2004 Acura TL ignition

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 information (see page ).
If the indicator comes on
while driving, 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 coming on
could be 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 repeatedly,
even though it may go of f as you
continue driving, have the vehicle
checked by the dealer as soon as
possible.
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.If your vehicle battery has been
disconnected or gone dead, these
codes are erased. If takes at least
three days of normal driving to set
the codes again.
263
Malf unction Indicator L amp
T aking Care of t he Unexpect ed
Readiness Code
243
NOTICE:If you keep driving with the
Malf unction Indicator Lamp on, you
can damage your vehicle’s emission
controls and the engine. Those repairs
may not be covered by your vehicle’s
warranties.

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 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 ). The brake system indicator
normally comes on when
you turns the ignition
switch to ON (II) and as a
reminder to check the
parking brake. It will stay
on if you do not f ully
release the parking brake.
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.
If you must drive the vehicle a short
distance in this condition, drive
slowly and caref ully. If the ABS indicator and the VSA
system indicator come on with the
brake system indicator, have your
vehicle inspected by an Acura dealer
immediately.
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. 211
249
Brake System Indicator
Emergency
Towing
T aking Care of t he Unexpect ed244
Canada U.S.

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.
The vehicle’s f uses are in two f use
boxes. The interior f use box is on
the driver’s lower lef t side. To
remove the f use box lid, put your
f inger in the notch on the lid, pull it
toward you, and take it out of its
hinges.
The under-hood f use box is on the
driver’s side next to the air cleaner
housing.
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 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 f uses, and check
if the device works. 1.
2.
3.
247 248
CONT INUED
Checking and Replacing Fuses
Fuses
T aking Care of t he Unexpect ed245
UNDER-HOOD
INTERIOR
FUSE
BLOWN

If your vehicle is equipped with a
f ront spoiler, remove it bef ore
towing so it is not damaged. With the f ront wheels on the ground,
it is best to tow the vehicle no farther
than 50 miles (80 km), and keep the
speedbelow35mph(55km/h).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 previously, and leave the
ignition switch in the ACCESSORY
(I) position 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 run down the
battery.
Emergency T owing
T aking Care of t he Unexpect ed250
NOTICE:
NOTICE: 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.
T he steering system can be
damaged if the steering wheel is locked.
Leave the ignition switch in the
ACCESSORY (I) position, and make
sure the steering wheel turns f reely
bef ore you begin towing.

Thediagramsinthissectiongive
you the dimensions and capacities of
your Acura, and the locations of the
identif ication numbers. It also
includes inf ormation you should
know about your vehicle’s tires and
emissions control systems.................
Identif ication Numbers . 254
................................
Specif ications .256
DOT Tire Quality Grading ......................
(U.S. Vehicles) .258
.................................
Treadwear .258
......................................
Traction .258
.............................
Temperature .259
.................................
Tire Labeling .259 .......................
Emissions Controls .260
.....................
The Clean Air Act .260
Crankcase Emissions Control ....................................
System .260
Evaporative Emissions Control ....................................
System .260
Onboard Ref ueling Vapor ................................
Recovery .260
...
Exhaust Emissions Controls . 261
....................
PGM-FI System .261
Ignition Timing Control ................................
System .261
Exhaust Gas Recirculation ...................
(EGR) System . 261
Three Way Catalytic ...........................
Converter .261
....................
Replacement Parts . 261
..
Three Way Catalytic Converter . 262
..............
State Emissions Testing . 263
T echnical Inf ormat ion
T echnical Inf ormation253

The exhaust emissions controls
include f our systems: PGM-FI,
Ignition Timing Control, Exhaust
Gas Recirculation and Three Way
Catalytic Converter. These four
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 f rom the crankcase and
evaporative emissions control
systems.
The PGM-FI System uses sequential
multiport f uel injection.
It has three subsystems: Air Intake,
Engine Control, and Fuel Control.
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
operating conditions.This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
The Exhaust Gas Recirculation
(EGR) system takes some of the
exhaust gas and routes it back into
the intake manif old. Adding exhaust
gas to the air/f uel mixture reduces
the amount of NOx produced when
the f uel is burned.
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 ), nitrogen
(N ), and water vapor.
The emissions control systems are
designed and certif ied to work
together in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Acura replacement parts or their
equivalent f or repairs. Using lower
qualitypartsmayincreasethe
emissions f rom your vehicle.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual f or more informa-
tion.
2
2
Emissions Cont rols
T echnical Inf ormation
Exhaust Emissions Controls Replacement Parts
PGM-FI Syst emIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
261

CONT INUED
BatteryCharging System ...........................
Indicator .52, 242
............................
Jump Starting .238
..............................
Maintenance .226
............................
Specif ications .257
..............................
Bef ore Driving .163
....................................
Belts,Seat .8,19
...........................
Beverage Holder .106
Brakes ...........
Anti-lock System (ABS) . 189
.............
Break-in, New Linings . 164
...........................................
Fluid .211
.......................................
Parking .103
.................
System Indicator . 52,244 ........................
Wear Indicators .188
.............................
Braking System .188
........................
Break-in, New Car .164
..
Brightness Control, Instruments . 75
........................
Brights, Headlights .74
Bulb Replacement ..........................
Back-up Lights .216
.................................
Fog Lights .213
............................
Specif ications .257
............
Turn Signal Lights . 214,215
..............................
Bulbs, Halogen .213
............................
Capacities Chart .256
.............
Carbon Monoxide Hazard . 46
............................
Carrying, Cargo .171
Cassette Player ............................................
Care .138
...................................
Operation .136
..............
CAUTION, Explanation of . ii
..................................
Ceiling Light .104
........................
Certif ication Label .254
...................................
Chains, .225
...
Accessories and Modif ications . 168
................................
Accessories .169
............................
Modif ications .170
ACCESSORY (Ignition Key .......................................
Position) .80
............
Accessory Power Sockets . 106
................
Adding Engine Coolant . 207
........................
Adding Engine Oil .204
....................
Additives, Engine Oil . 205
...............................
Airbag (SRS) .9, 22
...............
Additional Information . 22
......................................
Servicing .28
...................
System Components . 22
..............
Air Conditioning System . 110
.......................
Air Pressure, Tires .221
......................................
Antif reeze .207
Anti-lock Brakes (ABS) ...............................
Indicator .53, 189
...................................
Operation .189
..............
Anti-thef t, Audio System . 140
.
Anti-thef t Steering Column Lock . 80
................................
Audio System .117
...
Automatic Lighting Off Feature . 76
...
Automatic Seat Belt Tensioners . 20.............
Automatic Speed Control . 142
..............
Automatic Transmission . 181
..........................
Capacity, Fluid .256
...............
Checking Fluid Level . 209
.......................................
Shif ting .181
.
Shif t Lever Position Indicator . 181
.......................................
Shif ting .181
....................
Shif t Lock Release . 185
tires
Index
A
BC
I

ÎÎÎ
ÎÎ.................
Jacking up the Vehicle . 232
.......................................
Jack, Tire .231
................................
Jump Starting .238
Gauges
...
Engine Coolant Temperature . 57
...............................................
Fuel .57
...............................
Speedometer .57
.................................
Tachometer .57
Gearshif t Lever Positions ..........
Automatic Transmission . 181
6-speed Manual .........................
Transmission .178
......................................
Glove Box .107 ...
Identif ication Number, Vehicle . 254
Ignition ..............................................
Keys .79
...........................................
Switch .80
............
Timing Control System . 261
........................
Immobilizer System .81
.........
Important Safety Precautions . 6
.........................................
Indicators .52
......
ABS (Anti-Lock Brake) . 53,189
Brake (Parking and Brake ............................
System) .52, 244
................
Charging System . 52,242
.............................
Cruise Control .54
DRL (Daytime Running ..................................
Lights) .55
...................................
Fog Light .56
...................................
High Beam .55
........
Key (Immobilizer System) . 56
......................................
Low Fuel .56 ................
Low Oil Pressure . 54,242
...........................
Side Airbag Of f .53
.........................................
SRS .26, 53
Turn Signal and Hazard ...................................
Warning .55
............................
VSA Activation .54
.................................
VSA System .54
...............................
Inf ant Restraint .34
......................................
Inf ant Seats .34
..........
Tether Anchorage Points . 41
...................
Inf lation, Proper Tire . 221
...................................
Inside Mirror .91
.............................
Inspection, Tire .222
............................
Instrument Panel .51
..........
Instrument Panel Indicators . 52
........
Instrument Panel Brightness . 75
...............................
Interior Lights .104
........................................
Introduction .i
.......................
Halogen Fog Bulbs .213
..........
HandsFree Link (HFL) . 70,149
..............
Hazard Warning Flashers . 76
........................................
Headlights .74
........................................
Aiming .213
Automatic Lighting Off .....................................
Feature .76
.......
Daytime Running Lights . 74
..................
High Beam Indicator . 55
.........................
Reminder Chime .74
...................................
Turning on .74
..............................
Head Restraints .89
.................
High-Low Beam Switch . 74HomeLink Universal
................................
Transceiver .145
....................................
Hood Latch .212
.......................
Hood, Opening the .166
Index
H I
J
IV