Ait TOYOTA T100 1996 Factory Service Manual

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 R07710R07711H00318
w/ Tachometer
w/o Tachometer
DI0XJ−02
S08098
E1 Tc
AT0716
Normal Code
ON
OFF0.25
0.25
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI−365
1996 TOYOTA T100 (RM449U)
PRE−CHECK
1. SRS WARNING LIGHT CHECK
(a) Turn the ignition switch to ACC or ON and check that the
SRS warning light lights up.
(b) Check that the SRS warning light goes out after approx.
6 seconds.
HINT:
When the ignition switch is at ACC or ON and the SRS
warning light remains on or flashes, the airbag sensor as-
sembly has detected a malfunction code.
If, after approx. 6 seconds have elapsed, the SRS warn-
ing light sometimes lights up or the SRS warning light
lights up even when the ignition switch is OFF, a short in
the SRS warning light circuit can be considered likely.
Proceed to ”SRS warning light system malfunction” on
page DI−398, DI−400.
2. DTC CHECK (Using diagnosis check wire)
(a) Output the DTC.
(1) Turn the ignition switch to ACC or ON position and
wait approx. 20 seconds.
(2) Using SST, connect terminals Tc and E1 of the
DLC1.
SST SST 09843−18020
NOTICE:
Never make a mistake with the terminal connection posi-
tion as this will cause a malfunction.
(b) Read the DTC.
Read the 2−digit DTC as indicated by the number of times
the SRS warning light blinks. As an example, the blinking
patterns, normal, 11 and 31 are as shown on the illustra-
tion.
Normal code indication:
The light will blink 2 times per second.
Malfunction code indication:
The first blinking output indicates the first digit
of a 2−digit DTC. After a 1.5 second pause,
the second blinking output will indicate the
second digit.

Downloaded from www.Manualslib.com manuals search engine AB0056
Code 11 and 31
ON
OFF
0.5 2.54.0
1.5 0.5
Code 11Code 31Repeat
S07739
DI−366
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TOYOTA T100 (RM449U)
If there are 2 or more codes, there will be a 2.5 second pause
between each codes. After al the codes have been output,
there will be a 4.0 second pause and they will all be repeated.
HINT:
In the event of a number of trouble codes, indication will
start from the smallest numbered code.
If it does not output a DTC or outputs a DTC without termi-
nal connection, proceed to the Tc terminal circuit inspec-
tion on page DI−403.
3. DTC CHECK (Using TOYOTA hand−held tester)
(a) Hook up the TOYOTA hand−held tester to the DLC1.
(b) Read the DTCs by following the prompts on the tester
screen.
HINT:
Please refer to the TOYOTA hand−held tester operator’s manu-
al, for further details.
4. DTC CLEARANCE (Using diagnosis check wire)
(a) Conncect the 2 service wires to terminals Tc nad AB of
DLC1.
(b) Turn the ignition switch to ACC or ON and wait approx.
6 seconds.
(c) Starting with the Tc terminal, apply body ground alternate-
ly to terminal Tc and terminal AB twice each in cycles of
1.0 seconds. Confirm that body ground is absolute.
Finally, keep applying body ground to terminal Tc.
HINT:
When alternately groundling terminals Tc and AB, release
grounf from one terminal and immediately apply it to the other
terminal within an interval of 0.2 second. If DTCs do not clear,
repeat the above procedure until the codes are cleared.

Downloaded from www.Manualslib.com manuals search engine W05582AB0118AB0119AB0069S08098W02042H00324
Spiral
Cable
ACC ON
D−D+
or
DLC1
E1
Tc
Code 11
Center Airbag
Sensor Assembly
D Squib
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI−375
1996 TOYOTA T100 (RM449U)
4 Check center airbag sensor assembly.
PREPARATION:
(a) Connect connector to center airbag sensor assembly.
(b) Using a service wire, connect D+ and D− on spiral cable
side of connector between spiral cable and steering
wheel pad.
(c) Connect negative (−) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory.
(See page DI−365)
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC1.
SST 09843−18020
(f) Check DTC.
OK:
DTC 11 is not output.
HINT:
Codes other than code 11 may be output at this time, but they
are not relevant to this check.
NG Replace center airbag sensor assembly.
OK

Downloaded from www.Manualslib.com manuals search engine AB0118AB0119S08098W02042
H00352
H00325
Center Airbag
Sensor Assembly
Spiral
CableD Squib
ACC ON
or
DLC1
E1
Tc
Code 11
DI−376
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TOYOTA T100 (RM449U)
5 Check D squib.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (−) terminal cable from the battery,
and wait at least 90 seconds.
(c) Connect steering wheel pad connector.
(d) Connect negative (−) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory.
(See page DI−365)
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC1.
SST 09843−18020
(f) Check DTC.
OK:
DTC 11 is not output.
HINT:
Codes other than code 11 may be output at this time, but they
are not relevant to this check.
NG Replace steering wheel pad.
OK
From results of above inspection, malfunctioning part can now be considered normal.
To make sure of this, use simulation method to check. If malfunctioning part can not be detected
by imulation method, replace all SRS components including wire harness.

Downloaded from www.Manualslib.com manuals search engine W05582AB0118AB0119AB0069S08098W02043H00329
Center Airbag
Sensor Assembly
Spiral
Cable
ACC ON
D−D+
or
DLC1
E1Code 12
TcD Squib
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI−381
1996 TOYOTA T100 (RM449U)
3 Check center airbag sensor assembly.
PREPARATION:
(a) Turn ignition switch LOCK.
(b) Disconnect negative (−) terminal cable from battery.
(c) Connect connector to center airbag sensor assembly.
(d) Using a service wire, connect D+ and D− on spiral cable
side of connector between spiral cable and steering
wheel pad.
(e) Connect negative (−) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory (See page
DI−365).
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC1.
SST 09843−18020
(f) Check DTC.
OK:
DTC 12 is not output.
HINT:
Codes other than code 12 may be output at this time, but they
are not relevant to this check.
NG Replace center airbag sensor assembly.
OK

Downloaded from www.Manualslib.com manuals search engine AB0118 AB0119
S08098W02043
H00352
H00330
Center Airbag
Sensor Assembly
Spiral
CableD Squib
ACC ON
or
DLC1
E1
Tc
Code 12
DI−382
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TOYOTA T100 (RM449U)
4 Check D squib.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (−) terminal cable from the battery,
and wait at least 90 seconds.
(c) Connect steering wheel pad connector.
(d) Connect negative (−) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory (See page
DI−365).
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC1.
SST 09843−18020
(f) Check DTC.
OK:
DTC 12 is not output.
HINT:
Codes other than code 12 may be output at this time. but they
are not relevant to this check.
NG Replace steering wheel pad.
OK
From results of above inspection, malfunctioning part can now be considered normal.
To make sure of this, use simulation method to check.

Downloaded from www.Manualslib.com manuals search engine AB0118AB0119AB0069S08098
W05582
W02044H00338
Spiral
CableD Squib
ACC ON
D−D+
or
DLC1
E1
Tc
Code 14
Center Airbag
Sensor Assembly
DI−386
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TOYOTA T100 (RM449U)
3 Check center airbag sensor assembly.
PREPARATION:
(a) Connect connector to center airbag sensor assembly.
(b) Using a service wire, connect D+ and D− on spiral cable
side of connector between spiral cable and steering
wheel pad.
(c) Connect negative (−) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory (See page
DI−365).
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC1.
SST 09843−18020
(f) Check DTC.
OK:
DTC 14 is not output.
HINT:
Codes other than code 14 may be output at this time, but they
are relevant to this check.
NG Go to step 7.
OK

Downloaded from www.Manualslib.com manuals search engine AB0118AB0119S08098W02044
H00352
H00339
Center Airbag
Sensor Assembly
D Squib
Spiral
Cable
ACC ON
or
DLC1
E1
Tc
Code 14
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI−387
1996 TOYOTA T100 (RM449U)
4 Check D squib.
PREPARATION:
(a) Turn ignition switch to LOCK.
(b) Disconnect negative (−) terminal cable from the battery,
and wait at least 90 seconds.
(c) Connect steering wheel pad connector.
(d) Connect negative (−) terminal cable to battery, and wait
at least 2 seconds.
CHECK:
(a) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory (See page
DI−365).
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E1 of DLC1.
SST 09843−18020
(f) Check DTC.
OK:
DTC 14 is not output.
HINT:
Codes other than code 14 may be output at this time, but they
are not relevant to this check.
NG Replace steering wheel pad.
OK
From results of above inspection, malfunctioning part can now be considered normal.
To make sure of this, use simulation method to check.

Downloaded from www.Manualslib.com manuals search engine AB0118
R13006AB0069
AB0119W02044
H01002
H01140
D Squib
Spiral
CableAirbag
Sensor
Assembly
ON
D+
DLC1 DTC 14ACC
or D−
Tc E1
− DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI−389
1996 TOYOTA T100 (RM449U)
7 Check center airbag sensor assembly.
CHECK:
(a) Turn ignition switch to ACC or ON and wait at least 20 se-
conds.
(b) Clear malfunction code stored in memory (See page
DI−365).
(c) Turn ignition switch to LOCK, and wait at least 20 se-
conds.
(d) Turn ignition switch to ACC or ON, and wait at least 20 se-
conds.
(e) Using SST, connect terminals Tc and E
1 of DLC1.
SST 09843−18020
(f) Check DTC.
OK:
DTC 14 is not output.
HINT:
Codes other than code 14 may be output at this time, but they
are not relevant to this check.
NG Replace center airbag sensor assembly.
OK
From the results of the above inspection, the malfunctioning part can now be considered normal.
To make sure of this, use the simulation method to check.