Page 371 of 524

Your vehicle’s starting system has an
auto control mode. When you turn
the ignition switch to the START
(III) position, this f eature keeps the
engine’s starter motor running until
the engine starts. Follow these
instructions to start the engine:Without touching the accelerator
pedal, turn the ignition switch to
the START (III) position, then
release the ignition switch. You do
not need to hold the ignition
switch in the START (III) position
to start the engine. Depending on
the outside temperature, the
starter motor runs f or about 6 to 9 seconds until the engine starts.
Make sure the shif t lever is in
Park. Press on the brake pedal. In cold weather, turn of f all
electrical accessories to reduce
the drain on the battery. Apply the parking brake. If the engine does not start, wait at
least 10 seconds bef ore trying
again. If you hold the ignition switch in
the START (III) position f or more
than 7 seconds, the starter motor,
depending on the outside
temperature, runs f or about 10 to
25 seconds until the engine starts.
1.
2.
3.
4.
Starting the Engine (6-cylinder models)
368
T he immobilizer system protects your
vehicle f rom thef t. If an improperly
coded key (or other device) is used, the
engine’s f uel system is disabled. For
more inf ormation, see page . The engine is harder to start in cold
weather. Also, the thinner air f ound at
altitudes above 8,000 f eet (2,400
meters) adds to this problem.
121
2010 TSX
Page 467 of 524

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 f alls into two areas, depending
on what you hear when you turn the
ignition switch to the START (III)
position:
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 f loor 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 f uses. If the f uses
areOK,thereisprobably
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 .
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. You hear nothing, or almost
nothing. The engine’s starter
motor does not operate at all, or
operates very slowly.
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 connections (see page ).
You can then try jump starting the
vehicle from a booster battery (see
page ).
466 466 482
453
Nothing Happens or the Starter
Motor Operates Very Slowly
Jump Starting Emergency T owing
If theEngineWon’tStart
464
2010 TSX
Page 468 of 524
In this case, the starter motor’s
speed sounds normal, or even f aster
than normal, when you turn the
ignition switch to the START (III)
position, but the engine does not run.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 .
Are you using the proper starting
procedure? Ref er 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 ).
121475
482
367
T he Starter Operates Normally
Emergency
Towing
Starting the
Engine
If theEngineWon’tStart
T aking Care of t he Unexpect ed
465
2010 TSX
Page 471 of 524
µIf 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.
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.
Connect the second jumper cable to
thenegative( )terminalonthe
booster battery. Connect the other
end to the engine hanger as shown.
Do not connect this jumper cable to
any other part of the engine. Install the battery terminal cover.
Keep 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. 6.
7.
8.
9.
6-cylinder models
6-cylinder models
Jump Starting
468
4-cylinder models with manual
transmission
6-cylinder models
2010 TSX
Page 483 of 524

µ
µ
µ
Î
Î
ÎÎÎ Î
ÎÎ Î
Î
No. No.No.
Amps.
Amps. Amps.
Circuits Protected Circuits ProtectedCircuits Protected
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15 16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
20 A
(10 A) 10 A
7.5 A
(7.5 A) 7.5 A
(7.5 A)
15 A
10 A
7.5 A
7.5 A 15 A
(7.5 A) 7.5 A
7.5 A
7.5 A
(20 A)
(20 A)
(20 A) 20 A
20 A
20 A
15 A
(10 A) 10 A
10 A
10 A
15 A
(7.5 A)
If equipped
Not Used
Seat Memory
Washer
Wiper
Meter
ABS/VSA
ACG
STS , Starter DIAG
Fuel Pump
VB SOL
SRS
ODS (Occupant Detection
System)
IG1 , STS
Not Used
Daytime Running LightsA/C
Accessory, Key, Lock
Accessory
Driver’s Power Seat Sliding
Moonroof
Driver’s Power Seat Reclining
Rear Driver’s Side Power
Window
Front Accessory Power Socket
Driver’s Power Window
Driver’s Side Door Lock
Lef t Front Fog Light
Lef t Side Small Lights
(Exterior)
Left Headlight High Beam
TPMS
Left Headlight Low Beam
Not Used
Engine Oil Level
1:
2:
3: 4-cylinder models
6-cylinder models
12 3
12 3
3
Fuse Locations
480
INTERIOR FUSE BOX (Driver’s Side)
2010 TSX