2003 TOYOTA COROLLA service

’03 Corolla U (L/O 0201)
2332003 MY COROLLA_U (OM12744U)
SPECIFICATIONS
Dimensions and weight234
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Engine 234
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Fuel 234
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Service specifications 235
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Tires 237
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Fuses 237
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SECTION 8

’03 Corolla U (L/O 0201)
2352003 MY COROLLA_U (OM12744U)
ENGINE
Valve clearance (engine cold), mm (in.):Intake 0.15—0.25 (0.006—0.010)
Exhaust 0.25—0.35 (0.010—0.014)
Spark plug type: DENSO SK16R11
NGK IFR5A11
Spark plug gap, mm(in.): 1.1 (0.043) ENGINE LUBRICATION
Oil capacity (drain and ref
ill),
L (qt., Imp. qt.):
With filter 3.7 (3.9, 3.3)
Without filter 3.5 (3.7, 3.1)
Oil grade: API grade SL “EnergyConserving” or
ILSAC multigrade engine oil is recom-
mended.
Recommended oil viscosity: SAE 5W30
Outside temperature
COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):6.5 (6.9, 5.7)
Coolant type: “TOYOTA Long Life Coolant” or equiva-
lent
With ethyleneglycol type coolant for a
proper corrosion protection of aluminum
components
Do not use alcohol type antifreeze or
plain water alone.
BATTERY
Open voltage
∗ at 20 C (68 F):
12.6—12.8 V Fully charged
12.2—12.4 V Half charged
11.8—12.0 V Discharged
∗: Voltage that is checked 20 minutes af-
ter the key is removed with all the
lights turned off.
Charging rates: 5 A max.
CLUTCH
Pedal free play, mm (in.): 5—15 (0.2—0.6)
Fluid type: SAE J1703 or FMVSS No.116 DOT 3
Service specifications

’03 Corolla U (L/O 0201)
2432003 MY COROLLA_U (OM12744U)
Treadwear—The treadwear grade is a
comparative rating based on the wear rate
of the tire when tested under controlled
conditions on a specified government test
course. For example, a tire graded 150
would wear one and a half (11/2) times
as well on the government course as a
tire graded 100. The relative performance
of tires depends upon the actual condi-
tions of their use, however, and may de-
part significantly from the norm due to
variations in driving habits, service prac-
tices and differences in road characteris-
tics and climate.
Traction AA, A, B, C— The traction
grades, from highest to lowest, are AA, A,
B, and C, and they represent the tire’s
ability to stop on wet pavement as mea-
sured under controlled conditions on spe-
cified government test surfaces of asphalt
and concrete. A tire marked C may have
poor traction performance.
Warning: The traction grade assigned to
this tire is based on braking (straight
ahead) traction tests and does not include
cornering (turning) traction. Temperature A, B, C—
The temperature
grades are A (the highest), B, and C,
representing the tire’s resistance to the
generation of heat and its ability to dissi-
pate heat when tested under controlled
conditions on a specified indoor laboratory
test wheel. Sustained high temperature
can cause the material of the tire to de-
generate and reduce tire life, and exces-
sive temperature can lead to sudden tire
failure. The grade C corresponds to a lev-
el of performance which all passenger car
tires must meet under the Federal Motor
Vehicle Safety Standard No.109. Grades B
and A represent higher levels of perfor-
mance on the laboratory test wheel than
the minimum required by law.
Warning: The temperature grades for this
tire are established for a tire that is prop-
erly inflated and not overloaded. Exces-
sive speed, underinflation, or excessive
loading, either separately or in combina-
tion, can cause heat buildup and possible
tire failure.

’03 Corolla U (L/O 0201)
2003 MY COROLLA_U (OM12744U)
Publication No. OM12744U
Part No. 01999-12744
Printed in Japan 01020100
(U)
Quick index
If a service reminder indicator or warning buzzer comes on 85 . . . . . . . . .
 If your vehicle will not start 170 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
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 If your engine stalls while driving 173 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 If your vehicle overheats 173 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
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 If you have a flat tire 174 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
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 If your vehicle needs to be towed 182 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 Tips for driving during breakin period 144 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 How to start the engine 158 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
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 General maintenance 197 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
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Gas station information
Fuel type:
UNLEADED gasoline, Octane Rating 87 (Research Octane Number 91)
or higher
See page 144 for detailed information.
Fuel tank capacity:
50 L (13.2 gal., 11.0 lmp. gal.)
Engine oil:
API grade SL “EnergyConserving” or ILSAC multigrade engine oil is
recommended.
See page 210 for detailed information.
Automatic transmission fluid: Automatic transmission fluid Type TIV
See page 236 for detailed information.
Tire information: See pages 214 through 219.
Tire pressure: See page 237.
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’03 Corolla U (L/O 0201)
2003 MY COROLLA_U (OM12744U)
Where to obtain the Repair Manual
The repair manual for COROLLA, written in
English, may be purchased as applicable from
any Toyota dealer.
Pub. Name: 2003 COROLLA Repair Manual
Pub. No.: RM938U1 (Maintenance, Preparation, Service specifications and Diagnostics)
RM938U2 (Engine, Chassis and
Body)
Maintenance procedures for the engine,
chassis, body, electrical system, and more,
are clearly explained and illustrated.
Periodic maintenance and tuneup
Periodic maintenance and tuneup helps to pre-
vent small problems from growing into larger ones lat-
er on. The repair manual outlines exactly what main-
tenance is required and clearly explains how to do the
work yourself stepbystep.
Areas covered include such things as spark plug re-
placement, valve clearance adjustment and engine oil
and filter replacement.