Page 216 of 268

If the headlights dim noticeably or
go out when you try to start the
engine, either the battery is
discharged or the connections are
corroded. Check the condition of the
battery and terminal connections
(see page ). You can then try
jump starting the vehicle from a
booster battery (see page ).In this case, the starter motor’s
speed sounds normal, or even f aster
than normal, when you press the
ENGINE START button, but the
engine does not run.
There may be an electrical
problem, such as no power to the
f uel pump. Check all the f uses
(see page ).
Are you using a properly coded
key? An improperly coded key will
cause the immobilizer system
indicator in the instrument panel
to blink rapidly (see page ).
Are you using the proper starting
procedure? Ref er to on page .
Do you have f uel? Check the f uel
gauge; the low f uel indicator may
not be working. If youfindnothingwrong,youwill
need a qualif ied mechanic to f ind the
problem. See
on page .
63
146
196
214 228222
T he Starter Operates Normally
Starting the
Engine Emergency T owing
If theEngineWon’tStart
T aking Care of t he Unexpect ed
213
2009 S2000
Page 217 of 268

´´
Although this seems like a simple
procedure, you should take several
precautions. Open the hood, and check the
physical condition of the battery.
In very cold weather, check the
condition of the electrolyte. If it
seems slushy or f rozen, do not try
jump starting until it thaws.
To jump start your vehicle:
Connect one jumper cable to the
positive ( ) terminal on your
battery. Connect the other end to
the positive ( ) terminal on the
booster battery.
Turn of f all the electrical
accessories: heater, A/C, audio
system, lights, etc. Put the
transmission in neutral, and set
the parking brake. The numbers in the illustrations
show you the order to connect the
jumper cables.
3.
1.
2.
Jump Starting
214
A battery can explode if you do
not follow the correct procedure,
seriously injuring anyone
nearby.
Keep all sparks, open flames,
and smoking materials away
from the battery.
If a battery sits in extreme cold, the
electrolyte inside can f reeze.
Attempting to jump start with a f rozen
battery can cause it to rupture.
2009 S2000
Page 219 of 268

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 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,
the engine should start to cool
down almost immediately. If it
does, wait until the temperature
gauge comes down to the midpoint,
then continue driving. 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. Saf ely pull to the side of the road.
Put the transmission in neutral,
and set the parking brake. Turn
of f the all accessories, and turn on
the hazard warning lights. If you don’t f ind an obvious leak,
check the coolant level in the
radiator reserve tank. Add coolant
if the level is below the MIN mark
(seeon
page ).
2. 1.
3. 4.
5.
6.
173 228
Emergency
Towing
A dding Engine Coolant
If theEngineOverheats
216
Steam and spray from an
overheated engine can
seriously scald you.
Do not open the hood if steam
is coming out.
2009 S2000
Page 221 of 268

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
(see on page).
This indicator should never come on
when the engine is running. If it
starts flashing or stays on, the oil
pressure has dropped very low or
lost pressure. Serious engine
damage is possible, and you should
take immediate action.
If the charging system indicator
comes on brightly when the engine
is running, the battery is not being
charged.
Go to a service station or garage
where you can get technical
assistance. 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.
Saf ely pull of f the road and shut
of f the engine. Turn on the hazard
warning lights.
1.
2.
3.
4. 170
131
228
L ow Oil Pressure Indicator, Charging System Indicator
Emergency T owing
L ow Oil Pressure
Indicator
Charging System
Indicator
218
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.
2009 S2000
Page 223 of 268

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 the
ON (II) position, and as a reminder
to check the parking brake. It will
stay on if you do not f ully release the
parking brake.
178 228Emergency
Towing
Brake System Indicator
220
Canada
U.S.
2009 S2000
Page 226 of 268

CONT INUED
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 use or f uses control that device.
Check those f uses f irst, 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.Turn the ignition switch to the
LOCK (0) position. Make sure the
headlights and all other
accessories are of f .
Remove the cover f rom the f use
box. Check each of the large f uses in
the primary under-hood f use box
by looking through the top at the
wire inside. Removing these f uses
requires 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 interior f use
box.
1.
2. 3.
4.
226227
Fuses
Checking and Replacing Fuses
T aking Care of t he Unexpect ed
223
BLOWN
FUSE PULLER
2009 S2000
Page 229 of 268
µÎ
Î
No.
No. Amps. Circuits Protected Amps. Circuits Protected
14
15
16
17
18
19
20
21
22
23
24
25
26
27
1
2
3
4
5
6
7
8
9
10
11
12
13 7.5 A
15 A
7.5 A
7.5 A 10 A
20 A
7.5 A 15 A
7.5 A
7.5 A 15 A
10 A Windshield Wiper,
Auto Stop Signal
Washer Motor
IGP (DBW)
IGP (LAF)
Accessory Socket
Windshield Wiper
Turn Signal Light
ACG
Meter, Backup Lights
Not used
Engine Start
Fuel Pump, SRS
SRS 10 A
15 A
7.5 A
7.5 A 10 A
15 A
7.5 A
7.5 A
7.5 A 20 A
20 A
15 A
15 A
15 A Daytime Running Lights
Keyless Entry
Back-up
Interior Light
Small Lights
Radio
TPMS
Heater Control,
Cooling Fan Relay
Power Mirrors
Right Power Window
Lef t Power Window
IG Coil
LAF
DBW
: if equipped
Fuse Locations
226
I
IN NT TE
ER
RI IOOR R F
FUUS SEE B
BOOX X
2009 S2000
Page 230 of 268
µ
µ
µ
µ
µ
µ
µµ
µ
Î
Î
Î
Î Î
Î
Î
No. No.
Amps. Circuits Protected
No. Amps.
Amps. Circuits Protected
Circuits Protected
1
2
3
4
5
6
7
8
9
10
11
12
13 14
15
16
17
18
19
20
21
22
23
24
25
20 A
70 A Rear Window Defogger
Not used
EPS
Not used
1
2
3
4 40 A
20 A
20 A
30 A
20 A
40 A
20 A
20 A
20 A
15 A
10 A
30 A
15 A
20 A
30 A
30 A
100 A 40 A Magnetic Clutch Relay
Right Headlight
ACG S
Hazard Warning Lights
Cooling Fan
Not used
Stop
Left Headlight
VSA F/S
VSA Motor
Battery
IG1 Main
Lighting 1 Relay
Lighting 2 Relay
Horn Relay
Power Window Motor
RightSoftTopMotor
Accessory Socket
Backup ACC
Left Soft Top Motor
Heater Motor
Condenser Fan
DBW
Condenser Fan Relay
Cooling Fan Relay
1: ExceptCRmodels
2 : if equipped2
1
1
2 2
Fuse Locations
T aking Care of t he Unexpect ed
227
AUXILIARY FUSE BOX
UNDER-HOOD FUSE BOXES:
PRIMARY FUSE BOX
2009 S2000