1996 TOYOTA TERCEL sensor

SR0KY-02
R11074
SST
SR4244
- STEERINGPOWER STEERING GEAR
SR-49
1996 TERCEL (RM440U)
REMOVAL
1. PLACE FRONT WHEELS FACING STRAIGHT AHEAD
2. w/ Airbag:
REMOVE STEERING WHEEL PAD (See page SR-13)
3. w/ Airbag:
REMOVE STEERING WHEEL (See page SR-13)
4. DISCONNECT RH AND LH TIE ROD ENDS (See page
SA-10)
5. REMOVE COLUMN HOLE COVER
Remove the 2 bolts and nut.
6. DISCONNECT SLIDING YOKE (See page SR-13)
7. REMOVE OXYGEN SENSOR
8. REMOVE FRONT EXHAUST PIPE
(a) Remove the 2 bolts, compression springs and gasket.
(b) Remove the bolt, clamp and gasket.
(c) Disconnect the 2 rings.
9. REMOVE ENGINE REAR MOUNT INSULATOR
Remove the 6 bolts.
10. REMOVE ENGINE REAR MOUNT BRACKET
Remove the 2 bolts.
11. DISCONNECT 2 VACUUM HOSES
12. M/T:
DISCONNECT CONTROL CABLES
(a) Remove the 2 clips and washers.
(b) Remove the 2 clips from the cables.
(c) Disconnect the 2 cables from the control lever housing
support bracket.
13. DISCONNECT PRESSURE FEED AND RETURN
TUBES
Using SST, disconnect the tube.
SST 09631-22020
14. DISCONNECT TUBE CLAMP
Remove the bolt.
15. REMOVE 2 BRACKETS AND GROMMETS
Remove the 2 bolts and nuts.
16. REMOVE PS GEAR ASSEMBLY
(a) Slide the gear assembly to the RH side of the vehicle.
(b) Slide the gear assembly to the LH side and pull it out.

- STEERINGPOWER STEERING GEAR
SR-63
1996 TERCEL (RM440U)
9. INSTALL FRONT EXHAUST PIPE
(a) Connect the 2 rings.
(b) Install the bolt and clamp over a new gasket.
Torque: 19 N´m (190 kgf´cm, 14 ft´lbf)
(c) Install the 2 bolts and compression springs over a new
gasket.
Torque: 62 N´m (630 kgf´cm, 46 ft´lbf)
10. INSTALL OXYGEN SENSOR
Install the sensor.
Torque: 44 N´m (450 kgf´cm, 32 ft´lbf)
11. CONNECT SLIDING YOKE (See page SR-20)
12. INSTALL COLUMN HOLE COVER
Torque the 2 bolts and nut.
Torque: 4.9 N´m (50 kgf´cm, 43 in.´lbf)
13. CONNECT RH AND LH TIE ROD ENDS
(See page SA-10)
14. PLACE FRONT WHEELS FACING STRAIGHT AHEAD
HINT:
Do it with the front of the vehicle jacked up.
15. w/ Airbag:
CENTER SPIRAL CABLE (See page SR-20)
16. w/ Airbag:
INSTALL STEERING WHEEL
(a) Install the wheel at straight-ahead position.
(b) Temporarily tighten the wheel set nut.
(c) Connect the connector.
17. BLEED POWER STEERING SYSTEM
(See page SR-5)
18. CHECK STEERING WHEEL CENTER POINT
19. w/ Airbag:
TORQUE STEERING WHEEL SET NUT
Torque: 34 N´m (350 kgf´cm, 25 ft´lbf)
20. w/ Airbag:
INSTALL STEERING WHEEL PAD (See page SR-20)
21. CHECK FRONT WHEEL ALIGNMENT
(See page SA-4)

RS02V-04
- SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS-1
984 Author
: Date
:
1996 TERCEL (RM440U)
SRS AIRBAG
PRECAUTION
NOTICE:

The TERCEL is equipped with an SRS, which comprises a driver airbag and front passenger
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 mis-
take is made in servicing the SRS, it is possible the SRS may fail to operate when required. Be-
fore performing servicing (including removal or installation of parts, inspection or replace-
ment), be sure to read the following items carefully, then follow the correct procedure 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 the SRS, always inspect the DTCs before dis-
connecting the battery.

Even in cases of a minor collision where the SRS does not deploy, the steering wheel pad, front
passenger airbag assembly and airbag sensor assembly should be inspected.
(See page RS-9, RS-22, RS-34)

Never use SRS parts from another vehicle. When replacing parts, replace them with new parts.

Never disassemble and repair the steering wheel pad, front passenger airbag assembly or air-
bag sensor assembly in order to reuse it.

If the steering wheel pad, front passenger airbag assembly or airbag sensor assembly 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 kW/V minimum) for troubleshooting the system's
electrical circuits.

Information labels are attached to the periphery of the SRS components. Follow the instruction
on the notices.

After work on the SRS is completed, check the SRS warning light. (See page DI-148)

If the vehicle is equipped with a mobile communication system, refer to the precaution in the
IN section.
CAUTION:

Work must be started 90 seconds after the ignition switch is turned to the ºLOCKº 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 of disconnecting the nega-
tive (-) 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 before
and adjust the clock. To avoid erasing the memory of 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, front passenger airbag assembly or airbag sensor as-
sembly directly to hot air or flames.

RS0Q8-02
N12248
R09725
Spiral Cable
H05490
N12151
RS-2
- SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
1996 TERCEL (RM440U)
OPERATION
1. STEERING WHEEL PAD (with AIRBAG)
The inflater and bag of the SRS are stored in the steering wheel
pad and cannot be disassembled. The inflater contains a squib,
igniter charge, gas generant, etc., and inflates the bag when
instructed by the airbag sensor assembly.
2. SPIRAL CABLE (in COMBINATION SWITCH)
A spiral cable is used as an electrical joint from the vehicle body
side to the steering wheel.
3. FRONT PASSENGER AIRBAG ASSEMBLY
The inflater and bag of the SRS are stored in the front passen-
ger airbag assembly and cannot be disassembled. The inflater
contains a squib, igniter charge and gas generant, etc., and in-
flates the bag when instructed by the airbag sensor assembly.
4. SRS WARNING LIGHT
The SRS warning light is located on the cluster finish panel. It
goes on to alert the driver of trouble in the system when a mal-
function is detected in the airbag sensor assembly. In normal
operating conditions when the ignition switch is turned to the
ACC or ON position, the light goes on for about 6 seconds and
then goes off.
5. AIRBAG SENSOR ASSEMBLY
The airbag sensor assembly is mounted on the floor inside the
console box. The airbag sensor assembly consists of airbag
sensor, safing sensor, diagnosis circuit, ignition control and
drive circuit, etc. It receives signals from the airbag sensor and
judges whether the SRS must be activated or not.

Z14034
Fig.1
Power Source
Safing
Sensor
Squibs
Deceleration
Sensor Fig.2 RS-6
- SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
1996 TERCEL (RM440U)
(b) When the vehicle is involved in a frontal collision in the
hatched area (Fig. 1) and the shock is larger than the pre-
determined level, the SRS is activated automatically. A
safing sensor is designed to go on at a smaller decelera-
tion rate than the airbag sensors. As illustrated in Fig. 2,
ignition is caused when a safing sensor and the decelera-
tion sensor go on simultaneously. When a deceleration
force acts on the sensors, two squibs in the driver airbag
and front passenger airbag ignite and generate gas. The
gas discharging into the driver and front passenger air-
bags rapidly increases the pressure inside the bags
breaking open the steering wheel pad and instrument
panel door. Bag inflation then ends, and the bags deflate
as the gas is discharged through discharge holes at the
bag's rear or side.

RS039-12
RS-32
- SUPPLEMENTAL RESTRAINT SYSTEMAIRBAG SENSOR ASSEMBLY
1015 Author
: Date
:
1996 TERCEL (RM440U)
AIRBAG SENSOR ASSEMBLY
COMPONENTS

RS03A-15
- SUPPLEMENTAL RESTRAINT SYSTEMAIRBAG SENSOR ASSEMBLY
RS-33
1996 TERCEL (RM440U)
REMOVAL
NOTICE:
Do not open the cover or the case of the ECU and various
computers unless absolutely necessary.
If the IC terminals are touched, the IC may be destroyed by stat-
ic electricity.
1. REMOVE THESE PARTS:
2. REMOVE CONSOLE BOX
3. REMOVE CENTER CLUSTER FINISH PANEL
4. REMOVE LOWER CENTER FINISH PANEL
5. REMOVE REAR AIR DUCT NO.3
6. REMOVE AIRBAG SENSOR ASSEMBLY
(a) Disconnect the connectors.
NOTICE:
Remove of the connector is done with the sensor assembly
installed.
(b) Using a torx wrench remove the 3 screws and the airbag
sensor assembly.
Torx wrench: T40 (Part No. 09042- 00020 or locally
manufactured tool)

RS08W-02
RS-34
- SUPPLEMENTAL RESTRAINT SYSTEMAIRBAG SENSOR ASSEMBLY
1996 TERCEL (RM440U)
INSPECTION
1. VEHICLES NOT INVOLVED IN COLLISION
Do a diagnostic system check. (See page DI-148)
2. VEHICLES INVOLVED IN COLLISION AND SRS IS NOT DEPLOYED
Do a diagnostic system check. (See page DI-148)
3. VEHICLES INVOLVED IN COLLISION AND SRS IS DEPLOYED
Replace the airbag sensor assembly.