1998 TOYOTA LAND CRUISER manual transmission

DI-400
- DIAGNOSTICSAUTOMATIC TRANSMISSION
593 Author
: Date
:
2004 LAND CRUISER (RM1071U)
Chapter 3: Off-Vehicle Repair
(
: A750E, A750F AUTOMATIC TRANSMISSION Repair Manual Pub. No. RM999U)
SymptomSuspect AreaSee page
Vehicle does not move in any forward position and reverse posi-
tions1. Rear planetary gear unit
2. Torque converter clutch

AT-34
Vehicle does not move in R position
1. Brake No. 4 (B4)
2. Clutch No. 3 (C
3)
3. One-way clutch No.4 (F
1)






No up-shift (1st " 2nd)
1. Brake No. 3 (B3)
2. One-way clutch No.1 (F
1)
3. One-way clutch No. 2 (F
2)






No up-shift (2nd " 3rd)Clutch No. 3 (C3)

No up-shift (3rd " 4th)Clutch No. 2 (C2)

No up-shift (4th " 5th)1. Brake No. 1 (B1)
2. Clutch No. 1 (C
1)




No lock-up or No lock-up offTorque converter clutchAT-34
Harsh engagement (N " D)1. Clutch No. 1 (C1)
2. One-way clutch No.3 (F
3)




Harsh engagement (N " R)
1. Clutch No. 3 (C3)
2. Brake No. 4 (B
4)
3. One-way clutch No.1 (F
1)






Harsh engagement (1 " 2)
1. Brake No. 3 (B3)
2. One-way clutch No.1 (F
1)
3. One-way clutch No. 2 (F
2)






Harsh engagement (2 " 3)Clutch No. 3 (C3)

Harsh engagement (3 " 4)Clutch No. 2 (C2)

Harsh engagement (4 " 5th)1. Brake No. 1 (B1)
2. Clutch No. 1 (C
1)




Harsh engagement (Lock-up)Torque converter clutchAT-34
Slip or shudder (Forward and reverse: After warm-up)
1. One-way clutch No.1 (F1)
2. Clutch No. 3 (C
3)
3. Torque converter clutch clutch






Slip or shudder (Particular position: Just after engine starts)Torque converter clutchAT-34
Slip or shudder (R position)
1. Brake No. 4 (B4)
2. One-way clutch No.1 (F
1)
3. Clutch No. 3 (C
3)






Slip or shudder (1st)1. Clutch No. 1 (C1)
2. One-way clutch No.3 (F
3)




Slip or shudder (2nd)
1. Clutch No. 1 (C1)
2. Brake No. 3 (B
3)
3. One-way clutch No.1 (F
1)
4. One-way clutch No.2 (F
2)








Slip or shudder (3rd)
1. Clutch No. 1 (C1)
2. Clutch No. 3 (C
3)
3. One-way clutch No.1 (F
1)






Slip or shudder (4th)1. Clutch No. 1 (C1)
2. Clutch No. 2 (C
2)




Slip or shudder (5th)
1. Clutch No. 2 (C2)
2. Clutch No. 3 (C
3)
3. Brake No. 1 (B
1)






No engine braking (1st - 4th: D position)Clutch No. 1 (C1)

A04550
12 345678
11 12 13 14 15 16 910
DLC3
- DIAGNOSTICSENGINE
DI-5
198 Author
: Date
:
(b) Check the DLC3.
The vehicle's ECM uses the ISO 9141-2 for communica-
tion protocol. The terminal arrangement of the DLC3 com-
plies with SAE J1962 and matches the ISO 9141-2 for-
mat.
SymbolNameResult
(Terminal No.)(Reference terminal)(Condition)
SILBus º+º linePulse generation
(7)(5 - Signal ground)(During transmission)
CGChassis ground1 W or less
(4)(Body ground)(Always)
SGSignal ground1 W or less
(5)(Body ground)(Always)
BATBattery positive9 to 14 V
(16)(Body ground)(Always)
HINT:
Connect the cable of the hand-held tester to the DLC3, turn the
ignition switch ON and attempt to use the hand-held tester. If
the screen displays UNABLE TO CONNECT TO VEHICLE, a
problem exists in the vehicle side or the tester side.

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

If the communication is still impossible when the tool is
connected to another vehicle, the problem is probably in
the tool itself, so consult the Service Department listed in
the tool's instruction manual.
(c) Inspect the battery voltage.
Battery Voltage: 11 to 14 V
If voltage is below 11 V, recharge the battery before proceeding.
(d) Check the MIL.
(1) The MIL comes on when the ignition switch is turned
ON and the engine is not running.
HINT:
If the MIL is not illuminated, troubleshoot the MIL circuit (See
page DI-355).
(2) When the engine is started, the MIL should not illu-
minate. If the lamp remains on, the diagnosis sys-
tem has detected a malfunction or abnormality in
the system.

A07061DLC3
Hand-Held Tester
BR3904
0.13 sec.0.13 sec.
ON
OFF
- DIAGNOSTICSENGINE
DI-7
200 Author
: Date
:

Check the pending fault code using the Continuous
Test Results function (Mode 7 for SAE J1979) on the
OBD II scan tool.
(b) Clearing the DTCs using the OBD II scan tool or the
hand-held tester.
(1) Connect the OBD II scan tool or the hand-held tes-
ter to the DLC3.
(2) Turn the ignition switch ON.
(3) Erase DTCs and freeze frame data with the OBD II
scan tool (complying with SAE J1978) or the hand-
held tester. For the hand-held tester: 1) enter the
following menus: DIAGNOSIS / ENHANCED OBD
II / DTC INFO / CLEAR CODES; and 2) press YES.
For the OBD II scan tool, see its instruction manual.
(c) Clearing the DTCs not using the OBD II scan tool or the
hand-held tester.
Remove the EFI or ECD No. 1 and ETCS fuses from the
engine room J/B for more than 60 seconds, or disconnect
the battery terminal for more than 60 seconds.
After disconnecting the battery terminal, perform the ºINI-
TIALIZE procedure.
3. DTC CHECK (Check Mode)
HINT:
Hand-held tester only:
Check mode has a higher sensitivity to detect malfunctions and
can detect malfunctions that normal mode cannot detect.
Check mode can also detect all the malfunctions that normal
mode can detect.
(a) Follow these steps when preparing to use the hand-held
tester check mode.
(1) Make sure that the items below are true:

Battery positive voltage 11 V or more

Throttle valve fully closed

Transmission in the P or N position

A/C switched OFF
(2) Turn the ignition switch OFF.
(3) Connect the hand-held tester to the DLC3.
(4) Turn the ignition switch ON.
(5) Change the ECM to check mode with the hand-
held tester. Enter the following menus: DIAGNOSIS
/ ENHANCED OBD II / CHECK MODE. Make sure
the MIL flashes as shown in the illustration.
NOTICE:
All DTCs and freeze frame data recorded will be erased if:
1) the hand-held tester is used to change the ECM from
normal mode to check mode or vice-versa; or 2) during
check mode, the ignition switch is turned from ON to ACC
or OFF.

F05340
TOYOTA Hand-held Tester
DLC3
DI239-15
N09214
DLC3 DI-658
- DIAGNOSTICSPOWER TILT AND POWER TELESCOPIC STEERING
COLUMN
851 Author
: Date
:
2004 LAND CRUISER (RM1071U)
PRE-CHECK
1. DESCRIPTION
(a) DIAGNOSIS SYSTEM
When troubleshooting Multiplex OBD (M-OBD) vehicles,
the only difference from the usual troubleshooting proce-
dure is that you connect the TOYOTA hand-held tester
to vehicle, and read off various data output from the ve-
hicle's Power Tilt and Telescopic Steering ECU.
The Power Tilt and Telescopic Steering ECU records the
applicable DTCs when the computer detects a malfunc-
tion in the computer itself or its circuit.
To check the DTCs, connect a TOYOTA hand-held tester
to DLC3 on the vehicle. The TOYOTA hand-held tester
enables you to erase the DTCs and activate the several
actuators and check freeze frame data and various forms
on steering data.
(b) DATA LINK CONNECTOR 3 (DLC3)
The Power Tilt and Telescopic Steering ECU uses ISO
14230 for communication. The terminal arrangement of
DLC3 complies with SAE J1962 and matches the ISO
14230 format.
Terminal No.ConnectionVoltage or ResistanceCondition
7Bus + LinePulse generationDuring transmission
4Chassis Grounde Body Ground 1 W or lessAlways
5Signal Grounde Body Ground 1 W or lessAlways
16Battery Positivee Body Ground 9 - 14 VAlways
HINT:
If your display shows ºUNABLE TO CONNECT TO VEHICLEº
when you have connected the cable of TOYOTA hand-held
tester to DLC3, turned the ignition switch ON and operated the
TOYOTA hand-held tester, there is a problem on the vehicle
side or tester side.

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

If communication is still not possible when the tester is
connected to another vehicle, the problem is probably in
the tester itself, so consult the Service Department listed
in the tester's Operator's Manual.

DIB3P-01
A04550
13 9 14 10 15 11 16 1251 62 73 84
DLC3
H20916
DI-692
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
885 Author
: Date
:
2004 LAND CRUISER (RM1071U)
PRE-CHECK
1. DIAGNOSIS SYSTEM
(a) Check the DLC3.
HINT:
The vehicle's ECM uses ISO 9141-2 for communication. The
terminal arrangement of the DLC3 complies with SAE J1962
and matches the ISO 9141-2 format.
Terminal No.Connection/Voltage or ResistanceCondition
7Bus
Line/Pulse generationDuring Transmission
4Chassis Ground e Body Ground/1 W or lessAlways
16Battery Positive e Body Ground/ 9 - 14 VAlways
HINT:
If your display shows UNABLE TO CONNECT TO VEHICLE
when you have connected the cable of the OBD II scan tool or
TOYOTA hand-held tester to the DLC3, turned the ignition
switch ON and operated the scan tool, there is a problem on the
vehicle side or tool side.

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

If communication is still not possible when the tool
is connected to another vehicle, the problem is
probably in the tool itself, so consult the Service De-
partment listed in the tool's instruction manual.
2. SRS WARNING LIGHT CHECK
(a) Turn the ignition switch to ON, and check that the SRS
warning light comes on.
(b) Check that the SRS warning light goes out after approx.
6 seconds.
HINT:

When the ignition switch is at ON and the SRS warning
light remains on or flashes, the airbag sensor assembly
has detected a malfunction code.

If, after approx. 6 seconds have elapsed, the SRS warn-
ing light sometimes comes on even when the ignition
switch is OFF. In this case, a short in the SRS warning light
circuit is possible. Proceed to ºSRS warning light circuit
malfunctionº on page DI-927.

EM0KT-10
A07061
TOYOTA Hand-Held Tester
DLC3
A05511
A05512
SSTTC
E1
A04459
- ENGINE MECHANICALIGNITION TIMING
EM-9
1582 Author
: Date
:
2004 LAND CRUISER (RM1071U)
IGNITION TIMING
INSPECTION
1. REMOVE BATTERY CLAMP COVER
2. REMOVE INTAKE AIR CONNECTOR
3. REMOVE V-BANK COVER
4. WARM UP ENGINE
Allow the engine to warm up to the normal operating tempera-
ture.
5. CONNECT TOYOTA HAND-HELD TESTER OR OBD II
SCAN TOOL
(a) Connect the TOYOTA hand-held tester or OBD II scan
tool to the DLC3.
(b) Please refer to the TOYOTA hand-held tester or OBD II
scan tool operator's manual for further details.
6. CONNECT TIMING LIGHT TO ENGINE
Connect the tester probe of a timing light to the wire of the igni-
tion coil connector for No.1 cylinder.
7. CHECK IDLE SPEED
(a) Race the engine speed at 2,500 rpm for approx. 90 se-
conds.
(b) Check the idle speed.
Idle speed:
700 ± 50 rpm
8. INSPECT IGNITION TIMING
(a) Using SST, connect terminal TC and E1 of the DLC1.
SST 09843-18020
(b) Using a timing light, check the ignition timing.
Ignition timing:
5 - 15° BTDC @ idle
(Transmission in neutral position)
(c) Remove SST from the DLC1.
SST 09843-18020
9. DISCONNECT TIMING LIGHT FROM ENGINE
10. DISCONNECT TOYOTA HAND-HELD TESTER OR
OBD II SCAN TOOL

*The titles given inside the components are the names of the terminals (terminal codes) and are not treated as being
abbreviations.
2004 LAND CRUISER (EWD548U)
17 ABBREVIATIONS D
ABBREVIATIONS
The following abbreviations are used in this manual.
A/C = Air Conditioning
A/T = Automatic Transmission
ABS = Anti-Lock Brake System
ACIS = Acoustic Control Induction System
BA = Brake Assist
DIFF. = Differential
DVD = Digital Versatile Disc
EC = Electrochromic
ECU = Electronic Control Unit
ESA = Electronic Spark Advance
ETCS-i = Electronic Throttle Control System-intelligent
EVAP = Evaporative Emission
IC = Integrated Circuit
J/B = Junction Block
LH = Left-Hand
R/B = Relay Block
RH = Right-Hand
SFI = Sequential Multiport Fuel Injection
SRS = Supplemental Restraint System
SW = Switch
TEMP. = Temperature
TRAC = Traction Control
VSC = Vehicle Stability Control
VSV = Vacuum Switching Valve
w/ = With
w/o = Without

IN04S-46
- INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMSIN-25
25 Author
: Date
:
2004 LAND CRUISER (RM1071U)
HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS
GENERAL INFORMATION
A large number of ECU controlled systems are used in the LAND CRUISER. In general, the ECU controlled
system is considered to be a very intricate system requiring a high level of technical knowledge and expert
skill to troubleshoot. However, the fact is that if you proceed to inspect the circuits one by one, troubleshoot-
ing of these systems is not complex. If you have adequate understanding of the system and a basic knowl-
edge of electricity, accurate diagnosis and necessary repair can be performed to locate and fix the problem.
This manual is designed through emphasis of the above standpoint to help service technicians perform ac-
curate and effective troubleshooting, and is compiled for the following major ECU controlled systems:
The troubleshooting procedure and how to make use of it are described on the following pages.
SystemPage
1. EngineDI-1
2. Automatic TransmissionDI-358
3. ABS & Vehicle Stability Control (VSC) & Brake Assist (BA) SystemDI-502
4. Power Tilt and Power Telescopic Steering ColumnDI-656
5. Supplemental Restraint SystemDI-690
6. Wireless Door Lock Control SystemDI-936
7. Theft Deterrent SystemDI-953
8. Cruise Control SystemDI-979
9. Engine Immobiliser SystemDI-1002
10.Body Control SystemDI-1038
11. Driver Door Control SystemDI-1089
12.Multiplex Communication SystemDI-1 127
13.Navigation SystemDI-1 151
14.Rear View Monitor SystemDI-1268
15.Air Conditioning SystemDI-1300
FOR USING OBD II SCAN TOOL OR TOYOTA HAND-HELD TESTER

Before using the scan tool or tester, the scan tool's instruction book or tester's operator manual should
be read thoroughly.

If the scan tool or tester cannot communicate with ECU controlled systems when you have connected
the cable of the scan tool or tester to DLC3, turned the ignition switch ON and operated the scan tool,
there is a problem on the vehicle side or tool side.
(1) If communication is normal when the tool is connected to another vehicle, inspect the diagnosis
data link line (Bus
line) or ECU power circuit of the vehicle.
(2) If communication is still not possible when the tool is connected to another vehicle, the problem
is probably in the tool itself, so perform the Self Test procedures outline in the Tester Operator's
Manual.