2004 HONDA S2000 Owners Manual

Saf ely pull of f the road, and shut
of f the engine. Turn on the hazard
warning indicators.
Let the vehicle sit f or a minute.
Open the hood, and check the oil
level (see page ). An engine
very low on oil can lose pressure
during cornering and other driving
maneuvers.
If necessary, add oil to bring the
level back to the full mark on the
dipstick (see page ).
Start the engine, and watch the oil
pressure indicator. If it does not go
out within 10 seconds, turn of f the
engine. There is a mechanical
problem that needs to be repaired
bef ore you can continue driving
(seeon page
). If the charging system
indicator comes on brightly
when the engine is running, the
battery is not being charged.
Immediately turn of f all electrical
accessories. Try not to use other
electrically operated controls such as
the power windows. Keep the engine
running; starting the engine will
discharge the battery rapidly.
Go to a service station or garage
where you can get technical
assistance.
This indicator should never
come on when the engine is
running. If it starts f lashing or stays
on, the oil pressure has dropped very
low or lost pressure. Serious engine
damage is possible and you should
take immediate action. 1.
2.
3.
4.103
129
176
L ow Oil Pressure Indicator, Charging System Indicator
T aking Care of t he Unexpect ed
L ow Oil Pressure Indicator
Emergency T owingCharging System Indicator
166
NOTICE:
Running the engine with low
oil pressure can cause serious
mechanical damage almost immediately.
Turn of f the engine as soon as you can
saf ely get the vehicle stopped.

If you have recently ref ueled your
vehicle, the indicator coming on
could be a loose or missing f uel f ill
cap. Tighten the cap until it clicks at
least three times. Tightening the cap
will not turn the indicator of f
immediately; it takes at least three
days of normal driving.Your vehicle has certain ‘‘readiness
codes’’ that are part of the on-board
diagnostics f or the emissions
systems. In some states, part of the
emissions testing is to make sure
these codes are set. If they are not
set, the test cannot be completed.If your vehicle battery has been
disconnected or gone dead, these
codes are erased. It takes at least
three days of driving under various
conditions to set the codes again.
To check if they are set, turn the
ignition to ON (II), without starting
the engine. The Malf unction
Indicator Lamp will come on f or 20
seconds. If it then goes of f , the
readiness codes are set. If it blinks 5
times, the readiness codes are not
set. If possible, do not take your
vehicle f or a state emissions test
until the readiness codes are set.
Refer to State Emissions Testing for
more inf ormation, on page .
If this indicator comes on
while driving, it means one
of the engine’s emission control
systems may have a problem. Even
though you may f eel no dif f erence in
your vehicle’s perf ormance, it can
reduce your f uel economy and cause
increased emissions. Continued
operation may cause serious damage. If the indicator comes on repeatedly,
even though it may go of f as you
continue driving, have your vehicle
checked by a dealer as soon as
possible.
188
T aking Care of t he Unexpect ed
Malf unction Indicator L amp
Readiness Code
167
NOTICE:If you keep driving with the
Malf unction Indicator Lamp on, you
can damage your vehicle’s emissions
controls and the engine. Those repairs
may not be covered by your vehicle’s
warranties.

If the brake system indicator comes
on while driving, the brake f luid level
is probably low. Press lightly on the
brake pedal to see if it f eels normal.
If it does, check the brake f luid level
thenexttimeyoustopataservice
station (see page ).
If the f luid level is low, take your
vehicle to a dealer and have the
brake system inspected f or leaks or
worn brake pads.However, if the brake pedal does not
f eel normal, you should take
immediate action. A problem in one
part of the system’s dual circuit
design will still give you braking at
two wheels. You will f eel the brake
pedal go down much f arther bef ore
the vehicle begins to slow down, and
you will have to press harder on the
pedal.
Slow down by shif ting to a lower
gear, and pull to the side of the road
when it is saf e. Because of the long
distance needed to stop, it is
hazardous to drive the vehicle. You
should have it towed and repaired as
soon as possible (see
on page ).
If you must drive the vehicle a short
distance in this condition, drive
slowly and caref ully.
The brake system indicator
normally comes on when
you turn the ignition switch
to ON (II), and as a
reminder to check the
parking brake. It will stay
on if you do not f ully
release the parking brake.
176
136
Emergency
Towing
Brake System Indicator
T aking Care of t he Unexpect ed168
Canada U.S.

If the electric motor will not close
the convertible top, do the f ollowing.Check the f use f or the convertible
top motor (see page ). If the
f use is blown, replace it with one
of thesameorlowerrating.
Try closing the convertible top. If
the new f use blows immediately or
the convertible top still does not
operate, you can close it manually. Locate the electrical connector f or
the convertible top motor.
It is under the lower corner of the
dashboard on the passenger’s side.
Disconnect the connector by
pushing the tab and pulling the
connector down.Holding each corner of the
convertible top, raise the top and
push it f orward as f ar as it will go.
Follow steps 4 through 6 of the
closing procedure on page .
3.
1.
2.
4.
5.
170
64
Closing the Convertible Top
T aking Care of t he Unexpect ed169
CONNECTOR

The interior f use box is underneath
the dashboard on the driver’s side.There are two under-hood f use
boxes in the engine compartment.
The primary under-hood f use box is
onthepassenger’ssidenexttothe
battery. To open it, push the two tabs
as shown.
The auxiliary f use box is on the
driver’s side, near the brake f luid
reservoir. To open it, push the tab on
each side, and remove the lid.If something electrical in your
vehicle stops working, check f or a
blown f use f irst. Determine f rom the
chart on pages and ,or the
diagram on the f use box lid, which
f uses control that device. Check
those fuses first, but check all the
f uses bef ore deciding that a blown
f use is the cause. Replace any blown
f uses, and check if the device works.
172 173
Fuses
T aking Care of t he Unexpect ed
Checking and Replacing Fuses
170
INTERIOR
UNDERHOOD
(AUXILIARY)
UNDERHOOD
(PRIMARY)

Turn the ignition switch to LOCK
(0). Make sure the headlights and
all other accessories are off.
Remove the cover f rom the f use
box.
Check each of the large f uses in
the under-hood f use box by
looking through the top at the wire
inside. Remove the screws with a
Phillips-head screwdriver.Check the smaller f uses in the
under-hood f use boxes and all the
fuses in the interior fuse box by
pulling out each one with the f use
puller provided in the primary
under-hood f use box.
Look f or a burned wire inside the
f use. If it is burned, replace it with
oneof thesparefusesof thesame
rating or lower.
If you cannot drive the vehicle
without f ixing the problem, and you
do not have a spare fuse, take a fuse
of the same rating or a lower rating
f rom one of the other circuits. Make
sureyoucandowithoutthatcircuit
temporarily (such as the accessory
power socket or radio).
If you replace the blown f use with a
spare f use that has a lower rating, it
might blow out again. This does not
indicate anything wrong. Replace the
f use with one of the correct rating as soon as you can.
If the replacement fuse of the
same rating blows in a short time,
there is probably a serious
electrical problem in your vehicle.
Leave the blown fuse in that
circuit, and have your vehicle
checked by a qualif ied mechanic.
If the radio f use is removed, the
audio system will disable itself . The
nexttimeyouturnontheradioyou
will see ‘‘Code’’ in the f requency
display. Use the preset buttons to
enter the f ive-digit code (see page ).
1.
2.
3. 4.
5.
6.
94
Fuses
T aking Care of t he Unexpect ed171
NOTICE:
BLOWN
Replacing a f use with one
that has a higher rating greatly
increases the chances of damaging the
electrical system. If you do not have a
replacement f use with the proper rating
f or the circuit, install one with a lower
rating.

µ
µµ
µ
µ
Î
Î
No. Amps.No. Amps. Circuits Protected
Circuits Protected
1
2
3
4
5
6
7
8
9
10
11
12
13 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 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 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, Backup
Lights
Ignition Coil
Engine Start
Fuel Pump, SRS
SRS
: Canadian Model
Fuse Locations
T aking Care of t he Unexpect ed172
I IN NT TE
ER
RI IOOR R F
FU
US SEE B
BOOX X

µ
µ
µ
µ
µ
µ
µµ
µ
µ
µ
No. Amps. No. Amps. Circuits Protected
No. Amps. Circuits Protected Circuits Protected
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 14
15
16
17
18
19
20
21
22
23
24
2520 A
15 A
10 A
20 A
15 A
20 A
20 A
30 A
100 A 40 A 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
1
2
3
4
5 20 A
70 A
60 A Rear Window Defogger
Not used
Not used
EPS
Air Pump Lighting 1 Relay
Lighting 2 Relay
Horn Relay
Power Window Motor
Right Roof Motor
Not used
Backup ACC
Lef t Roof Motor
Heater Motor
Condenser Fan
Not used
Condenser Fan Relay
Cooling Fan Relay
Fuse Locations
T aking Care of t he Unexpect ed173
(AUXILIARY FUSE BOX)
UNDER-HOOD FUSE BOXES
(PRIMARY FUSE BOX)