2004 Acura TSX check engine

Turn the ignition switch to START
(III). If the headlights do not dim,
check the condition of the f uses. If
thefusesareOK,thereisproba-
bly something wrong with the
electrical circuit for the ignition
switch or starter motor. You will
need a qualif ied technician to
determine the problem. (Seeon page .)
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 car from
a booster battery (see 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.
Are you using the proper starting
procedure? Ref er to on page .
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. 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 ).
If youfindnothingwrong,youwill
need a qualif ied technician to f ind
the problem. See on page .
328
312
265 199
324
328
79
If Your Engine Won’t Start
T aking Care of t he Unexpect ed
Emergency T owing T he Starter Operates Normally
Starting the
Engine
Emergency
Towing
311

Put the transmission in Neutral or
Park, and set the parking brake. Open the hood and check the
physical condition of the battery
(see page ). In very cold
weather, check the condition of
the electrolyte. If it seems slushy
or like ice, do not try jump starting
until it thaws.
To jump start your car, f ollow these
directions closely:
If your car’s battery has run down,
you may be able to start the engine
by using a booster battery. Although
this seems like a simple procedure,
you should take several precautions.
You cannot start an Acura with an
automatic transmission by pushing
or pulling it. Turn of f all the electrical acces-
sories: climate control, audio
system, lights, etc.
1.
2.
265
T aking Care of t he Unexpect ed
Jump Starting
312
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.

If the temperature gauge stays at
the red mark, turn of f the engine.
Wait until you see no more signs
of steam or spray, then open the
hood.
If there was no coolant in the
reserve tank, you may also have to
add coolant to the radiator. Let the
engine cool down until the pointerreaches the middle of the tempera-
ture gauge, or lower, bef ore check-
ing the radiator.
Using gloves or a large heavy
cloth, turn the radiator cap
counterclockwise, without pushing
down, to the f irst stop. This
releases any remaining pressure in
the cooling system. After the
pressure releases, push down on
the cap and turn it until it comes
off.
If you don’t f ind an obvious leak,
check the coolant level in the
radiator reserve tank (see page
). If the level is below the
MIN mark, add coolant to halfway
between the MIN and MAX marks. 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 (see on page ). Start the engine and set the
temperature control to its upper
limit, . 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.
Put the radiator cap back on
tightly. Run the engine and watch
the temperature gauge. If it goes
back to the red mark, the engine
needs repair. (See
on page .)
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.
4.
5.
6.
7.
8. 9.10.
328
189 11.
12.
328
T aking Care of t he Unexpect ed
If Your Engine Overheats
Emergency
Towing
Emergency
Towing
316
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.

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.Saf ely pull of f the road and shut
of f the engine. Turn on the hazard
warning indicators.
If necessary, add oil to bring the
level back to the full mark on the
dipstick (see page ). 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.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 .)
1.
2.
3. 4.
187 244 328
L ow Oil Pressure Indicator
T aking Care of t he Unexpect ed
Emergency
Towing
317
LOW OIL PRESSURE INDICATOR
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.

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.Youshouldalsohavethedealer
inspect your car if this indicator
comes on repeatedly, even though it
may turn of f as you continue driving.
This indicator may also come on
along with the ‘‘D’’ indicator.
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 at least
three 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 at least three
days of normal driving.
If the indicator remains on past three
days of normal driving, 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 f ull-throttle
acceleration and driving at high
speed.
Malf unction Indicator L amp
T aking Care of t he Unexpect ed319
MALFUNCTION INDICATOR LAMP
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.

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. Ref er to
State Emissions Testing f or more
inf ormation. (See page .)
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.
345
Malf unction Indicator L amp
T aking Care of t he Unexpect ed
Readiness Codes
320

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#
) This manual describes the procedures involved in the
replacement of damaged body parts. This manual covers maintenance and recommended
procedures f or repair to engine and chassis components.
It is written f or the Journeyman mechanic, but is simple
enough f or most mechanically-inclined owners to under-
stand.
This manual complements the Service Manual by
providing in-depth troubleshooting inf ormation f or each
electrical circuit in your car.
Authorized Manuals
Service Manual:
Electrical T roubleshooting Manual:
Body Repair Manual:
352
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CONT INUED
...
Accessories and Modif ications . 191
................................
Accessories .191
.
Additional Safety Precautions . 192
............................
Modif ications .192
ACCESSORY (Ignition Key .......................................
Position) .81
.............
Accessory Power Socket . 109
....................
Additives, Engine Oil . 246
.....................................
Airbag (SRS) .9
.....................
Air Cleaner Element .261
............................
Air Conditioning .115
..............................
Maintenance .269
.........................................
Usage .115
.......................
Air Pressure, Tires .273
.......................
Alcohol in Gasoline .340
......................................
Antif reeze .249
Anti-lock Brakes (ABS) ................................
Description .213
...............................
Indicator .61, 214
...................................
Operation .213
.
Anti-thef t Steering Column Lock . 80
..........................
Appearance Care .295
..........................................
Armrest .105
........................
Audio System .129, 148 .............
Automatic Speed Control . 174
..............
Automatic Transmission . 204
..........................
Capacity, Fluid .334
...............
Checking Fluid Level . 256
.......................................
Shif ting .204
.
Shif t Lever Position Indicator . 204
................
Shif t Lever Positions . 204
....................
Shif t Lock Release . 210
Battery ......
Charging System Light . 60,318
............................
Jump Starting .312
..............................
Maintenance .265
............................
Specif ications .335
..............................
Bef ore Driving .183
..........................................
Belts, Seat .8
.........................
Beverage Holders .106
...................................
Body Repair .312
Brakes ...........
Anti-lock System (ABS) . 213
.............
Break-in, New Linings . 184
....................
Bulb Replacement .286
...........................................
Fluid .259
.......................................
Parking .104 .........................
System Indicator .60
........................
Wear Indicators .212
.............................
Braking System .213
........................
Break-in, New Car .184
..
Brightness Control, Instruments . 72
........................
Brights, Headlights .70
Bulb Replacement ..........................
Back-up Lights .287
..............................
Brake Lights .286
..............................
Ceiling Light .290
................
Door Courtesy Light . 291
................
Front Parking Lights . 285
.................................
Headlights .282
.........
High-mount Brake Light . 289
...................
License Plate Light . 289
............................
Specif ications .335
...................................
Spotlights .290
...............................
Trunk Light .292
....................
Turn Signal Lights . 284
................
Vanity Mirror Lights . 291
..............................
Bulbs, Halogen .282
Index
A
B
I