IN00U–34
N17080
Filler Cap
Float
Reservoir Tank
Grommet
Clip
Slotted Spring Pin
: Specified torque
Non–reusable partCylinder
Piston
Push Rod
Washer
Snap Ring
Boot
Gasket
Lock Nut
Clevis Pin
Clevis
N·m (kgf·cm, ft·lbf)
12 (120, 9)
15 (155, 11)
– INTRODUCTIONHOW TO USE THIS MANUAL
IN–1
HOW TO USE THIS MANUAL
GENERAL INFORMATION
1. INDEX
An INDEX is provided on the first page of each section to guide you to the item to be repaired. To assist you
in finding your way through the manual, the section title and major heading are given at the top of every page.
2. PRECAUTION
At the beginning of each section, a PRECAUTION is given that pertains to all repair operations contained
in that section.
Read these precautions before starting any repair task.
3. TROUBLESHOOTING
TROUBLESHOOTING tables are included for each system to help you diagnose the problem and find the
cause. The fundamentals of how to proceed with troubleshooting are described on page IN–19.
Be sure to read this before performing troubleshooting.
4. PREPARATION
Preparation lists the SST (Special Service Tools), recommended tools, equipment, lubricant and SSM (Spe-
cial Service Materials) which should be prepared before beginning the operation and explains the purpose
of each one.
5. REPAIR PROCEDURES
Most repair operations begin with an overview illustration. It identifies the components and shows how the
parts fit together.
Example:
IN06B–05
B02393
B A
B02403
4A–FE and 7A–FE engines 3S–FE engine 2C–T, 2C–TE and 1CD–FTV engines
– INTRODUCTIONIDENTIFICATION INFORMATION
IN–3
IDENTIFICATION INFORMATION
VEHICLE IDENTIFICATION AND
ENGINE SERIAL NUMBER
1. VEHICLE IDENTIFICATION NUMBER
The vehicle identification number is stamped in the engine
compartment. This number has also been stamped on the
manufacturer ’s label.
A: Vehicle Identification Number
B: Manufacturer’s Label
2. ENGINE SERIAL NUMBER
The engine serial number is stamped on the engine block, as
shown in the illustration.
FI1066
IN03Z–01
IN–4
– INTRODUCTIONREPAIR INSTRUCTIONS
REPAIR INSTRUCTIONS
GENERAL INFORMATION
BASIC REPAIR HINT
(a) Use fender, seat and floor covers to keep the vehicle
clean and prevent damage.
(b) During disassembly, keep parts in the appropriate order
to facilitate reassembly.
(c) Installation and removal of battery terminal:
(1) Before performing electrical work, disconnect the
negative (–) terminal cable from the battery.
(2) If it is necessary to disconnect the battery for in-
spection or repair, first disconnect the negative (–)
terminal.
(3) When disconnecting the terminal cable, to prevent
damage to the battery terminal, loosen the cable
nut and raise the cable straight up without twisting
or prying it.
(4) Clean the battery terminals and cable ends with a
clean shop rag. Do not scrape them with a file or oth-
er abrasive objects.
(5) Install the cable ends to the battery terminals after
loosening the nut and tighten the nut after installa-
tion. Do not use a hammer to tap the cable ends
onto the terminals.
(6) Be sure the cover for the positive (+) terminal is
properly in place.
(d) Check hose and wiring connectors to make sure that they
are connected securely and correctly.
(e) Non–reusable parts
(1) Always replace cotter pins, gaskets, O–rings and oil
seals, etc. with new ones.
(2) Non–reusable parts are indicated in the component
illustrations by the ”” symbol.
(f) Precoated parts
Precoated parts are bolts and nuts, etc. that are coated
with a seal lock adhesive at the factory.
(1) If a precoated part is retightened, loosened or
caused to move in any way, it must be recoated with
the specified adhesive.
(2) When reusing precoated parts, clean off the old
adhesive and dry with compressed air. Then apply
the specified seal lock adhesive to the bolt, nut or
threads.
(3) Precoated parts are indicated in the component il-
lustrations by the ”” symbol.
(g) When necessary, use a sealer on gaskets to prevent
leaks.
BE1367
Medium Current Fuse and High Current Fuse
Equal Amperage Rating
V00076
Abbreviation Part Name Symbol Illustration
FUSE
MEDIUM CURRENT FUSE
HIGH CURRENT FUSE
FUSIBLE LINK
CIRCUIT BREAKERFUSE
M–FUSE
H–FUSE
FL
CB
– INTRODUCTIONREPAIR INSTRUCTIONS
IN–5
(h) Carefully observe all specifications for bolt tightening
torques. Always use a torque wrench.
(i) Use of special service tools (SST) and special service ma-
terials (SSM) may be required, depending on the nature
of the repair. Be sure to use SST and SSM where speci-
fied and follow the proper work procedure. A list of SST
and SSM can be found in Preparation section in this
manual.
(j) When replacing fuses, be sure the new fuse has the cor-
rect amperage rating. DO NOT exceed the rating or use
one with a lower rating.
(k) Care must be taken when jacking up and supporting the
vehicle. Be sure to lift and support the vehicle at the prop-
er locations (See page IN–7).
(1) If the vehicle is to be jacked up only at the front or
rear end, make sure to place the stopper under the
wheels at the opposite end to block them in order to
ensure safety.
IN0EA–01
BO4111
Negative Cable
– INTRODUCTIONFOR ALL OF VEHICLES
IN–9
FOR ALL OF VEHICLES
PRECAUTION
1. FOR VEHICLES EQUIPPED WITH SRS AIRBAG AND
SEAT BELT PRETENSIONER
(a) The AVENSIS/ CORONA is equipped with an SRS (Sup-
plemental Restraint System), such as the driver airbag,
front passenger airbag, side airbags, curtain shield airbag
and seat belt pretensioners.
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 Pub. No. RM599E,
page DI–152).
(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.
– INTRODUCTIONFOR ALL OF VEHICLES
IN–15
(h) SEAT BELT PRETENSIONER
(1) Never measure the resistance of the seat belt pre-
tensioner. (This may cause the pretensioner oper-
ates, which is very dangerous.)
(2) Oil or water should not be put on the front seat outer
belt and the front seat outer belt should not be
cleaned with detergents of any kind.
(3) Store the front seat outer belt where the ambient
temperature remains below 80
C (176
F), without
high humidity and away from electrical noise.
(4) When using electric welding, first disconnect the
connector (yellow color and 2 pins) installed at the
center pillar lower garnish before starting work.
(5) When disposing of a vehicle or a front seat outer
belt alone, the seat belt pretensioner should be acti-
vated before disposal (See Pub. No. RM599E,
page BO–153). Perform the operation in a safe
place away from electrical noise.
(i) AIRBAG SENSOR ASSEMBLY
(1) Never reuse the airbag sensor assembly involved
in a collision when the SRS has deployed.
(2) The connectors to the airbag sensor assembly
should be connected or disconnected with the sen-
sor mounted on the floor. If the connectors are con-
nected or disconnected while the airbag sensor as-
sembly is not mounted to the floor, it could cause
undesired ignition of the supplemental restraint sys-
tem.
(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 loosing the set
bolts of the airbag sensor assembly.
(j) WIRE HARNESS AND CONNECTOR
The SRS wire harness is integrated with the instrument
panel wire harness and the cowl wire harness 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 becomes disconnected or
the connector becomes broken due to an accident, etc.,
repair or replace it as shown on Pub. No. RM599E, page
RS–65.
IN–26– INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS
5. PROBLEM SYMPTOMS TABLE
The suspected circuits or parts for each problem symptom are shown in the table below. Use this table to
troubleshoot the problem when a ”Normal” code is displayed in the diagnostic trouble code check but the
problem is still occurring. Numbers in the table indicate the inspection order in which the circuits or parts
should be checked.
HINT:
When the problem is not detected by the diagnostic system even though the problem symptom is present,
it is considered that the problem is occurring outside the detection range of the diagnostic system, or that
the problem is occurring in a system other than the diagnostic system.
Symptom
Suspect AreaSee page
With the ignition switch in the ACC or ON position, the SRS warning
light sometimes lights up after approx. 6 seconds have elapsed.
SRS warning light is always lit up even when ignition switch is in
the LOCK position
With the ignition switch in the ACC or ON position, the SRS warning
light does not light up.
PROBLEM SYMPTOMS TABLE
DTC is not displayed.
SRS warning light is always lit up at the time of DTC check
procedure.
DTC is displayed without Tc and E1 terminal connection.DI–294 DI–290
Problem Symptom
Proceed with troubleshooting of each circuit in the table below.
SRS warning light circuit
(Always lights up when ignition switch is in
LOCK position.)
SRS warning light circuit
(Dose not light up when ignition switch is turned to
ACC or ON.)
Tc terminal circuit
DI–288
Circuit Inspection, Inspection Order
Indicates the circuit which needs to be checked for each problem
symptom. Check in the order indicated by the numbers. Page
Indicates the page where the flow chart for each circuit
is located.
Circuit or Part Name
Indicates the circuit or part which needs to be checked.
B00972
ONTurn ignition switch ON. INSPECTION PROCEDURE
2 Check voltage at IG2 and ACC of airbag sensor assembly.
OK:
Voltage: Below 16V
Connector being checked is connected. Indicates the condition of the connector of ECU during the check.PREPARATION:
CHECK:
Check battery and charging system.
(See charging system section)
OKNG
Indicates the position of the ignition switch during the check.
Check from the connector back side.
(with harness)
Ignition Switch LOCK (OFF)
Ignition Switch START
LOCKIgnition Switch ON
Ignition Switch ACC
STARTON
ACC
Inspection Procedure
Use the inspection procedure to determine
if the circuit is normal or abnormal, and if it
is abnormal, use it to determine whether the
problem is located in the sensors, actuators,
wire harness or ECU.
Indicates the place to check the voltage or resistance.
Indicates the connector position to be checked, from the front or back side.
Connector being checked is disconnected. Check from the connector front side. (without harness)
In this case, care must be taken not to bend the terminals.
E6 Connector KNKWire Harness
E6 Connector KNK
Measure voltage between terminals IG2 and ACC of
airbag sensor assembly and body ground.
Airbag Sensor Assembly
(+)
(–)ACC IG2
IN–28
– INTRODUCTIONHOW TO TROUBLESHOOT ECU CONTROLLED
SYSTEMS