2005 HONDA CIVIC SEDAN ignition

Diagnosing why the engine won’t
start f alls into two areas, depending
on what you hear when you turn the
key to START (III):You hear nothing, or almost
nothing. The engine’s starter
motor does not operate at all, or
operates very slowly.
You can hear the starter motor
operating normally, or the starter
motor sounds like it is spinning
f aster than normal, but the engine
does not start up and run. When you turn the ignition switch to
START (III), you do not hear the
normal noise of the engine trying to
start. You may hear a clicking sound
or series of clicks, or nothing at all.
Check the transmission interlock.
If you have a manual transmission,
the clutch pedal must be pushed
all the way to the f loor or the
starter will not operate. With an
automatic transmission, it must be
in Park or Neutral. Turn the ignition switch to START
(III). If the headlights do not dim,
check the condition of the f uses. If
the f uses are OK, there is
probably something wrong with
the electrical circuit f or the
ignition switch or starter motor.
You will need a qualif ied
technician to determine the
problem (see
on page ).
Check these things:
If the headlights dim noticeably or
go out when you try to start the
engine, either the battery is dis-
charged or the connections are
corroded. Check the condition of
the battery and terminal connec-
tions (see page ). You can
then try jump starting the vehicle
f rom a booster battery (see page).
Turn the ignition switch to ON (II).
Turn on the headlights, and check
their brightness. If the headlights
areverydimordonotcomeonat
all, the battery is discharged. See
on page .190 178
190 202
If theEngineWon’tStart
Nothing Happens or the Starter
Motor Operates Very Slowly
Emergency T owing
Jump Starting
188

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.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.
There may be an electrical
problem, such as no power to the
f uel pump. Check all the f uses
(see page ).
If youfindnothingwrong,youwill
need a qualif ied technician to f ind
the problem. See
on page .
70
135 198
202
If theEngineWon’tStart
T he Starter Operates Normally
Starting the
Engine Emergency
Towing
T aking Care of t he Unexpect ed
189

If the indicator remains on, or the
f uel cap was not loose or missing,
have your vehicle checked by the
dealer as soon as possible.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 (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. 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. If the 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,
continued operation may cause
serious damage.
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. 218
Malf unction Indicator L amp
Readiness CodeT aking Care of t he Unexpect ed
195
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.

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 (seeon 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 lit
if you do not f ully release
the parking brake.
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. If the electric motor will not close
the moonroof , do the f ollowing:
Check the f use f or the moonroof
motor (see page ). If the f use
is blown, replace it with one of the
same or lower rating.
Try closing the moonroof . If the
new f use blows immediately or the
moonroof motor still does not
operate, you can close the
moonroof manually.
Get the moonroof wrench out of
the tool kit in the trunk.
1.
2.
3.
161
202 201On EX model in the U.S., and Si model
in Canada
Emergency
Towing
Brake Syst em Indicat or, Closing t he Moonroof
196
Canada U.S.

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.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 box and all the
fuses in the interior fuse box by
pulling out each one with the f use
puller provided in the under-hood
fuse box.
Look f or a burned wire inside the
f use. If it is burned, replace it with
one of the spare f uses of the same
rating or lower.
1.
2.
3.
4.
5.
200 201
Fuses
Checking and Replacing Fuses
198
UNDER-HOOD
TAB FUSE
BLOWN FUSE PULLER

µ
µ
µ
No. Amps. Circuits Protected
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20 20 A
15 A
7.5 A 20 A
10 A
15 A
15 A
20 A
10 A
40 A
30 A
40 A
40 A
40 A
20 A
20 A
20 A
80 A
40 A Condenser Fan
Small Light
Interior Light
Cooling Fan
Hazard
FI ECU
Horn, Stop
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
21 257.5A 30A
Fuse Locations
200
UNDER-HOOD FUSE BOX

µµ
µ
µ
µ
Î Î
Î
No. Amps. Circuits Protected
No. Amps. Circuits Protected
On Canadian models
:
1
2
3
4
5 15 A
20 A
10 A
10 A
Ignition Coil
LAF Heater
Daytime Running Lights
Alternator
Not Used 6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 7.5 A
20 A
7.5 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
20 A
20 A Power Window Relay
Moonroof
Accessory, Radio
Not Used
Meter
ABS
Daytime Running Lights
SRS
Remote Control Mirrors
Not Used
Not Used
Fuel Pump
Accessory Power Socket
Turn Signal Lights
Front Wiper
Not Used
Front Right Power Window
Front Left Power Window
Rear Lef t Power Window
Rear Right Power Window
Fuse Locations
T aking Care of t he Unexpect ed
201
INTERIOR FUSE BOX

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 vehicle is equipped with a
f ront spoiler, remove it bef ore
towing so it is not damaged.If you decide to tow your vehicle
with all f our wheels on the ground,
make sure you use a properly-
designed and attached tow bar.
Prepare the vehicle 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.
Emergency T owing
T aking Care of t he Unexpect ed
203
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.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.