2012 Acura MDX headlights

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.
Nothing Happens or the Starter
Motor Operates Very Slowly
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.Check these things:
●
Check the transmission interlock.
The transmission must be in Park
or neutral or the starter will not
operate.
●
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
Jump Startingon page 558.
●
Turn the ignition switch to the
START (III) position. If the
headlights do not dim, check the
condition of the fuses. If the fuses
are OK, there is probably
something wrong with the
electrical circuit for the ignition
switch or starter motor. You will
need a qualified technician to
determine the problem. See
Emergency Towingon page 572.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 547). You
can then try jump starting the
vehicle from a booster battery (see
page 558).
The Starter Operates Normally
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.
●
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 74).
CONTINUED
If the Engine Won't Start
557
Taking Care of the Unexpected

The secondary fuse box is on the
passenger's side.
To open it, push the tabs as shown.
If equippedThe sub fuse box is on the
passenger's side.
To open it, push the tabs as shown.Checking and Replacing Fuses
If something electrical in your
vehicle stops working, the first thing
you should check for is a blown fuse.
Determine from the chart on pages
569, 570, and 571, or the diagram on
the fuse box lid, which fuse or fuses
control that device. Check those
fuses first, but check all the fuses
before deciding that a blown fuse is
the cause. Replace any blown fuses,
and check if the device works.
1. Turn the ignition switch to the
LOCK (0) position. Make sure the
headlights and all other
accessories are off.
2. Remove the cover from the fuse
box.
UNDER-HOOD (SECONDARY)
TAB
UNDER-HOOD (SUB)
TAB
Fuses566

PRIMARY UNDER-HOOD FUSE BOX
No. Amps. Circuits Protected
1 120 A Main fuse
－Not Used
2－1 30 A ADS
ᤳ2
2－2 30 A SH-AWD
2－3 30 A Rear Blower Motor
2－4 40 A ABS VSA
2－5 40 A Trailer Main
2－6 40 A Power Seats, Driver's Position
Memory System, Subwoofer,
Telescopic Steering Wheel
2－7 40 A Front Heated Seat, TPMS,
Moonroof, Driver's Lumbar
Support
2－8－－
3－1 60 A Fog Lights, Front Blower
Motor, Interior Light
3－2 40 A Headlights, Daytime Running
Lights
3－3 60 A Cooling Fan, Condenser Fan,
MG Clutch, Headlight
Washer
ᤳ1
3－4 50 A Ignition Switch Main
ᤳ1: Canadian model
ᤳ2: If equippedNo. Amps. Circuits Protected
3－5 50 A Power Window
3－6 60 A Power Tailgate Opener/Closer,
Rear ACC Socket, Interior
Light,
Rear Defroster
3－7 30 A ECU (PCM)
3－8 30 A TECH
4 40 A Audio, Door Lock, Interior
Lights, Front ACC Socket
5 30 A EPT-L
ᤳ2
6 30 A EPT-R
ᤳ2
7 30 A FI ECU
8 30 A Audio Amplifier
9 7.5 A Battery Sensor
10 15 A Hazard
11 15 A Horn, Stop
12 20 A ABS VSA
13 20 A Trailer (Brake)
14 20 A Rear Heated Seat
ᤳ2
15 20 A A/C Inverter
CONTINUED
Fuse Locations
569
Taking Care of the Unexpected

Lights
Headlights High 60 W (HB3)
Low
ᤳ1
35 W (D2S)
Daytime running lights 60 W (HB3)
Front side marker lights 3 CP
Front turn signal lights 21 W (Amber)
Parking lights 3 CP
Stop/Tail lights LED
ᤳ2
Side turn signal lights LED
ᤳ2
Fog lights 55 W (H11)
Rear turn signal lights 21 W
Rear side marker lights 3 CP
Backup lights 18 W
High-mount brake light LED
ᤳ2
License plate lights 3 CP
Tailgate lights 5 W
Vanity mirror lights 2 W
Door lights 3.4 W
Glove box light 1.4 W
Foot light 3.4 W
ᤳ1: The low beam headlights are high voltage discharged type.
Replacement of a low beam headlight bulb should be performed by
your dealer.
ᤳ2: Replacement of a light bulb should be done by your dealer.Battery
Capacity 12 V－65AH/5 HR
12 V－76AH/20 HR
Fuses
Interior See page 571 or the fuse label attached
to the inside of the fuse box lid.
Rear See page 570 or the fuse label attached
to the inside of the fuse box lid.
Under-hood See page 569 and 570 or the fuse box
cover.
Engine
Type Water-cooled, 4-stroke SOHC VTEC V6
gasoline engine
Bore x Stroke 3.54 x 3.78 in (90.0 x 96.0 mm)
Displacement 223.5 cu-in (3,664 cm
3)
Compression ratio 11.2 : 1
Spark plugs DENSO:
NGK:SXU22HCR11S
ILZKR7B11S
Alignment
Toe-in Front 0.00 in (0.0 mm)
Rear 0.08 in (2.0 mm)
Camber Front－0°30’
Rear－0°30’
Caster Front 4 ° 12’
Specifications
579
Technical Information

Brakes
Anti-lock Brakes (ABS)
...........
461
Break-in, New Linings
.............
422
Fluid
.......................................
525
Parking
...................................
164
System Design
........................
461
System Indicator
...............
69, 564
Wear Indicators
.......................
461
Braking System
..........................
460
Break-in, New Vehicle
................
422
Brightness Control,
Instruments
............................
133
Bulb Replacement
Back-up Lights
................
531, 532
Front Parking Lights
...............
529
Front Side Marker Lights
........
529
Headlights
..............................
527
High-mount Brake Light
.........
533
Rear Bulbs
..............................
531
Rear License Plate Lights
........
533
Specifications
..........................
579
Taillights
.................................
531
Bulbs, Halogen
..........................
527C
Capacities Chart
.........................
578
Carbon Monoxide Hazard
............
61
Cargo
.........................................
433
Cargo Hooks
..............................
437
Cargo, How to Carry
..................
433
Carrying Cargo
..........................
433
CAUTION, Explanation of
.............
iv
CD Care
.....................................
247
CD Error Messages
...................
246
CD Player
..................................
235
Certification Label
......................
576
Chains, Tires
..............................
546
Changing a Flat Tire
..................
551
Changing Oil
How to
....................................
518
When to
..................................
507
Charging System
Indicator
...........................
69, 562
Checklist, Before Driving
...........
441
Childproof Door Locks
...............
141
Child Safety
..................................
40
Booster Seats
...........................
58
Child Seats
....................
45, 46, 48Important Safety Reminders
.....
44
Infants
......................................
45
Larger Children
.......................
57
LATCH
.....................................
50
Risks with Airbags
...................
41
Small Children
.........................
46
Tethers
....................................
54
Warning Labels
........................
42
Where Should a Child Sit?
........
41
Child Seats
.............................
40, 48
LATCH Anchorage Points
........
50
Tether Anchorage Points
.........
54
Cleaning the Seat Belts
..............
534
Client Service Information
..........
594
Climate Control System
.............
182
Clock
..........................................
309
Code, Audio System
...................
308
CO in the Exhaust
................
61, 587
Cold Weather, Starting in
...........
442
Collision Mitigation Braking
System™(CMBS™)
...............
463
Compact Spare Tire
....................
550
Compass Operation
....................
342
Console Compartment
...............
175
Consumer Information
...............
594
Controls, Instruments and
............
65
IndexII

Coolant
Adding
....................................
520
Checking
................................
427
Proper Solution
.......................
520
Temperature Gauge
.................
78
Crankcase Emissions Control
System
...................................
587
Cruise Control Indicator
...............
75
Cruise Control Operation
...........
345
Cruise Main Indicator
..................
75
Cup Holders
...............................
174
Customize Settings
......................
90
D
DANGER, Explanation of
..............
iv
Dashboard
...............................
3, 66
Daytime Running Lights
............
130
Dead Battery
..............................
558
Defogger, Rear Window
.............
132
Defrosting the Windows
............
186
Dimensions
................................
578
Dimming the Headlights
............
128
Dipstick
Automatic Transmission
.........
523Engine Oil
...............................
427
Directional Signals
...............
71, 128
Disc Brake Wear Indicators.......
461
Disc Care
...................................
247
Disc Changer
.............................
203
Disc Changer Error
Messages
...............................
211
Disc Player
..........................
203, 235
Disc Player Error Messages......
246
Disposal of Used Oil
...................
519
Doors
Childproof Door Locks
............
141
Indicator
...................................
12
Locking and Unlocking
...........
140
Lockout Prevention
.................
141
DOT Tire Quality Grading (U.S.
Vehicles)
................................
581
Driver and Passenger Safety
..........
5
Driving
.......................................
439
Economy
.................................
428
Driving Guidelines
.....................
440
Driving Position Memory
System
...................................
168
Driving with the Paddle
Shifters
...................................
447
Dust and Pollen Filter
................
534DVD Player
................................
313
DVD Player Error Messages
......
337
E
Economy, Fuel
...........................
428
Emergencies on the Road
..........
549
Battery, Jump Starting
.............
558
Brake System Indicator
.....
69, 564
Changing a Flat Tire
...............
551
Charging System
Indicator
........................
69, 562
Checking the Fuses
................
566
Driving with a Flat Tire
...........
551
Hazard Warning Flashers
.......
132
Jump Starting
..........................
558
Low Oil Pressure
Indicator
........................
69, 562
Malfunction Indicator
Lamp
.............................
69, 563
Opening the Fuel Fill Door
Manually
.............................
572
Overheated Engine
.................
560
Towing
....................................
572
Emergency Brake
......................
164
CONTINUED
Index
III
INDEX

Octane Requirement
...............
422
Tank, Refueling
.......................
424
Gas Station Procedures
..............
424
Gauges
Engine Coolant Temperature
...
78
Fuel
..........................................
78
Speedometer
............................
78
Tachometer
..............................
78
GAWR (Gross Axle Weight
Rating)
...................................
488
GCWR (Gross Combined Weight
Rating)
...................................
488
Gearshift Lever Positions
Automatic
Transmission
...............
443, 444
Glove Box
..................................
175
Gross Axle Weight Rating
(GAWR)
.................................
488
Gross Vehicle Weight Rating
(GVWR)
.................................
488
GVWR (Gross Vehicle Weight
Rating)
...................................
488H
Halogen Headlight Bulbs
...........
527
Hazard Warning Flashers
..........
132
Headlights
.................................
128
Aiming
....................................
527
Automatic Lighting Off
............
131
Daytime Running Lights
.........
130
High Beam Indicator
................
74
High Beams, Turning on
.........
128
Lights On Indicator
..................
74
Low Beams, Turning on
..........
128
Reminder Chime
.....................
129
Replacing Halogen Bulbs
........
527
Turning on
..............................
128
Washers
..................................
127
Headphones
...............................
338
Head Restraints
..........................
150
Heated Mirror
............................
167
Heaters, Seats
............................
157
Heating and Cooling
..................
182
High Altitude, Starting at
............
442
High Beam Lever
................
128, 129
High-Low Beam Switch
..............
128HomeLink
®Universal
Transceiver
............................
363
Hood, Opening and Closing
the
..........................................
426
Horn
......................................
4, 125
I
Identification Number,
Vehicle
...................................
576
Ignition
Keys
........................................
136
Switch
.....................................
139
Timing Control System
...........
588
Immobilizer System
...................
138
Important Safety Precautions
.........
6
CONTINUED
Index
V
INDEX