2004 Acura MDX immobilizer

This section gives inf ormation about
the controls and displays that
contribute to the daily operation of
your Acura. All the essential controls
are within easy reach............................
Control Locations .56
............................
Instrument Panel .57
....................
Instrument Indicators .58
.............................................
Gauges .66
Controls Near the Steering ...........................................
Wheel .68
Windshield Wipers and ...................................
Washers .69
Rear Window Wiper and .....................................
Washer .71
...........
Turn Signal and Headlights . 72
........
Instrument Panel Brightness . 74
.................
Hazard Warning Button . 74
.................
Rear Window Def ogger . 75
.........................................
Fog Light .75
..........
Steering Wheel Adjustment . 76
..................................................
Keys .77
........................
Immobilizer System .78
................................
Ignition Switch .79
......................................
Door Locks .80
.......................
Remote Transmitter .81
.................................................
Seats .84
....................................
Seat Heaters .89
..............................
Power Windows .90
.........................................
Moonroof .91
.................................
Parking Brake .92 .............................................
Mirrors .92
Driving Position Memory ..........................................
System .94
.................................
Interior Lights .96
...........
Interior Convenience Items . 98
.......................
Beverage Holders .99
...............
Console Compartment . 99
....................................
Glove Box .99
...................
Rear Compartment . 100
.............................
Cargo Hooks .100
...................................
Sun Visor .100
............................
Vanity Mirror .100
........
Accessory Power Sockets . 101
Inst rument s and Cont rols
Instruments and Controls
55

Î
The U.S. instrument panel is shown. Dif f erences f or the Canadian models are noted in the text.
CONT INUED
Instrument Panel
Inst rument s and Cont rols57
VEHICLE STABILITY ASSIST
SYSTEM (VSA) INDICATOR
MALFUNCTION INDICATOR
LAMP
LOW OIL PRESSURE
INDICATOR
IMMOBILIZER SYSTEM
INDICATORSUPPLEMENTAL RESTRAINT
SYSTEM INDICATOR
DOOR AND TAILGATE
OPEN MONITOR
TIRE PRESSURE MONITOR
LOW FUEL INDICATOR LIGHTS ON
INDICATOR
WASHER LEVEL
INDICATOR
SEAT BELT
REMINDER
INDICATOR PARKING
BRAKE AND
BRAKE
SYSTEM
INDICATOR
TPMS INDICATOR
LOW TIRE PRESSURE
INDICATOR
BRAKE LAMP
INDICATOR
VSA ACTIVATION
INDICATOR SIDE AIRBAG OFF
INDICATOR
ANTI-LOCK BRAKE SYSTEM
INDICATOR
CRUISE CONTROL
INDICATOR
HIGH BEAM INDICATOR
MAINTENANCE
REQUIRED
INDICATOR
VTM- 4INDICATOR
A/T TEMPERATURE
INDICATOR (P.243)
(P.58)
(P.58)
(P.65)
CHARGING SYSTEM
INDICATOR
(P.62)
(P.62) (P.60)/
(P.60,64)
(P. 61)
(P.63)
(P.61)
(P.61)
(P.
58)
(P. 59)
(P.59) (P.61)
(P.62)
(P.58) (P.58)(P.64)
(P.64)
(P. 59)
(P.
60)
(P. 63)

This indicator has two f unctions:This indicator comes on when you
turn the ignition switch to ON (II).
It is a reminder to check the
parking brake. A beeper sounds if
you try to drive with the parking
brake not fully released. Driving
with the parking brake not fully
released can damage the brakes
and tires. This indicator normally comes on f or
a f ew seconds when you turn the
ignition switch to ON (II), and when
the ignition switch is turned to
START (III). If it comes on at any
other time, there is a problem in the
ABS. If this happens, have your
vehicle checked by your Acura
dealer. With this indicator on, your
vehicle still has normal braking
ability but no anti-lock. For more
inf ormation, see page .
This indicator comes on f or a f ew
seconds when you turn the ignition
switch to ON (II). It will go of f if you
have inserted a properly-coded
ignition key. If it is not a properly-
coded key, the indicator will blink
and the engine will not start (see
page ).
This indicator also blinks several
times when you turn the ignition
switch f rom ON (II) to ACCESSORY
(I) or LOCK (0).
If it remains on af ter you f ully
release the parking brake while
the engine is running, or if it
comes on while driving, there
could be a problem with the brake
system. For more inf ormation, see
page .
1.
2.
244 181
78
Instrument Panel Indicators
Inst rument s and Cont rols
Parking Brake and Brake System
Indicator Anti-lock Brake System
(A BS) Indicator
Immobilizer System
Indicator
59
U.S. Canada

The master key fits all the locks on
your vehicle. The valet key works
only in the ignition and the door
locks. You can keep the glove box
locked when you leave your vehicle
and the valet key at a parking f acility.Youshouldhavereceivedakey
number tag with your keys. You will
need this key number if you ever
have to get a lost key replaced. Use
only an Acura-approved key blank.
These keys contain electronic
circuits that are activated by the
Immobilizer System. They will not
work to start the engine if the
circuits are damaged.
Protect the keys f rom direct
sunlight, high temperature, and
high humidity.
Donotdropthekeysorsetheavy
objects on them.
Keep the keys away f rom liquids.
If they get wet, dry them
immediately with a sof t cloth.
The keys do not contain batteries.
Do not try to take them apart.
Keys
Inst rument s and Cont rols77
KEY
NUMBER
TAG MASTER
KEYS
(BLACK) VALET KEY
(GRAY)

The 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.
When you turn the ignition switch to
ON (II), the Immobilizer System
indicator should come on f or a f ew
seconds, then go out. If the indicator
starts to blink, it means the system
does not recognize the coding of the
key. Turn the ignition switch to
LOCK (0), remove the key, reinsert
it, and turn the switch to ON (II)
again.The system may not recognize your
key’s coding if another immobilizer
key or other metal object (i.e. key
f ob) is near the ignition switch when
you insert the key.
If the system repeatedly does not
recognize the coding of your key,
contact your Acura dealer.
Do not attempt to alter this system
or add other devices to it. Electrical
problems could result that may make
your vehicle undriveable.
If you have lost your key and cannot
start the engine, contact your Acura
dealer.As required by the FCC:
This device complies with Part 15 of theFCC rules. Operation is subject to thef ollowing two conditions: (1) This devicemay not cause harmf ul interf erence, and(2) this device must accept anyinterf erence received, includinginterf erence that may cause undesiredoperation.
Changes or modif ications not expresslyapproved by the party responsible f orcompliance could void the user’sauthority to operate the equipment.
This device complies with IndustryCanada Standard RSS-210.Operation is subject to the f ollowing twoconditions: (1) this device may not causeinterf erence, and (2) this device mustaccept any interf erence that may causeundesired operation of the device.
Immobilizer Syst em
Inst rument s and Cont rols78

Diagnosing why the engine won’t
start f alls into two areas, depending
on what you hear when you turn the
key to START (III):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
f aster than normal, but the engine
does not start up and run.
When you turn the ignition switch to
START (III), you do not hear the
normal noise of the engine trying to
start. You may hear a clicking sound
or series of clicks, or nothing at all.
Check these things: Check the transmission interlock.
The transmission must be in Park
orNeutralorthestarterwillnot
operate.
Turn the ignition switch to ON (II).
Turn on the headlights, and check
their brightness. If the headlights
are very dim or don’t light at all,
the battery is discharged. See
on page .
Turn the ignition switch to START
(III). If the headlights do not dim,
check the condition of the f uses. If
thefusesareOK,thereis
probably 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 ). 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 vehicle
f rom 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 a properly coded
key? An improperly coded key will
cause the immobilizer system
indicator in the dash panel to blink
rapidly(seepage ).
238
244 226
238
78
CONT INUED
If Your Engine Won’t Start
Nothing Happens or the Starter
Motor Operates Very Slowly Jump Starting
Emergency T owing T he Starter Operates Normally
T aking Care of t he Unexpect ed237

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Circuits Protected
No. Amps. No. No.Circuits Protected
Amps. Circuits Protected Amps.
Horn
Auto Wipers
1
2
3 7.5 A
7.5 A
7.5 A
1
2
3
4
5
6
7
8
9
10
11
12
13 1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 Moonroof
Driver’s Power Seat Sliding
Passenger’s Power Seat
Reclining
Daytime Running Light
Driver’s side Rear Power
Window
Front Passenger’s Power
Window
Front Accessory Socket
Small Light
Interior Light, TPMS
Power Door Lock
Back Up, Clock
Heated Seat
Driver’s Power Window
Passenger’s Side Rear
Power Window
15 A
10 A
7.5 A
7.5 A 10 A
15 A
7.5 A
7.5 A 10 A
7.5 A 15 A
30 A Fuel Pump
SRS
Heater Control, A/C Clutch
Relay, Cooling Fan Relay
Power Mirror
Daytime Running Light /
Rear Wiper
ECU(PCM),CruiseControl
OPDS
ACC Relay
Back-up Lights, Instrument
Lights, TPMS
Turn Signals
IG Coil
Front Wiper
Not Used 30 A
20 A
20 A
20 A
20 A
10 A
20 A
20 A
15 A
15 A
10 A
20 A
7.5 A 20 A
20 A
20 A
: Canadian models
Canadian models
:
ELD Unit, Immobilizer Control
Unit, VSA Control Unit, Alternator Driver’s Power Seat Reclining
Passenger’s Power Seat Sliding
Fuse Locations
T aking Care of t he Unexpect ed249
Driver’s Side INTERIOR FUSE BOX
Passenger’s Side
Front Front
Driver’s Side
Auxiliary

.................................................
Fuel .158
......................
Fill Door and Cap .159
...........................................
Gauge .66
................
Octane Requirement . 158
...............................
Oxygenated .158
........................
Reserve Indicator .61
........................
Tank, Filling the .159
.....................
Fuses, Checking the .246
.............
Halogen Headlight Bulbs . 214
..............
Hazard Warning Flashers . 74
........................................
Headlights .72
........................................
Aiming .214
....................
Automatic Lighting .73
............
Daytime Running Lights . 74
..................
High Beam Indicator . 61
...........
High Beams, Turning on . 72
............
Low Beams, Turning on . 72
.........................
Reminder Chime .72
........
Replacing Halogen Bulbs . 214
...................................
Turning on .72
...................................
Headphones .141
..............................
Head Restraints .86
.................................
Heated Mirror .93
.................................
Heaters, Seats .89
.....................
Heating and Cooling .104 .................
High-Low Beam Switch . 72
HomeLink Universal ................................
Transceiver .153
....................................
Hood Latch .214
.......................
Hood, Opening the .160
..................................................
Horn .68
...............
Gas Mileage, Improving . 162
.........................................
Gasoline .158
...............
Fuel Reserve Indicator . 61
...........................................
Gauge .66
................
Octane Requirement . 158
........................
Tank, Filling the .159
................
Gas Station Procedures . 159
Gauges ...
Engine Coolant Temperature . 67
...............................................
Fuel .66
...............................
Speedometer .66
.................................
Tachometer .66
GAWR (Gross Axle Weight .......................................
Rating) .185 GCWR (Gross Combined Weight
.......................................
Rating) .185
............
Gearshif t Lever Positions . 172
........................................
Glove Box .99
GVWR (Gross Vehicle Weight .......................................
Rating) .185
...
Identif ication Number, Vehicle . 252
Ignition ..............................................
Keys .77
...........................................
Switch .79
............
Timing Control System . 260
........................
Immobilizer System .78
.........
Important Safety Precautions . 6
.........
Indicators, Instrument Panel . 58
...............
ABS (Anti-lock Brake) . 59
....................................
A/T Temp .62
Brake (Parking and Brake ....................................
System) .59
.................................
Brake Lamp .60
........................
Charging System .58
.............................
Cruise Control .61
DRL (Daytime Running ......................................
Lights) .61
Index
G HI
IV