ignition HONDA CIVIC COUPE 2003 7.G Workshop Manual

If youfindnothingwrong,youwill
need a qualif ied technician to f ind
the problem. Seeon page .
In this case, the starter motor’s
speed sounds normal, or even f aster
than normal, when you turn the
ignition switch to START (III), but
the engine does not run.
Your car has the Immobilizer
System. You should use a
properly-coded master or valet key
to start the engine (see page ).
A key that is not properly coded
will cause the immobilizer system
indicator in the dash panel to blink
rapidly.
Are you using the proper starting
procedure? Ref er to on page . Do you have f uel? Turn the
ignition switch to ON (II) for a
minute and watch the f uel gauge.
The low f uel level warning light
may not be working, so you were
not reminded to f ill the tank.
There may be an electrical
problem, such as no power to the
f uel pump. Check all the f uses
(see page ).
171 81 279
283
Emergency
Towing
T he Starter Operates Normally
Starting the
Engine
If Your Engine Won’t Start
T aking Care of t he Unexpect ed266
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This indicator should light when the
ignition switch is ON (II), and go out
af ter the engine starts. It should
never come on when the engine is
running. If it starts f lashing, it
indicates that the oil pressure
dropped very low f or a moment, then
recovered. If the indicator stays on
with the engine running, it shows
that the engine has lost oil pressure
and serious engine damage is
possible. In either case, you should
take immediate action.Letthecarsitforaminute.Open
the hood and check the oil level
(see page ). Although oil level
and oil pressure are not directly
connected, an engine that is 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 the light
does not go out within ten 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 .)
Saf ely pull of f the road and shut
of f the engine. Turn on the hazard
warning indicators.
1. 2. 3. 4.
160
203
283
L ow Oil Pressure Indicator
T aking Care of t he Unexpect ed
Emergency
Towing
272
DX models
LOW OIL PRESSURE INDICATOR
LOW OIL PRESSURE INDICATOR
U.S.: HX, LX, EX Canada : LX, Si
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 car stopped.
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This indicator should come on when
the ignition switch is ON (II), and go
out af ter the engine starts. If it
comes on brightly when the engine
is running, it indicates that the
charging system has stopped
charging the battery.By eliminating as much of the
electrical load as possible, you can
drive several miles (kilometers)
before the battery is too discharged
to keep the engine running. Drive to
a service station or garage where
you can get technical assistance.
Immediately turn of f all electrical
accessories: radio, heater, A/C, rear
def ogger, cruise control, etc. Try not
to use other electrically-operated
controls such as the power windows.
Keep the engine running and take
extra care not to stall it. Starting the
engine will discharge the battery
rapidly.
Charging System Indicator
T aking Care of t he Unexpect ed273
DX models
CHARGING SYSTEM INDICATOR
CHARGING SYSTEM INDICATOR
U.S.: HX, LX, EX Canada : LX, Si
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This indicator should light when the
ignition switch is ON (II), and go out
af ter the engine starts. If it comes on
at any other time, it indicates one of
the engine’s emissions control
systems may have a problem. Even
though you may f eel no dif f erence in
your car’s perf ormance, it can
reduce your f uel economy and cause
your car to put out excessive
emissions. Continued operation may
cause serious damage.If the indicator remains on past one
driving trip, or the f uel cap was not
loose or missing, have the car
checked by the dealer as soon as
possible. Drive moderately until the
dealer has inspected the problem.
Avoid full-throttle acceleration and
driving at high speed.
Youshouldalsohavethedealer
inspect your car if this indicator
comes on repeatedly, even though it
may turn of f as you continue driving.
If you have recently ref ueled your
car, the cause of this indicator
coming on could be a loose or
missing f uel f ill cap. Check the cap
and tighten it until it clicks several
times. Replace the f uel f ill cap if it is
missing. Tightening the cap will not
make the indicator turn of f
immediately; it takes one driving trip.
Malf unct ion Indicat or L amp
T aking Care of t he Unexpect ed274
MALFUNCTION INDICATOR LAMP
MALFUNCTION INDICATOR LAMP DX models
U.S.: HX, LX, EX Canada : LX, Si
If you keep driving with the
malf unction indicator lamp on, you can
damage your car’s emissions controls
and engine. Those repairs may not be
covered by your car’s warranties.
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Your car 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 car’s battery has been
disconnected or gone dead, these
codes are erased. It takes several
days of driving under various
conditions to set the codes again. If possible, do not take your car f or a
state emissions test until the
readiness codes are set. To check if
they are set, turn the ignition ON (II),
but do not start 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. See State
Emissions Testing on page .
The Brake System Indicator
normallycomesonwhenyouturn
the ignition switch ON (II). It is a
reminder to check the parking brake.
It comes on and stays lit if you do not
f ully release the parking brake.
297
CONT INUED
Readiness Codes
Brake System Indicator
T aking Care of t he Unexpect ed
Malf unction Indicator L amp, Brake System Indicator
275
U.S. indicator shown
BRAKE SYSTEM INDICATOR
U.S.: HX, LX, EX Canada : LX, Si
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If something electrical in your car
stops working, the f irst thing you
should check f or is a blown f use.
Determine f rom the chart on pagesand , or the diagram on the
fuse box lid, which fuse or fuses
control that component. Check those
f uses f irst, but check all the f uses
bef ore deciding that a blown f use is
not the cause. Replace any blown
f uses and check the component’s
operation.
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. Removing these f uses
requires a Phillips-head screw-
driver.
Check the smaller f uses in the
under-hood f use box and all the
fuses in the interior fuse box by
pulling out each f use with the f use
puller provided in the under-hood
fuse box.
3.
1. 2. 4.
281 282
CONT INUED
Checking and Replacing Fuses
Fuses
T aking Care of t he Unexpect ed279
FUSE
BLOWN FUSE PULLER
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µ
µ
µ
No.
CONT INUED
Amps. Circuits Protected
1 23456789
1011121314151617181920 20 A
15 A
7.5 A 20 A
10 A
15 A
15 A
20 A
10 A
40 A
40 A
40 A
40 A
40 A
15 A
20 A
15 A
80 A
40 A Condenser Fan
Small Lights
Interior Light
Cooling Fan
Hazard, Turn Signals
FI ECU
Horn, Brake Light
ABS F/S
Back Up
ABS Motor
Rear Defroster
Heater Motor
Power Window
Option
Lef t Headlight
Door Lock
Right Headlight
Not Used
Battery
Ignition 1
Spare Fuses
21 257.5 A 30 A
Fuses
T aking Care of t he Unexpect ed281
UNDER-HOOD FUSE BOX
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µµ µ µ µ µ
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No. Amps.No. Amps.
Circuits Protected Circuits Protected
: On Canadian models
12345 15 A
20 A
10 A
10 A 6789
1011 1213141516171819202122232425 7.5 A
20 A
7.5 A 10 A
7.5 A
7.5 A
7.5 A
10 A
10 A
15 A
15 A
7.5 A 20 A
20 A
20 A
Ignition Coil
LAF Heater
Daytime Running Lights
Alternator
Not Used Power Window Relay
Moonroof
Accessory, Radio
SIDE SRS
Meter
ABS
Daytime Running Lights
SRS
Power Mirrors
(Security)
Not Used
Fuel Pump
Accessory Power Socket
Turn Signal Lights
Front Wipers
Not Used
Front Right Power Window
Front Left Power Window
Not Used
Not Used
Fuses
T aking Care of t he Unexpect ed282
INTERIOR FUSE BOX
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If you decide to tow your car with all
f our wheels on the ground, make
sure you use a properly-designed and
attached tow bar. Prepare the car for
towing as described above, and leave
the ignition switch in Accessory (I)
so the steering wheel does not lock.
Make sure the radio and any items
plugged into the accessory power
socket are turned of f so they do not
rundownthebattery.
With the f ront wheels on the ground,
it is best to tow the car no farther
than 50 miles (80 km), and keep the
speedbelow35mph(55km/h).
If your car is equipped with a f ront
spoiler, remove it bef ore towing so it
is not damaged.
Emergency T owing
T aking Care of t he Unexpect ed284
Trying to lif t or tow your car by the
bumpers will cause serious damage.
The bumpers are not designed to
support the car’s weight.
The steering system can be damaged if
the steering wheel is locked. Leave the
ignition switch in Accessory (I), and
make sure the steering wheel turns
f reely bef ore you begin towing.
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The three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine’s exhaust
to carbon dioxide (CO ), dinitrogen
(N ), and water vapor.
This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO and NOx produced.
The PGM-FI System uses sequential
multiport f uel injection.
It has three subsystems: Air Intake,
Engine Control, and Fuel Control.
The Engine Control Module (ECM)
or the Powertrain Control Module
(PCM) uses various sensors to
determine how much air is going
into the engine. It then controls how
much f uel to inject under all operat-
ing conditions.
The emissions control systems are
covered by warranties separate f rom
the rest of your car. Read your
warranty manual f or more inf orma-
tion.
The Onboard Ref ueling Vapor
Recovery (ORVR) system captures
the f uel vapors during ref ueling. The
vapors are adsorbed in a canister
f illed with activated carbon. While
driving, the f uel vapors are drawn
into the engine and burned of f .
The exhaust emissions controls
include three systems: PGM-FI,
Ignition Timing Control and Three
Way Catalytic Converter. These
three systems work together to
control the engine’s combustion and
minimize the amount of HC, CO, and
NOx that comes out the tailpipe. The
exhaust emissions control systems
are separate from the crankcase and
evaporative emissions control
systems. The emissions control systems are
designed and certif ied to work to-
gether in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
genuine Honda replacement parts or
their equivalent f or repairs. Using
lowerqualitypartsmayincreasethe
emissions f rom your car.
2
2
Replacement Parts
Onboard Ref ueling Vapor
Recovery
Exhaust Emissions ControlsPGM-FI Syst em
Three Way Catalytic Converter
Ignit ion T iming Cont rol Syst em
Emissions Cont rols
T echnical Inf ormation295
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