1996 TOYOTA T100 automatic transmission

Downloaded from www.Manualslib.com manuals search engine INDEX
IN Introduction
MA Maintenance
PP Preparation
SS Service Specifications
DI Diagnostics
EM Engine Mechanical (3RZ-FE)
Engine Mechanical (5VZ-FE)
EC Emissions Control (3RZ-FE)
Emissions Control (5VZ-FE)
MF MFI System (3RZ-FE)
SF SFI System (5VZ-FE)
CO Cooling (3RZ-FE)
Cooling (5VZ-FE)
LU Lubrication (3RZ-FE)
Lubrication (5VZ-FE)
IG Ignition (3RZ-FE)
Ignition (5VZ-FE)
ST Starting (3RZ-FE)
Starting (5VZ-FE)
CH Charging (3RZ-FE)
Charging (5VZ-FE)
CL Clutch
MT Manual Transmission (R150, R150F)
Manual Transmission (W59)
AT Automatic Transmission
TR Transfer
PR Propeller Shaft
SA Suspension and Axle
BR Brake
SR Steering
RS Supplemental Restraint System
BE Body Electrical
BO Body
AC Air Conditioning

Downloaded from www.Manualslib.com manuals search engine IN02I−02
− INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMSIN−15
15 Author: Date:
1996 TOYOTA T100 (RM449U)
HOW TO TROUBLESHOOT ECU CONTROLLED SYSTEMS
GENERAL INFORMATION
A large number of ECU controlled systems are used in the TOYOTA T100. 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:
SystemPage
1. 3RZ−FE EngineDI−1
2. 5VZ−FE EngineDI−127
3. Automatic TransmissionDI−263
4. Anti−Lock Brake systemDI−319
5. Supplemental Restraint SystemDI−363
6. Cruise ControlDI−408
The troubleshooting procedure and how to make use of it are described on the above pages.

Downloaded from www.Manualslib.com manuals search engine DIAGNOSTIC TROUBLE CODE CHECK PROCEDURE
Diagnostic Trouble
Code Check (Make a
note of and then clear)Confirmation
of SymptomsDiagnostic Trouble
Code CheckProblem Condition
Diagnostic Trouble
Code DisplayProblem symptoms
existSame diagnostic
trouble code is
displayedProblem is still occurring in the diagnostic
circuit.
Normal code is
displayedThe problem is still occurring in a place
other than in the diagnostic circuit.
(The diagnostic trouble code displayed
first is either for a past problem or it is a
secondary problem.)
No problem
symptoms existThe problem occurred in the diagnostic
circuit in the past.
Normal Code DisplayProblem symptoms
existNormal code is
displayedThe problem is still occurring in a place
other than in the diagnostic circuit.
No problem
symptoms existNormal code is
displayedThe problem occurred in a place other
than in the diagnostic circuit in the past.
IN−18− INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
1996 TOYOTA T100 (RM449U)
2. SYMPTOM CONFIRMATION AND DIAGNOSTIC TROUBLE CODE CHECK
The diagnostic system in the TOYOTA T100 fulfills various functions. The first function is the Diagnostic
Trouble Code Check in which a malfunction in the signal circuits to the ECU is stored in code in the ECU
memory at the time of occurrence, to be output by the technician during troubleshooting. Another function
is the Input Signal Check which checks if the signals from various switches are sent to the ECU correctly.
By using these check functions, the problem areas can be narrowed down quickly and troubleshooting can
be performed effectively. Diagnostic functions are incorporated in the following systems in the TOYOTA
T100.
SystemDiagnostic Trouble
Code CheckInput Signal Check
(Sensor Check)Other Diagnosis
Function
Engine (3RZ−FE, 5VZ−FE)
Automatic Transmission
Anti−Lock Brake system
Supplemental Restraint System
Cruise Control (with Test Mode)
 (with Test Mode)






Cancel Signal
Check
In diagnostic trouble code check, it is very important to determine whether the problem indicated by the diag-
nostic trouble code is still occurring or occurred in the past but returned to normal at present. In addition,
it must be checked in the problem symptom check whether the malfunction indicated by the diagnostic
trouble code is directly related to the problem symptom or not. For this reason, the diagnostic trouble codes
should be checked before and after the symptom confirmation to determine the current conditions, as shown
in the table below. If this is not done, it may, depending on the case, result in unnecessary troubleshooting
for normally operating systems, thus making it more difficult to locate the problem, or in repairs not pertinent
to the problem. Therefore, always follow the procedure in correct order and perform the diagnostic trouble
code check.

Downloaded from www.Manualslib.com manuals search engine IN02L−01
− INTRODUCTIONTERMS
IN−31
31 Author: Date:
1996 TOYOTA T100 (RM449U)
TERMS
ABBREVIATIONS USED IN THIS MANUAL
AbbreviationsMeaning
ABSAnti−Lock Brake System
A.D.D.Automatic Disconnecting Differential
A/TAutomatic Transmission
AT FAutomatic Transmission Fluid
BTDCBefore Top Dead Center
Calif.California
CBCircuit Breaker
Diff.LockDifferential Locking System
DPDash Pot
ECUElectronic Control Unit
E/GEngine
ELREmergency Locking Retractor
ESAElectronic Spark Advance
EXExhaust (Manifold, Valve)
FIPGFormed in Place Gasket
FLFusible Link
FPUFuel Pressure Up
FrFront
IGIgnition
INIntake (Manifold, Valve)
J/BJunction Block
LHLeft−Hand
LLCLong Life Coolant (Year Around Coolant)
LSPVLoad Sensing Proportioning Valve
Max.Maximum
Min.Minimum
MPMultipurpose
M/TManual Transmission
O/D, ODOverdrive
OHCOver Head Camshaft
O/SOversize
PCVPositive Crankcase Ventilation
PSPower Steering
RHRight−Hand
RrRear
SRSSupplemental Restraint System
SSMSpecial Service Materials
SSTSpecial Service Tools
STDStandard
SWSwitch
TDCTop Dead Center
TEMP.Temperature

Downloaded from www.Manualslib.com manuals search engine − MAINTENANCEINSIDE VEHICLE
MA−3
38 Author: Date:
1996 TOYOTA T100 (RM449U)
13. ACCELERATOR PEDAL
Check the pedal for smooth operation and uneven pedal effort or catching.
14. CLUTCH PEDAL
(See page CL−2)
(a) Check the pedal for smooth operation.
(b) Check that the pedal has the proper freeplay.
15. BRAKE PEDAL
(See page BR−6)
(a) Check the pedal for smooth operation.
(b) Check that the pedal has the proper reserve distance and freeplay.
(c) Check the brake booster function.
16. BRAKES
At a safe place, check that the brakes do not pull to one side when applied.
17. PARKING BRAKE
(See page BR−8)
(a) Check that the lever has the proper travel.
(b) On a safe incline, check that the vehicle is held securely with only the parking brake applied.
18. AUTOMATIC TRANSMISSION ”PARK” MECHANISM
(a) Check the lock release button of the selector lever for proper and smooth operation.
(b) On a safe incline, check that the vehicle is held securely with the selector lever in ”P” position and all
brakes released.

Downloaded from www.Manualslib.com manuals search engine MA003−05
MA−4
− MAINTENANCEUNDER HOOD
39 Author: Date:
1996 TOYOTA T100 (RM449U)
UNDER HOOD
GENERAL MAINTENANCE
1. GENERAL NOTES
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 service 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 FULL and LOW lines on the see−through reservoir.
4. RADIATOR AND HOSES
(a) Check that the front of the radiator is clean and not blocked with leaves, dirt or bugs.
(b) Check the hoses for cracks, kinks, rot or loose connections.
5. BATTERY ELECTROLYTE LEVEL
Check that the electrolyte level of all battery cells is between the upper and lower level lines on the case.
6. BRAKE AND CLUTCH FLUID LEVELS
Check that the brake and clutch fluid levels are near the upper level line on the see−through reservoirs.
7. ENGINE DRIVE BELTS
Check all drive belts 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
(a) Check the level on the dipstick.
(b) The level should be in the HOT or COLD range depending on the fluid temperature.
10. AUTOMATIC TRANSMISSION FLUID LEVEL
(a) Park the vehicle on a level surface.
(b) With the engine idling and the parking brake applied, shift the selector into all positions from the P to
L, and then shift into the P position.
(c) Pull out the dipstick and wipe off the fluid with a clean rag. Re−insert the dipstick and check that the
fluid level is in the HOT range.
(d) Do this check with the fluid at normal driving temperature (70 − 80°C, 158 − 176°F).
HINT:
Wait until the engine cools down (approx. 30 min.) before checking the fluid level after extended driving at
high speeds, in hot weather, in heavy traffic or pulling a trailer.
11. EXHAUST SYSTEM
(a) Visually inspect for cracks, holes or loose supports.
(b) If any change in the sound of the exhaust or smell of the exhaust fumes is noticed, have the cause
located and corrected.

Downloaded from www.Manualslib.com manuals search engine B02091
Z04824
A/T
OK if coolOK if hot
Add if coolAdd if hot
B02092
B02093
− MAINTENANCECHASSIS
MA−9
44 Author: Date:
1996 TOYOTA T100 (RM449U)
6. 2WD:
CHECK OIL LEVEL IN MANUAL TRANSMISSION, AU-
TOMATIC TRANSMISSION AND DIFFERENTIAL
(a) Manual transmission:
Remove the filler plug and feel inside the hole with your
finger. Check that the oil comes to within 5 mm (0.20 in.)
of the bottom edge of the hole. If the level is low, add oil
until it begins to run out of the filler hole.
Transmission oil (M/T):
R150: See page MT−5
W59: See page MT−5
(b) Automatic transmission:
Check that the fluid level is in the ”HOT” range at the nor-
mal operating temperature (70 − 80°C or 158 − 176°F)
and add as necessary.
NOTICE:
Do not overfill.
Transmission fluid (A/T): See page
DI−265
(c) Differential:
Remove the filler plug and feel inside the hole with your
finger. Check that the oil comes to within 5 mm (0.20 in.)
of the bottom edge of the hole. If the level is low, add oil
until it begins to run out of the filler hole.
Differential oil: See page SA−154
7. 5VZ−FE (4WD):
CHECK OIL LEVEL IN MANUAL TRANSMISSION, AU-
TOMATIC TRANSMISSION, TRANSFER AND DIFFER-
ENTIAL
(a) Manual transmission:
Remove the filler plug and feel inside the hole with your
finger. Check that the oil comes to within 5 mm (0.20 in.)
of the bottom edge of the hole. If the level is low, add oil
until it begins to run out of the filler hole.
Transmission oil (M/T):
R150F: See page MT−10

Downloaded from www.Manualslib.com manuals search engine Z04824
A/T
OK if coolOK if hot
Add if coolAdd if hot
B02094
B02095
MA−10
− MAINTENANCECHASSIS
45 Author: Date:
1996 TOYOTA T100 (RM449U)
(b) Automatic transmission:
Check that the fluid level is in the ”HOT” range at the nor-
mal operating temperature (70 − 80°C or 158 − 176°F)
and add as necessary.
NOTICE:
Do not overfill.
Transmission fluid (A/T): See page
DI−265
(c) Transfer:
Remove the filler plug and feel inside the hole with your
finger. Check that the oil comes to within 5 mm (0.20 in.)
of the bottom edge of the hole. If the level is low, add oil
until it begins to run out of the filler hole.
Transfer oil: See page TR−3
(d) Differential:
Remove the filler plug and feel inside the hole with your
finger. Check that the oil comes to within 5 mm (0.20 in.)
of the bottom edge of the hole. If the level is low, add oil
until it begins to run out of the filler hole.
Front differential oil: See page SA−43
Rear differential oil: See page SA−154
8. REPLACE MANUAL TRANSMISSION, TRANSFER
(5VZ−FE: 4WD) AND DIFFERENTIAL OIL
(a) Transfer:
Remove the transfer cover.
(b) Remove the drain plug and drain the oil.
(c) Reinstall drain plug securely.
(d) Add new oil until it begins to run out of the filler hole.
(2WD) Transmission oil (M/T):
R150: See page MT−5
W59: See page MT−5