Mercury Grand Marquis 2009 s Service Manual

HEADLAMP CONTROL
Turns the lamps off.
Turns on the parking
lamps, instrument panel lamps,
license plate lamps and tail lamps.
Turns the headlamps on.
Autolamp control (if equipped)
The autolamp system provides light
sensitive automatic on-off control of
the exterior lights normally
controlled by the headlamp control.
The autolamp system also keeps the
lights on for a predetermined period
of time after the ignition switch is
turned to off. The delay period can
be adjusted up to a maximum of
approximately three minutes in
duration.
•To turn autolamps on, rotate the control counterclockwise to the next
position from off.
•To turn autolamps off, rotate the control clockwise.
The headlamps will also turn on when the wipers are turned on.
To change the duration of the autolamp delay, perform the following
sequence:
Note:Steps 2 through 5 must be carried out within a 10 second period.
1. Start with the ignition switch in the off position and the headlamp
switch in the autolamp position.
2. Place the headlamp switch in the off position.
3. Place the ignition switch in the on position and then back to off.
4. Place the headlamp switch in the autolamp position.
•At this point, the exterior lamps turn on.
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5. At the desired autolamp time delay, place the headlamp switch in the
off position.
•At this point, the exterior lamps turn off and the time delay is set.
Fog lamp control (if equipped)
With the ignition on, the fog lamps
can be turned on when the
headlamp control is pulled toward
you and is in any of the following
positions:
•Parking lamps
•Low beams
•Autolamps (when active)
Fog lamps will turn off when the
high beams are activated.
High beams
Push the lever toward the
instrument panel to activate. Pull
the lever towards you to deactivate.
Flash to pass
Pull toward you slightly to activate
and release to deactivate.
Daytime running lamps (DRL) (if equipped)
Turns the headlamps on with a reduced output. To activate:
•the key must be in the on position,
•the headlamp control is in the off or
position.
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•the vehicle is not in P (Park)
WARNING:Always remember to turn on your headlamps at
dusk or during inclement weather. The Daytime Running Light
(DRL) System does not activate your tail lamps and generally may not
provide adequate lighting during these conditions. Failure to activate
your headlamps under these conditions may result in a collision.
PANEL DIMMER CONTROL
Use to adjust the brightness of the
instrument panel during headlamp
and parking lamp operation.
•Rotate the thumbwheel from left
to right to brighten the
instrument panel.
•Rotate the thumbwheel from right
to left to dim the instrument
panel.
Dome lamp control
The panel dimmer control also controls the dome lamp operation.
•Rotate the thumbwheel fully to the right, past detent, to activate the
dome lamp.
•In order to turn off the dome lamp, rotate the thumbwheel to the left.
AIMING THE HEADLAMPS
The headlamps on your vehicle are properly aimed at the assembly plant.
If your vehicle has been in an accident, the alignment of your headlamps
should be checked by your authorized dealer.
Vertical aim adjustment
1. Park the vehicle directly in front of a wall or screen on a level surface,
approximately 25 feet (7.6 meters) away. Check your headlamp
alignment at night or in a dark area so that you can see the headlamp
beam pattern.
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•(1) 8 feet (2.4 meters)
•(2) Center height of lamp to
ground
•(3) 25 feet (7.6 meters)
•(4) Horizontal reference line
2. Measure the height of the
headlamp bulb center from the
ground and mark an 8 foot
(2.4 meter) horizontal reference line
on the vertical wall or screen at this
height (a piece of masking tape works well).
3. Turn on the low beam headlamps to illuminate the wall or screen and
open the hood.
4. On the wall or screen you will
observe an area of high intensity
light. The top of the high intensity
area should touch the horizontal
reference line, if not, the beam will
need to be adjusted.
To see a clearer light pattern for
adjusting, you may want to block
the light from one headlamp while
adjusting the other.
5. Locate the vertical adjuster on
each headlamp. Usinga4mm
wrench, turn the adjuster either
clockwise (to adjust down) or
counterclockwise (to adjust up).
The horizontal edge of the brighter
light should touch the horizontal
reference line.
6. HORIZONTAL AIM IS NOT REQUIRED FOR THIS VEHICLE AND IS
NON-ADJUSTABLE.
7. Close the hood and turn off the lamps.
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TURN SIGNAL CONTROL
•Push down to activate the left
turn signal.
•Push up to activate the right turn
signal.
The flash rate of the turn signal will speed up considerably if the left or
right turn lamp bulb (front or rear) is burned out.
Cornering lamps
When the turn signal is used and the headlamps are on, the cornering
lamps will light either the right or left side depending on the direction of
the turn.
INTERIOR LAMPS
Map/courtesy lamps
The courtesy lamps light when:
•any door is opened.
•the instrument panel dimmer
switch is rotated past the detent.
•the unlock control of the remote
entry controls is pressed and the
ignition is off.
The reading lamps can be turned on
by pressing the rocker controls next
to each lamp.
If equipped with remote keyless entry, the courtesy lamp will illuminate
whenever any door is opened and will remain on for 25 seconds after the
door is shut or when the ignition is turned to the on position.
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Rear courtesy/reading lamps (if equipped)
Rotate the lens to illuminate the
lamp. With the lens in the flat
position, the courtesy lamp lights
when:
•Any door is opened.
•The panel dimmer thumbwheel is
rotated fully to the right past
detent.
BULB REPLACEMENT
Lamp assembly condensation
Exterior lamps are vented to accommodate normal changes in pressure.
Condensation can be a natural by-product of this design. When moist air
enters the lamp assembly through the vents, there is a possibility that
condensation can occur when the temperature is cold. When normal
condensation occurs, a thin film of mist can form on the interior of the
lens. The thin mist eventually clears and exits through the vents during
normal operation. Clearing time may take as long as 48 hours under dry
weather conditions.
Examples of acceptable condensation are:
•Presence of thin mist (no streaks, drip marks or droplets)
•Fine mist covers less than 50% of the lens
Examples of unacceptable moisture (usually caused by a lamp water
leak) are:
•Water puddle inside the lamp
•Large water droplets, drip marks or streaks present on the interior of
the lens
Take your vehicle to dealer for service if any of the above conditions of
unacceptable moisture are present.
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Using the right bulbs
Replacement bulbs are specified in the chart below. Headlamp bulbs
must be marked with an authorized “D.O.T.” for North America and an
“E” for Europe to ensure lamp performance, light brightness and pattern
and safe visibility. The correct bulbs will not damage the lamp assembly
or void the lamp assembly warranty and will provide quality bulb burn
time.
Function Trade Number
Headlamp H13
Park, turn and sidemarker lamp (front) 3157 AK (amber)
Cornering lamp (front) 3156K
Tail, stop, turn and sidemarker lamp (rear) 3157K
Backup lamp 3156K
Fog lamp 9145
License plate lamp 168
High-mount brakelamp 912
Luggage compartment lamp 212-2
Rear reading lamp 578
Map lamp 906
Visor vanity lamp - Slide on Rail system
(SOR)A6224PF
Dual floorwell lamp 906
Glove compartment 168
All replacement bulbs are clear in color except where noted.
To replace all instrument panel lights - see your authorized dealer.
Replacing interior bulbs
Check the operation of all bulbs frequently.
Replacing exterior bulbs
Check the operation of all bulbs frequently.
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Replacing headlamp bulbs
To remove the headlamp bulb:
1. Make sure the headlamp control is in the off position, then open the
hood.
2. Remove the three pin type retainers and the radiator sight shield.
3. Remove the front parking lamp assembly. Refer toReplacing front
parking/cornering/turn signal lamp bulbsin this section.
4. Remove the headlamp retainer
bolts and the headlamp assembly.
5. Disconnect the electrical
connector.
6. Remove the old headlamp bulb by
rotating it counterclockwise and pull
it out.
7. To install, reverse the removal
procedure. (Re-aiming the headlamps
may be necessary. For additional
information, refer to the headlamp
aiming section in this chapter.)
WARNING:Handle a halogen headlamp bulb carefully and keep
out of children’s reach. Grasp the bulb only by its plastic base
and do not touch the glass. The oil from your hand could cause the
bulb to break the next time the headlamps are operated.
Note:If the bulb is accidentally touched, it should be cleaned with
rubbing alcohol before being used.
Note:The headlamp bulb should not be removed from the headlamp
until just before a replacement bulb is installed. Removing the bulb for
an extended period of time may affect headlamp bulb performance.
Contaminants may enter the headlamp where they can settle on the lens
and reflector. Never turn the headlamps on with the bulb removed.
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Replacing front parking/cornering/turn signal lamp bulbs
To remove the parking/cornering/turn signal lamp bulbs:
1. Make sure the headlamp switch is in the off position, then open the
hood.
2. Remove the three pin type retainers and the radiator shield.
3. Remove two nuts from the back
side of the lamp assembly, then pull
the lamp assembly away from the
vehicle.
4. Rotate the bulb socket
counterclockwise and remove it
from the lamp assembly.
5. Carefully pull bulb straight out of
the socket and push in the new
bulb.
6. To install, reverse the order of
the removal procedure.
Note:The parking lamp/turn signal bulbs should not be removed from
the lamp until just before a replacement bulb is installed. Removing the
bulb for an extended period of time may affect headlamp bulb
performance. Contaminants may enter the headlamp where they can
settle on the lens and reflector. Never turn the lamps on with the bulb
removed.
Replacing tail lamp/brake/turn lamp bulbs
The tail lamp, the brake lamp and the turn signal lamp bulbs are located
in the tail lamp assembly. Follow the same steps to replace either bulb.
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1. Make sure the headlamp switch is
in the off position, then open the
trunk, remove pin-type retainer and
carefully pull the carpet away to
expose the lamp assembly hardware.
2. Remove three nuts and the lamp
assembly from the vehicle.
3. Remove the bulb socket by
rotating it counterclockwise, then
pulling it out of the lamp assembly.
4. Pull the bulb from the socket and
push in the new bulb.
5. Install the bulb socket into the
lamp assembly by rotating it
clockwise.
6. Install the lamp assembly on the
vehicle with three nuts ensuring the
nuts are flush with the body to
prevent water from entering the trunk.
7. Carefully push the carpet back in to place and install the pin-type
retainer.
Replacing license plate lamp bulbs
1. Make sure the headlamp switch is
in the off position, then remove two
screws, grommets and the license
plate lamp assembly from the trunk
lid.
2. Carefully pull the bulb from the
socket and push in the new bulb.
3. Install the lamp assembly on the
trunk lid with two grommets,
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