2003 TOYOTA COROLLA engine

’03 Corolla U (L/O 0201)
2382003 MY COROLLA_U (OM12744U)
Instrument panel
Fuses (type A)1. FOG 15 A: Front fog lights
2. HEAD LH UPR 10 A: Lefthand head-
light (high beam)
3. HEAD RH UPR 10 A: Righthand
headlight (high beam), high beam indi-
cator light
4. SPARE 30 A: Spare fuse
5. SPARE 15 A: Spare fuse
6. SPARE 10 A: Spare fuse
7. MAIN 30 A: Starting system, “AM2”
fuse 8. DOME 15 A:
Car audio system, clock,
personal lights, interior light, trunk light,
open door warning light, wireless re-
mote control system
9. HORN 10 A: Horn
10. HAZARD 10 A: Emergency flashers ,
turn signal lights
11. EFI 15 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, emission control system
12. ALTS 5 A: Charging system
13. HEAD LH LWR 10 A: Lefthand head-
light (low beam)
14. HEAD RH LWR 10 A: Righthand
headlight (low beam)
15. TAIL 15 A: Tail lights, license plate
lights, instrument panel lights , instru-
ment cluster lights
16. OBD 7.5 A: Onboard diagnosis sys-
tem
17. WIPER 25 A: Windshield wipers
18. AM2 15 A: Charging system, multiport
fuel injection system/sequential multi-
port fuel injection system, starting sys-
tem, SRS airbag system 19. STOP 15 A:
Stop lights, high mounted
stoplight, antilock brake system, shift
lock control system, engine control sys-
tem, cruise control system
20. DOOR 25 A: Power door lock system
21. AM1 25 A: “CIG” fuse
22. ECUIG 10 A: Electric cooling fan,
antilock brake system, shift lock con-
trol system, cruise control system
23. RR WIPER 15 A: No circuit
24. A/C 10 A: Air conditioning system
25. INV 15 A: No circuit
26. P/POINT 15 A: Power outlet (in the
rear console box)
27. ECUB 10 A: Daytime running light
system
28. CIG 15 A: Power outlet (on the instru-
ment panel) or cigarette lighter, car au-
dio system, clock, power rear view mir-
ror control, shift lock control system
29. GAUGE 10 A: Gauges and meters, air
conditioning system, daytime running
light system, charging system, auto
antiglare inside rear view mirror, pow-
er windows, cruise control system, rear
window defogger, backup lights, front
passenger ’s seat belt reminder light

’03 Corolla U (L/O 0201)
2392003 MY COROLLA_U (OM12744U)
30. WASHER 15 A: Windshield washer
31. MHTR/DEF IUP 10 A: Engine control
system
Fuses (type B)
32. ABS NO.1 30 A: Antilock brake sys-
tem
33. RDI FAN 30 A: Electric cooling fan
34. ABS NO.2 40 A: Antilock brake sys-
tem
35. HEAD MAIN 40 A: “HEAD LH UPR”,
“HEAD RH UPR”, “HEAD LH LWR” and
“HEAD RH LWR” fuses
36. HTR 40 A: Air conditioning system
37. DEF 40 A: Rear window defogger,
“MHTR/DEF IUP” fuse
38. POWER 30 A: Power windows, electric
moon roof
Fuses (type C)
39. ALT 100 A: Charging system, “ABS
NO.1”, “ABS NO.2”, “RDI FAN”, “FOG”,
“HTR”, “AM1”, “POWER”, “DOOR”,
“ECUB”, “TAIL”, “STOP”, “P/POINT”,
“INV” and “OBD” fuses

’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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. .
 If your engine stalls while driving 173 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 If your vehicle overheats 173 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . .
 If you have a flat tire 174 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . .
 If your vehicle needs to be towed 182 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 Tips for driving during breakin period 144 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 How to start the engine 158 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
 General maintenance 197 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . .
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.