Page 82 of 256

3. Cycle the ignition from the 4 (ON) to the 3 (OFF) position.
4. Press the power door unlock control three times.
5. Turn the ignition to the 4 (ON) position. The doors will lock and
unlock.
6. With the ignition still in the 4 (ON) position, press the unlock control
twice.
7. After a five to ten second delay, the door locks will cycle lock/unlock
to confirm successful programming.
8. After having waited the necessary time for the programming to
confirm, turn the ignition to the 3 (OFF) position.
Sounding a panic alarm
Press
on the remote transmitter to activate the alarm.Note:The
panic alarm only works with the ignition in the 1 (OFF/LOCK) position.
Press
a second time to deactivate the alarm. You may also
deactivate the alarm by turning the ignition to the 2 (ACCESSORY) or 3
(ON) position.
Opening the trunk
Pressonce to open the trunk.
•Ensure that the trunk is closed and latched before driving your
vehicle. Failure to properly latch the trunk may cause objects to fall
out or block the driver’s rear view.
This feature will not work with the transmission out of P (Park) or N
(Neutral) if the ignition is in either the 2 (ACC) or 3 (ON) position.
Replacing the battery
The remote entry transmitter uses one coin type three-volt lithium
battery CR2032 or equivalent.
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Locks and Security
82
Page 189 of 256
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
112 30A** Air suspension compressor
113 — Not used
114 — Not used
115 — Not used
116 — Not used
117 — Not used
118 — Not used
201
1 2ISO relay A/C clutch
202 — Not used
203
1 2ISO relay Ignition coil
204
1 2ISO relay PCM
205 — Not used
206
1 2ISO relay Fuel
207 — Not used
208 — Not used
209
1 2ISO relay Horn
301 Full ISO relay Starter
302 Full ISO relay Air compressor
303 Full ISO relay Blower
304 Full ISO relay Power windows relay (RUN/ACC)
501 Diode A/C clutch
502 Diode PCM
503 Diode Horn, Door latch
601 20A Circuit
breakerPower seats, Lumbar, Decklid
602 20A Circuit
breakerPower windows relay feed
(RUN/ACC)
* Mini fuse ** Cartridge fuse
Relays
Relays are located in the power distribution box and should be replaced
by qualified technicians.
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Roadside Emergencies
189
Page 243 of 256

Item Ford part
nameFord part
numberFord
specification
Hinges, latches,
striker plates,
fuel filler door
hinge and seat
tracksMulti-Purpose
GreaseXG-4 or XL-5 ESB-M1C93-B
Lock cylinders Motorcraft
Penetrating and
Lock LubricantXL-1 none
Power steering
fluidMotorcraft
MERCONAT FXT-2-QDX MERCON
Automatic
transmission
(4R70/75 E-W)Motorcraft
MERCONV
AT F
3
XT-5-QM
MERCONV
Rear Axle
Lubricant
2Motorcraft SAE
80W-90
Premium Rear
Axle LubricantXY-80W90-QL WSP-M2C197-A
Windshield
washer fluidMotorcraft
Premuim
Windshield
Washer
ConcentrateZC-32-A WSB-M8B16–A2
1Use only brake fluids certified to meet Ford specifications. DOT 3 fluid
is recommended. However, if DOT 3 is not available, DOT 4 fluid can be
used.
2Add 4 oz. (118 ml) of Additive Friction Modifier XL–3 or equivalent
meeting Ford specification EST-M2C118-A for complete refill of
Traction-Lok rear axles.
3Ensure the correct automatic transmission fluid is used. Transmission
fluid requirements are indicated on the dipstick or on the dipstick
handle. MERCONand MERCONV are not interchangeable. DO NOT
mix MERCONand MERCONV. Refer to yourscheduled maintenance
informationto determine the correct service interval.
2005 Grand Marquis(grn)
Owners Guide (post-2002-fmt)
USA(fus)
Maintenance and Specifications
243