check engine TOYOTA T100 1996 Factory Service Manual

Downloaded from www.Manualslib.com manuals search engine SR085−01
R15509
Fulcrum
Length
SST
SR2922
Alignment Marks
− STEERINGPOWER STEERING GEAR (4WD)
SR−83
1996 TOYOTA T100 (RM449U)
INSTALLATION
1. INSTALL PS GEAR ASSEMBLY
Install the 3 bolts, washers and nuts.
Torque: 142 N·m (1,450 kgf·cm, 105 ft·lbf)
2. CONNECT INTERMEDIATE SHAFT ASSEMBLY
(See page SR−20)
3. CONNECT PRESSURE FEED TUBE AND RETURN
TUBE
Using SST, connect the tube.
SST 09631−22020
Torque: 36 N·m (365 kgf·cm, 26 ft·lbf)
HINT:
Use a torque wrench with a fulcrum length of 300 mm
(11.81 in.).
This torque value is effective in case that SST is parallel
to a torque wrench.
4. CONNECT PITMAN ARM SUB−ASSEMBLY WITH
RELAY ROD
(a) Align the alignment marks on the pitman arm and sector
shaft, and connect the pitman arm.
(b) Install the spring washer and pitman arm set nut.
Torque: 177 N·m (1,800 kgf·cm, 130 ft·lbf)
5. POSITION FRONT WHEELS FACING STRAIGHT
AHEAD
HINT:
Do it with the front of the vehicle jacked up.
6. CENTER SPIRAL CABLE
(See page SR−20)
7. INSTALL STEERING WHEEL
(a) Align the matchmarks on the wheel and steering column
main shaft.
(b) Temporarily tighten the wheel set nut.
(c) Connect the connector.
8. BLEED POWER STEERING SYSTEM
(See page SR−4)
9. CHECK STEERING WHEEL CENTER POINT
10. TORQUE STEERING WHEEL SET NUT
Torque: 35 N·m (360 kgf·cm, 26 ft·lbf)
11. INSTALL STEERING WHEEL PAD
(See page SR−20)
12. CHECK FRONT WHEEL ALIGNMENT
(See page SA−10)

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Alignment
Marks SR−88
− STEERINGSTEERING LINKAGE
1996 TOYOTA T100 (RM449U)
5. INSTALL PITMAN ARM
(a) Align the alignment marks on the pitman arm and the
cross shaft.
(b) Install the spring washer and pitman arm set nut.
Torque: 177 N·m (1,800 kgf·cm, 130 ft·lbf)
(c) Connect the pitman arm to the relay rod.
(d) Install the nut and a new cotter pin.
Torque: 90 N·m (920 kgf·cm, 67 ft·lbf)
6. INSTALL ENGINE UNDER COVER
Tighten the 4 bolts.
7. CHECK FRONT WHEEL ALIGNMENT
(See page SA−10)

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SR1279
SR1287
R04472
− STEERINGIDLER ARM
SR−91
1996 TOYOTA T100 (RM449U)
DISASSEMBLY
NOTICE:
When using a vise, do not overtighten it.
1. REMOVE IDLER ARM BRACKET CAP
Using a screwdriver and a hammer, remove the idler arm brack-
et cap.
NOTICE:
Be careful not to damage the idler arm bracket.
2. MEASURE IDLER ARM ROTATING TORQUE
(a) Check that the arm rotates smoothly without abnormal
noise.
(b) Using a torque wrench, check the arm rotating torque.
Rotating torque:
0.5 − 2.9 N·m (5 − 30 kgf·cm, 5 − 26 in.·lbf)
3. REMOVE IDLER ARM
Remove the nut and plate washer, and pull the idler arm off the
idler arm bracket.
4. REMOVE OIL SEAL
5. REMOVE 2 BUSHINGS
Using a screwdriver, remove the bushing.
NOTICE:
Be careful not to damage the idler arm bracket.

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− SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS−1
1768 Author: Date:
1996 TOYOTA T100 (RM449U)
SRS AIRBAG
PRECAUTION
NOTICE:
The TOYOTA T100 is equipped with SRS, which comprises a driver airbag. Failure to carry out
service operations in the correct sequence could cause the SRS to unexpectedly deploy during
servicing, possibly leading to a serious accident. Further, if a mistake is made in servicing the
SRS, it is possible that the SRS may fail to operate when required. Before performing servicing
(including removal or installation of parts, inspection or replacement), be sure to read the fol-
lowing items carefully, then follow the correct procedures described in the repair manual.
Malfunction symptoms of the SRS are difficult to confirm, so the DTCs become the most impor-
tant source of information when troubleshooting. When troubleshooting the SRS, always in-
spect the DTCs before disconnecting the battery.
Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, air-
bag sensor assembly and front airbag sensor should be inspected (See page RS−9, RS−23 and
RS−28).
Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.
Never disassemble and repair the steering wheel pad, airbag sensor assembly or front airbag
sensor in order to reuse it.
If the steering wheel pad, airbag sensor assembly or front airbag sensor has been dropped, or
if there are cracks, dents or other defects in the case, bracket or connector, replace them with
new ones.
Use a volt/ohmmeter with high impedance ( 10 kΩ/V minimum) for troubleshooting the system’s
electrical circuits.
Information labels are attached to the periphery of the SRS components. Follow the instruc-
tions on the notices.
After work on the SRS is completed, perform the SRS warning light check or SRS side airbag
warning light check (See page DI−365).
If the vehicle is equipped with a mobile communication system, refer to the precaution in the
IN section.
CAUTION:
Work must be started after 90 seconds from when the ignition switch is turned to the ”LOCK”
position and the negative (−) terminal cable is disconnected from the battery.
(The SRS is equipped with a back−up power source so that if work is started within 90 seconds
from disconnecting the negative (−) terminal cable of the battery, the SRS may be deployed.)
When the negative (−) terminal cable is disconnected from the battery, the memory of the clock
and audio system will be canceled. So before starting work, make a record of the contents mem-
orized in the audio memory system. When work is finished, reset the audio systems as they
were before and adjust the clock. To avoid erasing the memory in each memory system, never
use a back− up power supply from outside the vehicle.
Before repairs, remove the airbag sensor if shocks are likely to be applied to the sensor during
repairs.
Do not expose the steering wheel pad, airbag sensor assembly or front airbag sensor directly
to hot air or flames.

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H03005
Connector 1Connector 2
No.1 J/B
Connector 3
Spiral CableConnector 4
Squib
Rh and LH Front
Airbag Sensor
Connector 5 Center Airbag
Sensor Assembly
Z05953
Spacer
Housing
Female Male
− SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS−3
1996 TOYOTA T100 (RM449U)
5. FRONT AIRBAG SENSOR
The front airbag sensor is mounted inside each of the front
members. The sensor unit is a mechanical type. When the sen-
sor detects deceleration force above a predetermined limit,
contact is made in the sensor, sending a signal to the airbag
sensor assembly. The sensor cannot be disassembled.
6. SRS CONNECTORS
No.ItemApplication
(1)Terminal Twin−Lock MechanismConnectors 2, 3, 4
(2)Airbag Activation Prevention MechanismConnectors 1, 3, 4
(3)Electrical Connection Check MechanismConnectors 1, 5
(4)Connector Twin−Lock MechanismConnectors 3, 4
(a) All connectors in the SRS are colored yellow to distin-
guish them from other connectors. Connectors having
special functions and specifically designed for the SRS
are used in the locations shown above to ensure high reli-
ability. These connectors use durable gold−plated termi-
nals.
(1) Terminal Twin−Lock Mechanism
Each connector has a two−piece component con-
sisting of a housing and a spacer. This design se-
cures the locking of the terminal by two locking de-
vices (the retainer and the lance) to prevent
terminals from coming out.

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Connection
Detection
Pin
Resistor
Front Airbag Sensor
R10586
Connection Detection Pin
Terminal for Diagnosis
SlopeConnection Detection
Pin Contacting Terminal Half Connection
Complete Connection
Z05490
Secondary Lock
Ribs
Primary Lock
LockLock
Primary Lock Incomplete
(Secondary Lock Prevented)Primary Lock Complete
(Secondary Lock Permitted)Twin−Lock Completed
− SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS−5
1996 TOYOTA T100 (RM449U)
(3) Electrical Connection Check Mechanism
This mechanism electrically checks if connectors
are connected correctly and completely. The electri-
cal connection check mechanism is designed so
that the disconnection detection pin connects with
the diagnosis terminals when the connector hous-
ing lock is locked.
(4) Connector Twin−Lock Mechanism
With this mechanism connectors (male and female
connectors) are locked by 2 locking devices to in-
crease the connection reliability. If the primary lock
is incomplete, ribs interfere and prevent the sec-
ondary lock.

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R07746
R06972
R05736
Horn Button Contact Plate
− SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE
RS−9
1996 TOYOTA T100 (RM449U)
INSPECTION
1. VEHICLES NOT INVOLVED IN A COLLISION
(a) Do a diagnostic system check.
(See page DI−365)
(b) Do a visual check which includes the following items with
the steering wheel pad (with airbag) installed in the ve-
hicle.
Check for cuts, minute cracks or marked discoloration on
the steering wheel pad top surface and in the grooved
portion.
2. VEHICLE INVOLVED IN A COLLISION AND AIRBAG IS
NOT DEPLOYED
(a) Do a diagnostic system check.
(See page DI−365)
(b) Do a visual check which includes the following items with
the steering wheel pad (with airbag) removed from the ve-
hicle.
Check for cuts, minute cracks or marked discolor-
ation on the steering wheel pad top surface and in
the grooved portion.
Check for cuts and cracks in wire harness, and chip-
ping in connectors.
Check for the deformation of the horn button con-
tact plate of the steering wheel.
HINT:
If the horn button contact plate of the steering wheel is de-
formed, never repair it. Always replace the steering wheel
assembly with a new one.

Downloaded from www.Manualslib.com manuals search engine RS−10
− SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE
1996 TOYOTA T100 (RM449U)
There should be no interference between the steering
wheel pad and steering wheel, and the clearance should
be uniform all the way around when the new steering
wheel pad is installed on the steering wheel.
CAUTION:
For removal and installation of the steering wheel pad, see
the SR section and be sure to follow the correct procedure.
3. VEHICLE INVOLVED IN A COLLISION AND AIRBAG IS
DEPLOYED
(a) Do a diagnostic system check.
(See page DI−365)
(b) Do a visual check which includes the following items with
the steering wheel pad (with airbag) removed from the ve-
hicle.
Check for the deformation on the horn button con-
tact plate of the steering wheel.
Check for the damage to the spiral cable connector
and wire harness.
HINT:
If the horn button contact plate of the steering wheel is de-
formed, never repair it. Always replace the steering wheel
assembly with a new one.
There should be no interference between the steering
wheel pad and steering wheel, and the clearance should
be uniform all the way around when the new steering
wheel pad is installed on the steering wheel.

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Battery
SST
AB0152
SST
AB0158
Battery
SST
H01580
SST
RS−12
− SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE
1996 TOYOTA T100 (RM449U)
1. AIRBAG DEPLOYMENT WHEN SCRAPPING VE-
HICLE
HINT:
Have a battery ready as the power source to deploy the airbag.
(a) Check functioning of SST
CAUTION:
When deploying the airbag, always use the specified SST:
SRS Airbag Deployment Tool.
SST 09082−00700
(1) Connect the SST battery.
Connect the red clip of the SST to the battery posi-
tive (+) terminal and the black clip to the battery neg-
ative (−) terminal.
HINT:
Do not connect the yellow connector which will be connected
with the supplemental restraint system.
(2) Check functioning of SST.
Press the SST activation switch, and check that the
LED of the SST activation switch lights up.
CAUTION:
If the LED lights up when the activation switch is not being
pressed, SST malfunction is probable, so definitely do not
use the SST.
(b) Install the SST.
CAUTION:
Check that there is no looseness in the steering wheel and
steering wheel pad.
(1) Disconnect the airbag connector of the spiral cable.

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R13455
SSTBattery
− SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE
RS−13
1996 TOYOTA T100 (RM449U)
(2) Connect the SST connector to the airbag connector
of the spiral cable.
SST 09082−00700
(3) Move the SST at least 10 m (33 ft) away from the
front of the vehicle.
(4) Close all the doors and windows of the vehicle.
NOTICE:
Take care not to damage the SST wire harness.
(5) Connect the SST red clip to the battery positive (+)
terminal and the black clip to the negative (−) termi-
nal.
(c) Deploy the airbag.
(1) Check that no one is inside the vehicle or within 10
m (33 ft) area around the vehicle.
(2) Press the SST activation switch and deploy the air-
bag.
HINT:
The airbag deploys simultaneously as the LED of the SST ac-
tivation switch lights up.
(d) Dispose of steering wheel pad (with airbag).
CAUTION:
The steering wheel pad is very hot when the airbag is
deployed, so leave it alone for at least 30 minutes af-
ter deployment.
Use gloves and safety glasses when handling a steer-
ing wheel pad with deployed airbag.
Always wash your hands with water after completing
the operation.
Do not apply water, etc. to a steering wheel pad with
deployed airbag.
(1) When scrapping a vehicle, deploy the airbag and
scrap the vehicle with the steering wheel pad still
installed.
(2) When moving a vehicle for scrapping which has a
steering wheel pad with deployed airbag, use
gloves and safety glasses.