2007 HONDA CIVIC SEDAN System

Put the radiator cap back on
tightl y. Run the engine, and check
the temperatu re gauge. If it goes
back to the red mark, the engine
needs repair (see
on page ).
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 temperatu re
gauge comes down to the midpoint,
th en continue driving.
If the temperatu re gauge stays at
the red mark, turn off the engine.
Look for any obvious coolant leaks,
such as a split radiator hose.
Everything is still extremely hot,
so use caution. If you find a leak, it
must be repaired before you
continue driving (see
on page ).
If you don’t find an obvious leak,
check the coolant level in the
radiator reserve tank (see page
). Add coolant if the level is
below the MIN mark. Start the engine, and set the
temperature control dial to
maximum heat. 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.
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.
Using gloves or a large heavy
cloth, turn the radiator cap
counterclockwise, without pushing
down, to the f irst stop. Af ter the
pressure releases, push down on
the cap, and turn it until it comes
off. If there was no coolant in the
reserve tank, you may need 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.
7.
8. 9.
3.
4.
5.
6. 10.
11.
276
181 276
Emergency
Towing
Emergency
Towing
If theEngineOverheats
266
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.

Let the vehicle sit for a minute.
Op en 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
dipsti ck (see page ).
Start the engine, and watch the oil
pressure indicator. If it does not go
out within 10 seconds, turn off the
engine. There is a mechanical
problem that needs to be repaired
befo re you can continue driving
(see on page
). 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. If the charging system
indicator comes on brightly
when the engine is running, the
battery is not being charged.
Saf ely pull of f the road, and shut
of f the engine. Turn on the hazard
warning lights.
1.
2.
3.
4. 179
224
276
L ow Oil Pressure Indicator
Emergency T owingCharging System Indicator
L ow Oil Pressure Indicator, Charging System Indicator
T aking Care of t he Unexpect ed
267
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 the indicator comes on repeatedly,
even though it may turn off as you
continue driving, have the vehicle
checked by your dealer as soon as
possible.
Your vehicle has certain ‘‘readiness
codes’’ that are part of the on-board
diagnostics for 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
this indicator comes on
while driving, it means one
of the engine’s emissions control
systems may have a problem. Even
though you may feel no difference in
your vehicle’s performance, it can
reduce your fuel economy and cause
increased emissions. Continued
operation may cause serious damag e. If
your vehicle’s battery has been
disconnected or gone dead, these
codes are erased. It can take several
days of driving under various
conditions to set the codes again.
To check if they are set, turn the
ignition switch to the ON (II)
position, without starting the engine.
The malfunction indicator lamp will
come on for 20 seconds. If it then
goes off, the readiness codes are set.
If it blinks five times, the readiness
codes are not set. If possible, do not
take your vehicle for a state
emissions test until the readiness
codes are set. Ref er to for more
inf ormation (see page ).
If you have recently ref ueled your
vehicle, the indicator coming on
could be due to a loose or missing
f uel f ill cap. You will also see a
‘‘CHECK FUEL CAP’’ message on
the inf ormation display. Tighten the
cap until it clicks at least once.
Tightening the cap will not turn the
indicator of f immediately; it can take
several days of normal driving.
290
Malf unction Indicator L amp
Readiness Codes
State
Emissions T esting
268
If you keep driving with the
malf unction indicator lamp on, you can
damage your vehicle’s emissions
controls and engine. Those repairs may
not be covered by your vehicle’s
warranties.

However, if the brake pedal does not
feel 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 feel the brake
pedal go down much farther before
the vehicle begins to slow down, and
you will have to press harder on the
pedal.
Slow down by shifting to a lower
gear, and pull to the side of the road
when it is safe. Because of the long
distance needed to stop, it is
hazardous to drive the vehicle. You
should have it to wed and repaired as
soon as possible (see
on page ).
If you must drive the vehicle a short
distance in this condition, drive
slowly and carefully.
The
brake system indicator
norm ally 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 fully
release the parking brake.
If the brake system indicator comes
on while driving, the brake fluid level
is probably low. Press lightly on the
brake pedal to see if it feels normal.
If it does, check the brake fluid level
thenexttimeyoustopataservice
station (see page ). If the ABS indicator comes on with
the brake system indicator, have
your vehicle inspected by your
dealer immediately.
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. 234
276Emergency
Towing
Brake System Indicator
T aking Care of t he Unexpect ed
269
Canada U.S.

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.
Look f or a blown wire inside the
f use. If it is blown, replace it with
oneof thesparefusesof thesame
rating or lower. If the replacement fuse of the
same rating blows in a short time,
there is probably a serious
electrical problem with your
vehicle. Leave the blown fuse in
that circuit, and have your vehicle
checked by a qualif ied technician.
6.
5.
Fuses
272
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.

If the driver’s power window fuse is
removed, the AUTO function of the
driver’s window will be disabled. You
should reset the AUTO feature, (see
page ).
If the radio fuse is removed, the
audio system will disable itsel f. The
nexttimeyouturnontheradioyou
will see ‘‘ENTER CODE’’ in the
frequency display. Use the preset
buttons to enter the digit code (see
page ).
Wh en the audio system is disabled,
the clock setting in the audio system
will be canceled. You will need to
reset the clock (see page ).
96
168 169
All models except DX
Fuses
T aking Care of t he Unexpect ed
273

Do not tie down the vehicle at an
angle that would allow the towing
cables to contact the vehicle’s f ront
bumper. To avoid possible damage,
protect the f ront bumper with tape.
If your vehicle is equipped with a
f ront spoiler, remove it bef ore
towing so it is not damaged.
Emergency Towing
T aking Care of t he Unexpect ed
277
The steering system can be damaged if
the steering wheel is locked. Leave the
ignition switch in the ACCESSORY (I)
position, and make sure the steering
wheel turns f reely bef ore you begin
towing.
Trying to lif t or tow your vehicle by the
bumpers will cause serious damage.
The bumpers are not designed to
support the vehicle’s weight.

Thediagramsinthissectiongive
you the dimensions and capacities of
your vehicle and the locations of the
identif ication numbers. It also
includes inf ormation you should
know about your vehicle’s tires and
emissions control systems.................
Identif ication Numbers .280
................................
Specif ications .282
DOT Tire Quality Grading
......................
(U.S. Vehicles) .284
.................................
Treadwear .284
......................................
Traction .284
.............................
Temperature .285
.................................
Tire Labeling .286 .......................
Emissions Controls .287
.....................
The Clean Air Act .287
Crankcase Emissions Control
....................................
System .287
Evaporative Emissions Control ....................................
System .287
Onboard Ref ueling Vapor ................................
Recovery .287
...
Exhaust Emissions Controls .288
....................
PGM-FI System .288
Ignition Timing Control
................................
System .288
Exhaust Gas Recirculation ...................
(EGR) System .288
Three Way Catalytic ...........................
Converter .288
....................
Replacement Parts .288
..
Three Way Catalytic Converter .289
..............
State Emissions Testing .290
T echnical Inf ormation
Technical Inf ormation
279