to ob-
serve the precautions given below.
Incorrect preparations or test procedures may cause dan-
ger as well as unsuccessful test results.
Before starting any such servicing or test, be sure to
check the following items:
Center differential mode position (FREE or LOCK)
Vehicle skid control (VSC) system (with or without):
If the vehicle is equipped with the system, the slip
indicator light, the VSC/TRAC indicator light and the
VSC OFF indicator light come on with the ignition
key turned to ºONº. They will go off after about a few
seconds.
Whether wheels should be touching ground or
jacked up
Transmission gear position (N position)
Transfer gear position (H or L position)
Maximum testing vehicle speed
Maximum testing time
HINT:
w/o Vehicle skid control (VSC) system:
When the transfer select lever is put in ºLº position, the center
differential is put in LOCK condition regardless of the position
of the center differential lock switch.

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.