Page 171 of 1202
- SERVICE SPECIFICATIONSBODY ELECTRICAL
SS-41
171 Author: Date:
1996 TERCEL (RM440U) FUEL RECEIVER GAUGE
w/ Tachometer:Resistance (W)
A - BApprox. 115.8
A - CApprox. 177.2
B - CApprox. 61.4
w/o Tachometer:Resistance (W)
A - BApprox. 171.2
A - CApprox. 272.8
B - CApprox. 101.6
FUEL SENDER GAUGE
Float position: mm (in.)Resistance (W)
F: Approx. 13.0 ± 3 (0.512 ± 0.118)Approx. 3 ± 1.0
1/2: Approx. 61.0 (2.402)Approx. 29 ± 4.8
E: Approx. 124.0 ± 3 (4.882 ± 0.118)Approx. 110 ± 7.7
ENGINE COOLANT TEMPERATURE RECEIVER GAUGE
w/ Tachometer:Resistance (W)
A - BApprox. 51.0
A - CApprox. 148.6
B - CApprox. 199.6
w/o Tachometer:Resistance (W)
A - BApprox. 54.0
A - CApprox. 175.7
B - CApprox. 229.7
DEFOGGER SWITCH
Timer Circuit:
2 - Ground (Ignition switch LOCK or ACC)No voltage
2 - Ground (Ignition switch ON)Battery positive voltage
6 - Ground (Ignition switch LOCK or ACC)No voltage
6 - Ground (Ignition switch ON)Battery positive voltage
Page 328 of 1202
DI95O-01
H09395h-10-2-D
- DIAGNOSTICSSUPPLEMENTAL RESTRAINT SYSTEM
DI-153
1996 TERCEL (RM440U)
TERMINALS OF ECM
No.SymbolTerminal Name
A-Electrical Connection Check Mechanism
B-Electrical Connection Check Mechanism
1P-Squib (Passenger)
2P+Squib (Passenger)
3D-Squib (Driver)
4D+Squib (Driver)
5E1Ground
6E2Ground
7TcDiagnosis
8LASRS Warning Light
9IG2Power Source (IGN Fuse)
10ACCPower Source (CIG Fuse)
Page 526 of 1202

SF1PQ-02
- MFIMFI SYSTEM
MF-1
525 Author: Date:
1996 TERCEL (RM440U)
MFI SYSTEM
PRECAUTION
1. BEFORE WORKING ON FUEL SYSTEM, DISCON-
NECT NEGATIVE (-) TERMINAL CABLE FROM BAT-
TERY
HINT:
Any diagnostic trouble code retained by the computer will be
erased when the negative (-) terminal cable is disconnected.
Therefore, if necessary, read the diagnosis before disconnect-
ing the negative (-) terminal cable from the battery.
2. DO NOT SMOKE OR WORK NEAR AN OPEN FLAME
WHEN WORKING ON THE FUEL SYSTEM
3. KEEP GASOLINE AWAY FROM RUBBER OR LEATH-
ER PARTS
4. MAINTENANCE PRECAUTIONS
(a) In event of engine misfire, the following precautions
should be taken.
(1) Check proper connection to battery terminals, etc.
(2) Handle higt-tension cords carefully.
(3) After repair work, check that the ignition coil termi-
nals and all other ignition system lines are recon-
nected securely.
(4) When cleaning the engine compartment, be espe-
cially careful to protect the electrical system from
water.
(b) Precautions when handling the oxygen sensor.
(1) Do not allow the oxygen sensor to drop or hit
against an object.
(2) Do not allow the sensor to come into contact with
water.
5. IF VEHICLE IS EQUIPPED WITH MOBILE RADIO SYS-
TEM (HAM, CB, ETC.)
If the vehicle is equipped with a mobile communication system,
refer to the precaution in the IN section.
6. AIR INDUCTION SYSTEM
(a) Separation of the engine oil dipstick, oil filler cap, PCV
hose, etc. may cause the engine out of tune.
(b) Disconnection, looseness or cracks in the parts of the air
induction system between the throttle body and cylinder
head will cause air suction and cause the engine out of
tune.
7. ELECTRONIC CONTROL SYSTEM
(a) Before removing MFI wiring connectors, terminals, etc.,
first disconnect the power by either turning the ignition
switch to LOCK or disconnecting the negative (-) terminal
cable from the battery.
Page 963 of 1202

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.
Page 964 of 1202

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.
Page 965 of 1202
Z05953
Spacer
Housing
Female
Male
- SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS-3
1996 TERCEL (RM440U)
6. SRS CONNECTORS
No.ItemApplication
(1)Terminal Twin-Lock MechanismConnectors 1, 2, 3, 4, 5, 6, 7
(2)Airbag Activation Prevention MechanismConnectors 2, 3, 4
(3)Electrical Connection Check MechanismConnectors 1
(4)Connector Twin-Lock MechanismConnectors 2, 3, 4
(a) All connectors in the SRS are colored in yellow to distin-
guish them from other connectors. Connectors having
special functions and specifically designed for SRS are
used in the locations shown above to ensure high reliabil-
ity. These connectors use durable gold-plated terminals.
(1) Terminal Twin-Lock Mechanism
Each connector has a two-piece construction con-
sisting of a housing and a spacer. This secures the
locking of the terminal by two locking devices (the
spacer and the lance) to prevent terminals from
coming out.
Page 967 of 1202
R13061
Terminal for
Diagnosis
Disconnection Detection PinTerminal for
Diagnosis Half Connection Complete Connection
Z05490
Secondary Lock
Primary Lock Lock
Lock
Primary Lock Incomplete
(Secondary Lock Prevented)Primary Lock Complete
(Secondary Lock Permitted)Twin-Lock Completed
- SUPPLEMENTAL RESTRAINT SYSTEMSRS AIRBAG
RS-5
1996 TERCEL (RM440U)
(3) Electrical Connection Check Mechanism
This mechanism is designed to electrically check if
connectors are connected correctly and complete-
ly. The electrical connection check mechanism is
designed so that the connection detection pin con-
nects with the diagnosis terminals when the con-
nector housing lock is in the locked condition.
(4) Connector Twin-Lock Mechanism
With this mechanism connectors (male and female
connectors) are locked by two locking devices to in-
crease connection reliability.
If the primary lock is incomplete, ribs interfere and prevent the
secondary lock.
Page 973 of 1202

RS0QC-02
AB0152
SST
- SUPPLEMENTAL RESTRAINT SYSTEMSTEERING WHEEL PAD AND SPIRAL CABLE
RS-1 1
1996 TERCEL (RM440U)
DISPOSAL
HINT:
When scrapping vehicle equipped with an SRS or disposing of
a steering wheel pad, always first deploy the airbag in accor-
dance with the procedure described below. If any abnormality
occurs with the airbag deployment, contact the SERVICE
DEPT. of TOYOTA MOTOR SALES, U.S.A., INC.
When disposing of a steering wheel pad with an airbag
deployed in a collision, follow the same procedure given in step
1-(d) in ºDISPOSALº.
CAUTION:
Never dispose of a steering wheel pad which has an
undeployed airbag.
The airbag produces a sizeable exploding sound
when it deploys, so perform the operation out-of-
doors and where it will not create a nuisance to
nearby residents.
When deploying the airbag, always use the specified
SST (SRS Airbag Deployment Tool). Carry out opera-
tion in a place away from electrical noise.
SST 09082-00700
When deploying an airbag, do it at least 10 m (33 ft)
away from the steering wheel pad.
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 a deployed airbag.
Do not apply water, etc. to a steering wheel pad with
a deployed airbag.
Always wash your hands with water after completing
the operation.