ignition Acura TSX 2007 Repair Manual

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.

However, if the brake pedal does not
feel 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 feel the brake
pedal go down much farther before
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 carefully.
Slow
down by shifting to a lower
gear, and pull to the side of the road
when it is safe. Because of the long
distance needed to stop, it is
hazardous to drive the vehicle. You
should have it to wed and repaired as
soon as possible (see
on page ).
If the brake system indicator comes
on while driving, the brake fluid level
is probably low. You will see a
‘‘BRAKE FLUID LOW’’ message on
the multi-information display. Press
lightly on the brake pedal to see if it
feels normal. If it does, check the
brake fluid level the next time you
stop at a service station (see page
).
The brake system indicator normally
comes on when you turn the ignition
switch to the ON (II) position, and as
a reminder to check the parking
brake. It will stay on if you do not
f ully release the parking brake.
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.
You will also see a ‘‘CHECK BRAKE
SYSTEM’’ message on the multi-
inf ormation display when this
indicator comes on.
If the ABS indicator and the VSA
system indicator come on with the
brake system indicator, have your
vehicle inspected by your dealer
immediately.
288 341
Emergency
Towing
Brake System Indicator
334
U.S. Canada

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

ε
µ
µ
Î
No.No.
Circuits Protected No.
Amps. Amps. Circuits ProtectedAmps. Circuits Protected
1
2
3
4
5
6
7
8
9
10
11
12
DBW
Ignition Coil
Daytime Running Light
LAF
Audio Amp
Interior Light 13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
15 A
15 A
(10 A) 10 A
20 A
10 A 10 A
20 A
15 A
7.5 A 30 A
7.5 A Back-Up Lights
Door Lock
Front Accessory Sockets
OPDS
Wiper
TPMS 20 A
20 A
20 A
20 A
20 A
15 A
15 A
10 A
7.5 A 10 A
7.5 A 20 A
20 A
20 A
20 A
20 A
7.5 A
7.5 A Passenger’s Power Seat
Reclining
Driver’s Power Seat Sliding
Heated Seat
Driver’s Power Seat Reclining
Passenger’s Power Seat Sliding
ACG
Fuel Pump
Washer
Meter
SRS
Left Rear Power Window
Right Rear Power Window
Passenger’s Power Window
Driver’s Power Window
Moonroof
Not Used
A/C
Not Used
ACC
Not Used
: On Canadian models
IGP (PGM-FI ECU) (ECM/PCM)
Fuse Locations
340
INTERIOR FUSE BOX

µµ
If your vehicle needs to be towed,
call a prof essional towing service or
organization. Never tow your vehicle
with just a rope or chain. It is very
dangerous.
The operator
loads your vehicle on the back of a
truck. Therearetwowaystotowyour
vehicle: If , due to damage, your vehicle must
be towed with the f ront wheels on
the ground, do this:
Release the parking brake.
Shif t the transmission to neutral.
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).
The tow
truck uses two pivoting arms that go
under the tires (f ront) and lif t them
of f the ground. The other two tires
remain on the ground. Turn of f the engine. ShifttoD,thentoN.
Start the engine.
Release the parking brake. Leave the ignition switch in the
ACCESSORY (I) position so the
steering wheel does not lock.
Leave the ignition switch in the
ACCESSORY (I) position so the
steering wheel does not lock.
Manual transmission:
Automatic transmission:
CONT INUED
Flat -bed EquipmentWheel-lif t Equipment
T his is the best way to
transport your vehicle.
T his is an
acceptable way to tow your
vehicle.
Emergency Towing
T aking Care of t he Unexpect ed
341
Improper towing preparation will
damage the transmission. Follow the
above procedure exactly. If you cannot
shif t the transmission or start the
engine (automatic transmission), your
vehicle must be transported with the
f ront wheels of f the ground.

Emergency Towing
342
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.The 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.

µ
Thediagramsinthissectiongive
you the dimensions and capacities of
your vehicle 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.
................
Identification Numbers . 344
................................
Specifications . 346
DOT Tire Quality Grading .....................
(U.S.Vehicles) .349
Unif orm Tire Quality ..................................
Grading .349
.................................
Treadwear .349
......................................
Traction .349
.............................
Temperature .350
.................................
Tire Labeling .351
Tire Pressure Monitoring System (TPMS) Required Federal ............................
Explanation .352
.......................
Emissions Controls .354
.....................
The Clean Air Act .354
Crankcase Emissions Control ....................................
System .354
Evaporative Emissions Control ....................................
System .354
Onboard Ref ueling Vapor ................................
Recovery .354
...
Exhaust Emissions Controls . 355
....................
PGM-FI System .355
Ignition Timing Control ................................
System .355 Three Way Catalytic
...........................
Converter .355
....................
Replacement Parts . 355
..
Three Way Catalytic Converter . 356
..............
State Emissions Testing . 357
T echnical Inf ormation
Technical Inf ormation
343

The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more informa-
tion. 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
quality parts may increase the
emissions f rom your vehicle.
The exhaust emissions controls
include three systems: PGM-FI,
ignition timing control, and three
way catalytic converter. These three
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 f uel control. The
powertrain control module (PCM) in
automatic transmission vehicles or
the engine control module (ECM) in
manual transmission vehicles 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 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.2
2
Emissions Cont rols
Exhaust Emissions Controls Replacement Parts
PGM-FI SystemIgnit ion T iming Cont rol Syst em
Three Way Catalytic Converter
Technical Inf ormation
355

Then drive in city/suburban
traffic for at least 10 minutes.
When traf f ic conditions allow, let
the vehicle coast f or several
seconds without using the
accelerator pedal or the brake
pedal.
If the testing f acility determines the
readiness codes are still not set, see
your dealer. Stop the vehicle, turn of f the
ignition switch, and leave it of f f or
30 minutes.
Select a nearby lightly traveled
major highway where you can
maintain a speed of 50 to 60 mph
(80to97km/h)foratleast20
minutes. Drive on the highway in
D (automatic) or 6th (manual). Do
notusethecruisecontrol.When
traffic allows, drive for 90 seconds
without moving the accelerator
pedal. (Vehicle speed may vary
slightly; this is okay.) If you cannot
do this f or a continuous 90
seconds because of traf f ic
conditions, drive f or at least 30
seconds, then repeat it two more
times (for a total of 90 seconds).
State Emissions T esting
358

CONT INUED
....................................
Accessories .236
ACCESSORY (Ignition Key .....................................
Position) .128
............
Accessory Power Sockets . 156
....................
Additives, Engine Oil . 288
.....................
Adjusting the Sound .175
Adjust Outside Temp. ...................................
Display . 73, 96
........
Advice For Pregnant Women . 17
.....................................
Airbag (SRS) .9
.....
Airbag, Additional Information . 23
...
Additional Safety Precautions . 35
.............................
Airbag Service .34
Check Airbag System ...................................
Message .83
How the Passenger Airbag Of f ......................
Indicator Works .33
How the Side Airbag Of f ......................
Indicator Works .32
..
How the SRS Indicator Works . 32
How Your Front Airbags .........................................
Work .26
...
How Your Side Airbags Work . 30How Your Side Curtain
..........................
Airbags Work .31
........................
SRS Components .23
............................
Air Conditioning .160
.........................................
Usage .162
.......................
Air Pressure, Tires .311
......................................
Alignment .312
.......................
Alcohol in Gasoline .230
Anti-lock Brakes (ABS) ...............................
Indicator . 65, 255
.......................................
Message .83
...................................
Operation .255
..............
Anti-thef t, Audio System . 201
Anti-thef t Steering Column ............................................
Lock .128
................................
Audio System .170
................
Automatic Lighting Off . 122
.
Automatic Seat Belt Tensionners . 21
..............
Automatic Transmission . 246
..........................
Capacity,Fluid .346
...............
Checking Fluid Level . 293
....
Sequential SportShif t Mode . 248
.......................................
Shif ting .246
.
Shif t Lever Position Indicator . 246
................
Shif t Lever Positions . 246
....................
Shif t Lock Release . 251......................
Auxiliary Input Jack .184
Battery Charging System ...........................
Indicator . 62, 332
.......................................
Message .84
............................
Jump Starting .327
..............................
Maintenance .316
............................
Specif ications .347
..............................
Bef ore Driving .229
..........................................
Belts, Seat .8
.........................
Beverage Holders .156
..................................
Booster Seats .52
Index
A
B
INDEX
I