2007 Acura TSX check engine

When you turn the ignition switch to
the START (III) position, you do not
hear the normal noise of the engine
trying to start. You may hear a
clicking sound, a series of clicks, or
nothing at all.
Diagnosing
why the engine won’t
start falls into two areas, depending
on what you hear when you turn the
ignition switch to the START (III)
position: 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
faster than normal, but the engine
does not start up and run. Check
these things:
Turn the ignition switch to the ON
(II) position. Turn on the
headlights, and check their
brightness. If the headlights are
very dim or do not come on at all,
the battery is discharged. See
on page .
Check
the transmission interlock.
If you have a manual transmission,
the clutch pedal must be pushed
all the way to the floor or the
starter will not operate. With an
automatic transmission, it must be
in Park or neutral. Turn
the ignition switch to the
START (III) position. If the
headlights do not dim, check the
condition of the fuses. If the fuses
areOK,thereisprobably
something wrong with the
electrical circuit for the ignition
switch or starter motor. You will
need a qualified technician to
determine the problem. See
on page .
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 ).341
327
316
327
Nothing Happens or the Starter
Motor Operates Very Slowly
Jump Starting Emergency T owing
If theEngineWon’tStart
T aking Care of t he Unexpect ed
325

In this case, the starter motor’s
speed sounds normal, or even faster
than normal, when you turn the
ignition switch to the START (III)
position, but the engine does not run. Do
you have fuel? Check the fuel
gauge; the low fuel indicator may
not be working.
There may be an electrical
problem, such as no power to the
fuel pump. Check all the fuses
(see page ).
Ifyoufindnothingwrong,youwill
need a qualified technician to find
the problem. See
on page .
Are you using the proper starting
procedure? Refer to
on 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 ).
127
243 336
341
If theEngineWon’tStart
T he Starter Operates Normally
Emergency
Towing
Starting the
Engine
326

µKeep the ends of the jumper
cables away from each other and
any metal on the vehicle until
everything is disconnected.
Otherwise, you may cause an
electrical short. Once your vehicle is running,
disconnect the negative cable f rom
your vehicle, then f rom the
booster battery. Disconnect the
positive cable f rom your vehicle,
then from the booster battery.
If the booster battery is in another
vehicle, have an assistant start
that vehicle and run it at a fast idle.
Start the vehicle. If the starter
motor still operates slowly, check
that the jumper cables have good
metal-to-metal contact.
Connect the second jumper cable
to the negative ( ) terminal on
the booster battery. Connect the
other end to the grounding point
as shown. Do not connect this
jumper cable to any other part of
the engine. 7.
6. 5.
4.
Jump Starting
328

Using gloves or a large heavy
cloth, turn the radiator cap
counterclockwise, without pushing
down, to the first stop. After the
pressure releases, push down on
the cap, and turn it until it comes
off. Put
the radiator cap back on
tightly. Run the engine, and check
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.
If you do not f ind an obvious leak,
check the coolant level in the
radiator reserve tank. Add coolant
if the level is below the MIN mark.
Start the engine, and set the
temperature to maximum heat
(climate control to AUTO at
‘‘ ’’). 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 there was no coolant in the
reserve tank, you may need to add
coolant to the radiator. Let the
engine cool down until the pointer
reaches the middle of the
temperature gauge or lower
bef ore checking the radiator.
7. 6.
8.
9. 10.
11.
341
Emergency
Towing
If theEngineOverheats
330
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.

Safely pull off the road, and shut
off the engine. Turn on the hazard
warning indicators.
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
dipstick (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
).
This indicator should never
come on when the engine is
running. If it starts f lashing or stays
on, or if you see a ‘‘CHECK ENGINE
OIL LEVEL’’ message on the multi-
inf ormation display, the oil pressure
has dropped very low or lost
pressure. Serious engine damage is
possible, and you should take
immediate action. 1.
2.
3.
4.234
287
341
L ow Oil Pressure Indicator
Emergency T owing
T aking Care of t he Unexpect ed
331
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 charging system indicator
comes on brightly when the engine
is running, or if you see a ‘‘CHECK
CHARGING SYSTEM’’ message on
the multi-information display, the
battery is not being charged.
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.If this indicator comes on while
driving, or if you see a ‘‘CHECK
EMISSION SYSTEM’’ message on
the multi-information display, it
means one of the engine’s emissions
control systems may have a problem.
Even though you may f eel no
dif f erence in your vehicle’s
perf ormance, it can reduce your f uel
economy and cause increased
emissions. Continued operation may
cause serious damage.
If you have recently ref ueled your
vehicle, the indicator could come on
due to a loose or missing f uel f ill cap.
You will also see a ‘‘TIGHTEN 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.
If the indicator comes on repeatedly,
even though it may turn of f as you
continue driving, have your vehicle
checked by your dealer as soon as
possible.
Charging System Indicator, Malf unction Indicator L amp
Charging System
Indicator
Malf unction Indicator
Lamp
332

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. 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. Refer to
for more
info rmation (see page ).
If
the battery in your vehicle has
been disconnected or gone dead,
thesecodesmaybeerased.Ittakes
several days of driving under various
conditions to set the codes again.
If
your vehicle has an automatic
transmission, the malfunction
indicator lamp may also come on
with the ‘‘D’’ indicator.
You will also see a ‘‘CHECK
EMISSION SYSTEM’’ message on
the multi-information display (see
page ). 357
84 Readiness Codes
State
Emissions T esting
Malf unction Indicator L amp
T aking Care of t he Unexpect ed
333
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.

The interior fuse box is on the
driver’s lower left side. To remove
the fuse box lid, pull it toward you
and take it out of its hinges. The
under-hood fuse box is located
near the back of the engine compart-
ment on the driver’s side. To open it,
pushthetabsasshown. Turn
the ignition switch to the
LOCK (0) position. Make sure the
headlights and all other
accessories are off.
Remove the cover from the fuse
box.
If
something electrical in your
vehicle stops working, the first thing
youshouldcheckforisablownfuse.
Determine f rom the chart on pages and , or the diagram on the
fuse box lid, which fuse or fuses
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 fuses,
andcheckif thedeviceworks.
1.
2. 339 340
Checking and Replacing Fuses
Fuses
336
INTERIOR
UNDER-HOOD
NOTCH TAB