cooling HONDA S2000 2003 1.G Owner's Manual

If the temperature gauge stays at
the red mark, turn of f the engine. If you do not see steam or spray,
leave the engine running and
watch the temperature gauge. If
the high heat is due to overloading
(climbing a long, steep hill on a
hot day with the A/C running, for
example), the engine should start
to cool down almost immediately.
If it does, wait until the tempera-
ture gauge comes down to the mid-
point then continue driving.
Your car can overheat f or several
reasons, such as lack of coolant or a
mechanical problem. The only
indication may be the temperature
gauge climbing to or above the red
mark. Or you may see steam or
spray coming f rom under the car or
engine cover. In either case, you
should take immediate action. The reading on your car’s
temperature gauge should stay in
the midrange under most conditions.
Itmaygohigherif youaredrivingup
a long steep hill on a very hot day. If
it climbs to the red mark, you should
determine the reason. Saf ely pull to the side of the road.
Put the transmission in Neutral
and set the parking brake. Turn
of f the heating and cooling system
andallotheraccessories.Turnon
the hazard warning indicators.
If you see steam and/or spray
coming f rom under the hood, turn
of f the engine.Wait until you see no more signs
of steam or spray, then open the
hood.
1. 3.
4.
5.
2.
CONT INUED
If Your Engine Overheats
T aking Care of t he Unexpect ed229
Steam and spray from an
overheated engine can
seriously scald you.
Do not open the hood if steam
is coming out.
Driving with the temperature gauge
reading at the red mark can cause
serious damage to your engine.

Look f or any obvious coolant leaks,
such as a split radiator hose.
Everything is still extremely hot,
so use caution. If you f ind a leak, it
must be repaired bef ore you
continue driving (seeon page ). If you don’t f ind an obvious leak,
check the coolant level in the
radiator reserve tank (see page
). If the level is below the
MIN mark, add coolant to halfway
between the MIN and MAX marks. Using gloves or a large heavy
cloth, turn the radiator cap
counterclockwise, without pushing
down, to the f irst stop. This
releases any remaining pressure in
the cooling system. After the
pressure releases, push down on
the cap and turn it until it comes
of f .
If there was no coolant in the
reserve tank, you may also have to
add coolant to the radiator. Let the
engine cool down until the reading
reaches the middle of the
temperature gauge, or lower,
bef ore checking the radiator.
6.
7.9.
8.
245 124
Emergency
Towing
If Your Engine Overheats
T aking Care of t he Unexpect ed230
Removing the radiator cap
while the engine is hot can
cause the coolant to spray out,
seriously scalding you.
Always let the engine and
radiator cool down before
removing the radiator cap.

Start the engine and set the
temperature control dial to
maximum. Add coolant to the
radiator up to the base of the f iller
neck. If you do not have the
proper coolant mixture available,
you can add plain water.
Remember to have the cooling
system drained and ref illed with
the proper mixture as soon as you
can.Put the radiator cap back on
tightly. Run the engine and watch
the temperature gauge. If it goes
back to the red mark, the engine
needs repair. (See
on page .) If the temperature stays normal,
check the coolant level in the
radiator reserve tank. If it has
gone down, add coolant to the
MAX mark. Put the cap back on
tightly.
10.
12.
11.
245Emergency
Towing
If Your Engine Overheats
T aking Care of t he Unexpect ed231

µ
µ
µ
µ
µ
Î
Î
No. Amps.
Amps.
No. Circuits Protected
CONT INUED
Circuits Protected
14
15
16
17
18
19
20
21
22
23
24
25
26
2710 A
10 A
7.5 A
7.5 A 10 A
15 A
7.5 A
7.5 A
7.5 A 20 A
20 A
7.5 A
15 A
10 A
20 A
7.5 A 15 A
7.5 A
15 A
7.5 A 15 A
10 A
1
2
3
4
5
6
7
8
9
10
11
12
13 Daytime Running Lights
Keyless Entry
Back-up
Interior Light
Small Lights
Radio
Starter Signal
Heater Control,
Cooling Fan Relay
Power Mirrors
Right Power Window
Lef t Power Window
Not used
Not used
Not used
Windshield Wiper,
Auto Stop Signal
Washer Motor
Not used
Not used
Accessory Socket
Windshield Wiper
Turn signal Light
ACG
Instrument Light, Back-up
Lights
Ignition Coil
Engine Start
Fuel Pump, SRS
SRS
: Canadian Model
Fuses
T aking Care of t he Unexpect ed241
I IN NT TE
ER
RI IOOR R F
FUUS SEE B
BOOX X

µ
µ
µ
µ
µ
µ
µ
µ
µµ
µ
No. Amps.
No.
No.
Circuits Protected
Circuits Protected
Circuits Protected
Amps. Amps.
1
2
3
4
5
6
7
8
9
10
11
12
13 40 A
20 A
30 A
20 A
40 A
20 A
1
2
3
4
5 14
15
16
17
18
19
20
21
22
23
24
25
Magnetic Clutch Relay
Right Headlight
ACG S
Hazard Warning Lights
Cooling Fan
Not used
Stop
Lef t Headlight
ABS F/S
ABS Motor
Battery
IG1 Main
Lighting 1 Relay
Lighting 2 Relay
Horn Relay
Power Window Motor
Right Roof Motor
Not used
Back Up ACC
Lef t Roof Motor
Heater Motor
Condenser Fan
Not used
Condenser Fan Relay
Cooling Fan Relay
Rear Window Defogger
Not used
Not used
EPS
Air Pump
20 A
70 A
60 A 20 A
15 A
10 A
20 A
15 A
20 A
20 A
30 A
100 A 40 A
Fuses
T aking Care of t he Unexpect ed242
(AUXILIARY FUSE BOX)
UNDER-HOOD FUSE BOXES
(MAIN FUSE BOX)

..................................................
Keys .58
.............................................
Gauges .49
...
Engine Coolant Temperature . 49
...............................................
Fuel .50
...............................
Speedometer .49
.................................
Tachometer .49
Gearshif t Lever Positions 6-speed Manual .........................
Transmission .137
..............................
Glass Cleaning .213
.............
Halogen Headlight Bulbs . 198
..............
Hazard Warning Flashers . 80
Headlights ............
Daytime Running Lights . 54
..................
High Beam Indicator . 48
...........................
Reminder Tone .53
........
Replacing Halogen Bulbs . 198
...................................
Turning on .53
.........
Heating and Cooling System . 86
.............
High Altitude, Starting at . 136
.................
High-Low Beam Switch . 53
................
High Speed, Shif ting at . 138
....................................
Hood Latch .178
.......................
Hood, Opening the .122 ...........................
Hydraulic Clutch .175
.................................
Hydroplaning .145
.......................
Jacking Up the Car .220
.......................................
Jack, Tire .219 ................................
Jump Starting .226
Identif ication Number, .......................................
Vehicle .248
Ignition ..............................................
Keys .58
...........................................
Switch .60
............
Timing Control System . 258
Indicator Lights, Instrument .............................................
Panel .45
...................
Inf lation, Proper Tire . 189
...................................
Inside Mirror .80
.............................
Inspection, Tire .191
............................
Instrument Panel .44
........
Instrument Panel Brightness . 54
...........................
Interior Cleaning .211
.................................
Interior Lights .83
........................................
Introduction .i .......................
Label, Certif ication .248
.................
Lane Change, Signaling . 55
........................
Lap/Shoulder Belts .33
.........................
Leather, Cleaning .212
Lights ....................
Bulb Replacement .198
.......................................
Indicator .45
..................................
Turn Signal .55
.....................................
Load Limit .129
...............................
Loading Cargo .128
......
LOCK (Ignition Key Position) . 60
Locks .......
Anti-thef t Steering Column . 60
............................
Fuel Fill Door .121
.................................
Power Door .62
...........................................
Trunk .66
........................
Low Coolant Level .124
...
Lower Gear, Downshif ting to a . 138
Index
H I
JK
L
IV