airbag TOYOTA T100 1996 Factory Service Manual

Downloaded from www.Manualslib.com manuals search engine IN02H−03
BO4111
Negative Cable
− INTRODUCTIONFOR ALL OF VEHICLES
IN−9
9 Author: Date:
1996 TOYOTA T100 (RM449U)
FOR ALL OF VEHICLES
PRECAUTION
1. FOR VEHICLES EQUIPPED WITH SRS AIRBAG
(a) The TOYOTA T100 is equipped with an SRS (Supple-
mental Restraint System), such as the driver airbag.
Failure to carry out service operations in the correct se-
quence could cause the supplemental restraint system to
unexpectedly deploy during servicing, possibly leading to
a serious accident.
Further, if a mistake is made in servicing the supplemental
restraint system, it is possible the SRS may fail to operate
when required. Before servicing (including removal or
installation of parts, inspection or replacement), be sure
to read the following items carefully, then follow the cor-
rect procedure described in this manual.
(b) GENERAL NOTICE
(1) Malfunction symptoms of the supplemental re-
straint system are difficult to confirm, so the diag-
nostic trouble codes become the most important
source of information when troubleshooting. When
troubleshooting the supplemental restraint system,
always inspect the diagnostic trouble codes before
disconnecting the battery (See page DI−365).
(2) Work must be started after 90 seconds from the
time the ignition switch is turned to the ”LOCK” posi-
tion and the negative (−) terminal cable is discon-
nected from the battery.
(The supplemental restraint system is equipped
with a back−up power source so that if work is
started within 90 seconds of disconnecting the neg-
ative (−) terminal cable from the battery, the SRS
may deploy.)
When the negative (−) terminal cable is discon-
nected from the battery, memory of the clock and
audio systems will be cancelled. So before starting
work, make a record of the contents memorized by
the each memory system. Then when work is fin-
ished, reset the clock and audio systems as before.
To avoid erasing the memory of each memory sys-
tem, never use a back−up power supply from out-
side the vehicle.
(3) Even in cases of a minor collision where the SRS
does not deploy, the steering wheel pad should be
inspected (See page RS−9).

Downloaded from www.Manualslib.com manuals search engine B01124
Front IN−10
− INTRODUCTIONFOR ALL OF VEHICLES
10 Author: Date:
1996 TOYOTA T100 (RM449U)
(4) Never use SRS parts from another vehicle. When
replacing parts, replace them with new parts.
(5) Before repairs, remove the center airbag sensor if
shocks are likely to be applied to the sensor during
repairs.
(6) Never disassemble and repair the center airbag
sensor assembly, steering wheel pad in order to re-
use it.
(7) If the center airbag sensor assembly, steering
wheel pad have been dropped, or if there are
cracks, dents or other defects in the case, bracket
or connector, replace them with new ones.
(8) Do not expose the center airbag sensor assembly,
steering wheel pad directly to hot air or flames.
(9) Use a volt/ohmmeter with high impedance (10 kΩ/V
minimum) for troubleshooting of the electrical cir-
cuit.
(10) Information labels are attached to the periphery of
the SRS components. Follow the instructions on the
notices.
(11) After work on the supplemental restraint system is
completed, check the SRS warning light (See page
DI−365).
(c) FRONT AIRBAG SENSOR
(1) Never reuse the front airbag sensors involved in a
collision that activated the supplemental restraint
system. (Replace both left and right airbag sen-
sors.)
(2) Install the front airbag sensor with the arrow on the
sensor facing toward the front of the vehicle.
The front airbag sensor set bolts have been anti−
rust treated. When the sensor is removed, always
replace the set bolts with new ones.
(3) The front airbag sensor is equipped with an electri-
cal connection check mechanism. Be sure to lock
this mechanism securely when connecting the con-
nector.
(4) If connector is not securely locked, a malfunction
code will be the diagnosis system (See page
RS−2).

Downloaded from www.Manualslib.com manuals search engine Z13953
Example:Correct Wrong
Z13950
Example: IN−12
− INTRODUCTIONFOR ALL OF VEHICLES
12 Author: Date:
1996 TOYOTA T100 (RM449U)
(e) STEERING WHEEL PAD (with Airbag)
(1) When removing the steering wheel pad or handling
a new steering wheel pad, it should be placed with
the pad top surface facing up.
In this case, the twin−lock type connector lock lever
should be in the locked state and care should be
taken to place it so the connector will not be dam-
aged. In addition do not store a steering wheel pad
on top of another one. Storing the pad withits metal-
lic surface facing upward may lead to a serious acci-
dent if the airbag inflates for some reason.
(2) Never measure the resistance of the airbag squib.
(This may cause the airbag to deploy, which is very
dangerous.)
(3) Grease should not be applied to the steering wheel
pad and the pad should not be cleaned with deter-
gents of any kind.
(4) Store the steering wheel pad where the ambient
temperature remains below 93°C (200°F), without
high humidity and away from electrical noise.
(5) When using electric welding, first disconnect the air-
bag connector (yellow color and 2 pins) under the
steering column near the combination switch con-
nector before starting work.
(6) When disposing of a vehicle or the steering wheel
pad alone, the airbag should be deployed using an
SST before disposal (See page RS−11).
Carry out the operation in a safe place away from
electrical noise.

Downloaded from www.Manualslib.com manuals search engine − INTRODUCTIONFOR ALL OF VEHICLES
IN−13
13 Author: Date:
1996 TOYOTA T100 (RM449U)
(f) CENTER AIRBAG SENSOR ASSEMBLY
(1) Never reuse the center airbag sensor assembly in-
volved in a collision when the SRS has deployed.
(2) The connectors to the center airbag sensor assem-
bly should be connected or disconnected with the
sensor mounted on the floor. If the connectors are
connected or disconnected while the center airbag
sensor assembly is not mounted to the floor, it could
cause undesired ignition of the supplemental re-
straint system.
(3) Work must be started after 90 seconds from the
time the ignition switch is turned to the ”LOCK” posi-
tion and the negative (−) terminal cable is discon-
nected from the battery, even if only loosening the
set bolts of the center airbag sensor assembly.
(g) WIRE HARNESS AND CONNECTOR
The SRS wire harness is integrated with the cowl wire har-
ness assembly and floor wire harness assembly. The
wires for the SRS wire harness are encased in a yellow
corrugated tube. All the connectors for the system are
also a standard yellow color. If the SRS wire harness be-
comes disconnected or the connector becomes broken
due to an accident, etc., repair or replace it.
2. FOR VEHICLES EQUIPPED WITH A CATALYTIC CONVERTER
CAUTION:
If large amount of unburned gasoline flows into the converter, it may overheat and create a fire haz-
ard. To prevent this, observe the following precautions and explain them to your customer.
(a) Use only unleaded gasoline.
(b) Avoid prolonged idling.
Avoid running the engine at idle speed for more than 20 minutes.
(c) Avoid spark jump test.
(1) Perform spark jump test only when absolutely necessary. Perform this test as rapidly as possible.
(2) While testing, never race the engine.
(d) Avoid prolonged engine compression measurement.
Engine compression tests must be done as rapidly as possible.
(e) Do not run engine when fuel tank is nearly empty.
This may cause the engine to misfire and create an extra load on the converter.
(f) Avoid coasting with ignition turned off and prolonged braking.
(g) Do not dispose of used catalyst along with parts contaminated with gasoline or oil.

Downloaded from www.Manualslib.com manuals search engine B02088
MA015−02
B02089
B02090
MA−8
− MAINTENANCECHASSIS
43 Author: Date:
1996 TOYOTA T100 (RM449U)
CHASSIS
INSPECTION
1. INSPECT STEERING LINKAGE
(a) Check the steering wheel freeplay (See page SR−9).
(b) Check the steering linkage for looseness or damage.
Check that:
Tie rod ends and relay rod ends do not have exces-
sive play.
Dust seals are not damaged.
2WD:
Boot clamps are not loose.
2. INSPECT SRS AIRBAG (See page RS−2)
3. INSPECT STEERING GEAR HOUSING OIL
Check the steering gear housing for oil leaks.
If leakage is found, check for cause and repair.
4. 4WD:
INSPECT DRIVE SHAFT BOOTS
Inspect the drive shaft boots for clamp looseness, grease leak-
age or damage.
5. INSPECT BALL JOINTS AND DUST COVERS
(a) Inspect the ball joints for excessive looseness.
(b) Inspect the dust cover for damage.

Downloaded from www.Manualslib.com manuals search engine PP0FR−01
− PREPARATIONSUPPLEMENTAL RESTRAINT SYSTEM
PP−11 3
162 Author: Date:
1996 TOYOTA T100 (RM449U)
SUPPLEMENTAL RESTRAINT SYSTEM
SST (Special Service Tools)
09082−00700SRS Airbag Deployment Tool
09843−18020Diagnosis Check Wire

Downloaded from www.Manualslib.com manuals search engine PP0FT−01
− PREPARATIONSUPPLEMENTAL RESTRAINT SYSTEM
PP−11 5
1996 TOYOTA T100 (RM449U)
EQUIPMENT
Torque wrench
Bolt: Length: 35mm (1.38 in.) Pitch: 1.0 mm (0.039 in.)
Diam.: 6.0 mm (0.236 in.)Airbag disposal
Tire Width: 185 mm (7.28 in.) Inner diam.: 360 mm (14.17 in.)Airbag disposal
Tire with disc wheel Width: 185 mm (7.28 in.)
Inner diam.: 360 mm (14.17 in.)Airbag disposal
vinyl bagAirbag disposal

Downloaded from www.Manualslib.com manuals search engine SS08E−01
− SERVICE SPECIFICATIONSSUPPLEMENTAL RESTRAINT SYSTEM
SS−75
249 Author: Date:
1996 TOYOTA T100 (RM449U)
SUPPLEMENTAL RESTRAINT SYSTEM
SERVICE DATA
FRONT AIRBAG SENSOR
S − ALess then 1 Ω
S − S1 MΩ or Higher
S − A755 − 885 Ω

Downloaded from www.Manualslib.com manuals search engine SS08D−01
SS−76
− SERVICE SPECIFICATIONSSUPPLEMENTAL RESTRAINT SYSTEM
1996 TOYOTA T100 (RM449U)
TORQUE SPECIFICATION
Part tightenedN·mkgf·cmft·lbf
Steering wheel3435025
Steering wheel pad8.89078 in.·lbf
Airbag sensor assembly2121015
Front airbag sensor2930022

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.