1996 Crown Victoria Keyless Entry Wiring

i am trying to install keyless entry in a 1996 ford crown victoria.  i have found unlock and lock wires as well as 12V constant, but do not know which wires are the lock and unlock motor wires(b/c there was no keyless entry prior, it should be a 5wire, right?).  also, i am too familiar with relays, so what is the best way to supply the 12v to the relays(the wiring diagram shows many wires in parallel).  should 4 wires be tapped into a 12v wire?  thanks

once you cut the wire the switch side will show voltage when the switch is used, the motor side will not....

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Kevin Gerry
Certified Electronics Technician
MECP First Class Installer

Owner/Installer
Classic Car Audio
since 1979

You only need 1 FUSED 12 volt Wire from Constant source and wire Relays to that:

2 SPDT RELAYS:

Cut LOCK  & UNLOCK Wire in Half.
One Half goes to SWITCH
One Half goes to ACTUATOR

Relay 1

LOCK:
PIN 87 =  12 Volts ( + ) Constant
PIN 87a =  wire from Door Lock Switch
PIN 30 =  wire to Actuator
PIN 85 = Negative Lock Output from Alarm
PIN 86 = Constant 12 volt ( + )

Relay 2

UNLOCK:
PIN 87 =  12 Volts ( + ) Constant
PIN 87a =  wire from Door UnLock Switch
PIN 30 =  wire to Actuator
PIN 85 = Negative Lock Output from Alarm
PIN 86 = Constant 12 volt ( + )

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MO

Don't Learn from Others Mistakes
You Might Be the One That Knows.

mo12v's setup is correct.

The base model Crown Vics and Grand Marquis still (even the 2005!) don't come with factory keyless, so I've done many of them for the local Lincoln-Mercury dealer.

--Take the rubber boot for the driver's door, unsnap it, and stuff it into the driver's door as deep as you can.

--In there, the lock motor is pink / YELLOW; unlock motor is pink/green.

--When using mo's diagram, when you cut the motor wires in half, tread the side of the wire coming from the door as the "actuator" and the side of the wire coming from the car's body as the "switch".

--mo already said this, but DO NOT FAIL to use a fuse on your power source, especially since you're not familiar with relays and you might make a mistake. 15 or 20 amps is fine. I used a 10-amp fuse on a Grand Marquis once, and the car came back.

--There are several plugs in the driver's kick panel. If you test all the wires there, you will find constant power, and ignition-switched power if you need that.

--If you undo the two 10mm bolts holding the hood release in, you can reach behind the rubber to get your wires into the doorboot. There is also a spot in there where you could put the relays and/or the keyless brain.