Page 142 of 1399
−
AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION UNIT
AT−23
1996 LAND CRUISER (RM451U)
11. REMOVE 4 STABILIZER BAR BRACKET MOUNTING
BOLTS
Torque: 18 N·m (185 kgf·cm, 13 ft·lbf)
12. REMOVE ENGINE UNDER COVER
Remove the 4 bolts and engine under cover. Torque: 28 N·m (290 kgf·cm, 21 ft·lbf)
13. REMOVE TORQUE CONVERTER CLUTCH MOUNT- ING BOLT
(a) Remove the converter hole plug.
(b) Turn the crankshaft to gain access to each bolt.
(c) Hold the crankshaft pulley nut with a wrench and remove the 6 bolts.
Torque: 55 N·m (550 kgf·cm, 40 ft·lbf)
HINT:
At the time of installation, first install gray colored bolt and then
5 other bolts.
14. REMOVE FRONT EXHAUST PIPE ASSEMBLY
(a) Remove the 2 nuts, bolts and gasket, and disconnect the
front exhaust pipe assembly.
Torque: 39 N·m (400 kgf·cm, 29 ft·lbf)
HINT:
At the time of inatallation, replace the used nuts and gasket with
new nuts and gasket.
(b) Loosen the clamp bolt and disconnect the clamp from the
No.1 support bracket.
Torque: 19 N·m (195 kgf·cm, 14 ft·lbf)
(c) Remove the 2 bolts and No.1 support bracket. Torque: 24 N·m (240 kgf·cm, 17 ft·lbf)
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Q07409
AT−24
−
AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION UNIT
1996 LAND CRUISER (RM451U)
(d) Remove the 4 nuts and 2 gaskets, shift the front exhaust
pipe assembly to the vehicle’s outside.
Torque: 62 N·m (630 kgf·cm, 46 ft·lbf)
HINT:
At the time of installation, replace the used gaskets and nuts
with new gaskets and nuts.
15. REMOVE STARTER
(a) Remove the nut and disconnect the terminal and connec-
tor.
(b) Remove the lower side mounting bolt and starter. Torque: 39 N·m (400 kgf·cm, 29 ft·lbf)
16. REMOVE CROSSMEMBER
(a) Support the transmission with a transmission jack.
(b) Remove the 8 bolts and 2 nuts, and then remove the crossmember.
Torque:
Bolt: 61 N·m (620 kgf·cm, 45 ft·lbf)
Nut: 74 N·m (750 kgf·cm, 54 ft·lbf)
17. REMOVE TRANSMISSION
(a) Lower the rear end of the transmission.
NOTICE:
Be careful not to damage the cooling fan, brake booster
and brake line.
(b) Separate the wire harness from the transmission and transfer.
(c) Remove the oil cooler pipe mounting bolts from the torque
converter clutch housing, and then disconnect the 2 oil
cooler pipes from the elbows.
(d) Remove the 10 bolts and transmission. Torque: 72 N·m (730 kgf·cm, 53 ft·lbf)
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AT0TD−01
−
AUTOMATIC TRANSMISSION AUTOMATIC TRANSMISSION UNIT
AT−25
1996 LAND CRUISER (RM451U)
INSTALLATION
1. CHECK TORQUE CONVERTER CLUTCH INSTALLA-
TION
Using calipers and a straight edge, measure from the installed
surface of the transmission housing. Correct distance: More than 15.7 mm (0.618 in.)
2. INSTALL TRANSMISSION
Installation is in the reverse order of removal (See page
AT −20 ).
HINT:
After installation, adjust the shift lever position and throttle
cable (See page DI−131).
Fill and check fluid level (See page DI−131).
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CO118−01
CO−16
−
COOLING RADIATOR
1996 LAND CRUISER (RM451U)
INSTALLATION
1. INSTALL RADIATOR
(a) Install the 2 radiator brackets with the 4 nuts. Torque: 12 N·m (120 kgf·cm, 9 ft·lbf)
(b) Install the radiator with the 2 bolts and 2 nuts. Torque:
Bolt: 18 N·m (185 kgf·cm, 13 ft·lbf)
Nut: 12 N·m (120 kgf·cm, 9 ft·lbf)
2. CONNECT A/T OIL COOLER HOSES
3. CONNECT RADIATOR OUTLET HOSE
4. INSTALL WATER PUMP PULLEY, FAN SHROUD, FAN WITH FLUID COUPLING AND DRIVE BELTS
(a) Place the fan with fluid coupling, water pump pulley and fan shroud in position.
(b) Temporarily install the fan pulley mounting nuts.
(c) Install the fan shroud with the 2 bolts. Torque: 5.0 N·m (50 kgf·cm, 43 in.·lbf)
(d) Connect the oil cooler hose to the clamp on the fan
shroud.
(e) Install the drive belts with the adjusting bolt and pivot bolt.
(f) Stretch the belts tight and tighten the 4 water pump pulley mounting nuts.
(g) Adjust the drive belts (See page CH−2 ).
5. CONNECT RADIATOR RESERVOIR HOSE
6. CONNECT RADIATOR INLET HOSE
7. CONNECT NO.3 WATER BYPASS HOSE
8. INSTALL RADIATOR GRILLE
Install the radiator grille with the 5 screws and clip.
9. INSTALL BATTERY AND BATTERY TRAY
(a) Install the battery tray with the 5 bolts.
(b) Connect the ground strap with the bolt.
(c) Install the battery with the hold−down clamp and nuts.
(d) Connect the battery cables.
10. FILL RADIATOR WITH ENGINE COOLANT
11. START ENGINE AND CHECK FOR LEAKS
12. CHECK AUTOMATIC TRANSMISSION FLUID LEVEL
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DI5K4−03
Vehicle Brought to Workshop
Customer Problem Analysis
Check DTC and Freezes Frame Data (Pre−check)
Record or Print DTC and Freezed Frame Data
DI−131
Clear DTC and Freezed Frame Data DI−131
Visual Inspection
Setting the Check Mode Diagnosis
DI−131
1
Items insideare titles of pages in this manual, with the
page number indicated in the bottom portion. See the indicated
pages for detailed explanations.
Connect an OBD II scan tool or TOYOTA hand−held tester to DLC3.
If your display shows ”UNABLE TO CONNECT TO VEHICLE” when you have connected the
scan tool/TOYOTA hand− held tester, inspect DLC3
DI−131
2
3
4
5
6
symptom does not occur
Problem Symptom Confirmation8
7Symptom Simulation
symptom occurs
DTC Check
DI−131 OK Code
11Preliminary Check
DTC ChartMechanical System Tests
Manual Shifting Test
OK
OK
Chapter 1
(Electronic) Chapter 2
(On−Vehicle)OKChapter 3
(Off
−Vehicle)OK
Matrix Chart of Problem Symptoms
− DI−147
Circuit
InspectionStop Light Signal
O/D Cancel Signal Check
NG
Parts Inspection
NG
NG NG
Identification of ProblemRepairConfirmation TestEnd
NG
NG
12
NG13
14
15 16
17
9
10
DI−153 − DI−185
18
DI−130
DI−143
DI−131
DI−131
DI−131
DI−147 DI−147
DI−147
P.IN−18
Step 2, 3, 4, 6, 9, 15, 18:
Diagnostic steps permitting the use of the TOYOTA
hand−held tester or TOYOTA brake− out−box.
−
DIAGNOSTICS AUTOMATIC TRANSMISSION
DI−129
296
Author: Date:
1996 LAND CRUISER (RM451U)
AUTOMATIC TRANSMISSION
HOW TO PROCEED WITH TROUBLESHOOTING
Troubleshoot in accordance with the procedure on the following page.
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DI5K6−01
Transmission Control
System Check SheetInspector ’s
Name
:
Customer ’s Name
Registration No.
Registration Year
Frame No.
Date Vehicle
Brought In Odometer Reading
km
mile
/ /
/ /
Date Problem
Occurred
How Often Does
Problem Occur? / /
Continuous Intermittent ( times a day)
Symptoms
Vehicle does not move ( Any position Particular position )
No up−shift ( 1st → 2nd 2nd → 3rd 3rd → O/D )
No down−shift ( O/D → 3rd 3rd → 2nd 2nd → 1st )
Lock−up malfunction
Shift point too high or too low
Harsh engagement ( N → D Lock −up Any drive position )
Slip or shudder
No kick− down
Others
Check Item Malfunction
Indicator Lamp
DTC Check1st Time
2nd Time
Normal code Malfunction code (Code )
Normal
Remains ON
Normal code Malfunction code (Code )
DI−130
−
DIAGNOSTICS AUTOMATIC TRANSMISSION
1996 LAND CRUISER (RM451U)
CUSTOMER PROBLEM ANALYSIS CHECK
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DI5K9−03
Q08225
Q08634
TOYOTA Hand−held Tester
DLC3
−
DIAGNOSTICS AUTOMATIC TRANSMISSION
DI−131
1996 LAND CRUISER (RM451U)
PRE−CHECK
1. DIAGNOSIS SYSTEM
(a) Description
When troubleshooting OBD II vehicles, the only dif-
ference from the usual troubleshooting procedure
is that you connect to the vehicle the OBD II scan
tool complying with SAE J1978 or TOYOTA hand −
held tester, and read off various data output from
the vehicle’s ECM.
OBD II regulations require that the vehicle’s on −
board computer lights up the Malfunction Indicator
Lamp (MIL) on the instrument panel when the com-
puter detects a malfunction in the computer itself or
in drive system components which affect vehicle
emissions. In addition to the MIL lighting up when
a malfunction is detected, the applicable DTCs pre-
scribed by SAE J2012 are recorded in the ECM
memory (See page DI−13).
If the malfunction does not occurs in 3 trips, the MIL goes off but
the DTCs remain recorded in the ECM memory.
To check the DTCs, connect an OBD II scan tool or
TOYOTA hand−held tester to the DLC3 on the ve-
hicle. The OBD II scan tool or TOYOTA hand−held
tester also enables you to erase the DTCs and
check freeze frame data and various forms of en-
gine data (For operating instructions, see the OBDII
scan tool’s instruction book).
DTCs include SAE controlled codes and Manufac-
turer controlled codes.
SAE controlled codes must be set as prescribed by
the SAE, while Manufacturer controlled codes can
be set freely by the manufacturer within the pre-
scribed limits (See page DI−143).
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Q08225
Q08634
TOYOTA Hand−held Tester
DLC3
DI−132
−
DIAGNOSTICS AUTOMATIC TRANSMISSION
1996 LAND CRUISER (RM451U)
The diagnosis system operates in normal mode
during normal vehicle use, and also has a check
mode for technicians to simulate malfunction symp-
toms and perform troubleshooting. Most DTCs use
2 trip detection logic(*) to prevent erroneous detec-
tion. By switching the ECM to check mode when
troubleshooting, the technician can cause the MIL
to light up for a malfunction that is only detected
once or momentarily (TOYOTA hand−held tester)
(See step 3).
*2 trip detection logic:
When a logic malfunction is first detected, the mal-
function is temporarily stored in the ECM memory.
If the same malfunction is detected again during the 2nd test
drive, this 2nd detection causes the MIL to light up.
2. Normal Mode: INSPECT DIAGNOSIS
(a) Check the MIL. (1) The MIL lights up when the ignition switch is turnedON and the engine is not running.
HINT:
If the MIL does not light up, troubleshoot the combination meter
(See page BE−2 ).
(2) When the engine is started, the MIL should go off.
If the lamp remains on, the diagnosis system has
detected a malfunction or abnormality in the sys-
tem.
(b) Check the DTC.
NOTICE:
TOYOTA hand−held tester only:
When the diagnostic system is switched from the normal
mode to the check mode, it erases all DTCs and freeze
frame data recorded in the normal mode. So before switch-
ing modes, always check the DTCs and freeze frame data,
and note them down. (1) Prepare the OBD II scan tool (complying with SAEJ1978) or TOYOTA hand−held tester.
(2) Connect the OBD II scan tool or TOYOTA hand−
held tester to the DLC3 in the fuse box at the lower
left of the instrument panel.
(3) Turn the ignition switch ON and turn the OBD II scan
tool or TOYOTA hand−held tester switch ON.
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