To re-enable the domelights to turn on when a door is opened,
seperate the blue male and female single wire connectors on the
passengers side of
the car under the glove box. Then disconnect the negative terminal from
battery, leave it disconnected for a couple minutes, and reconnect. The
option should now be disabled.
Note: A pair of pliers may be useful to seperate
the connectors, they can be very stubborn and not want to pull apart
one another easily. If you get desperate, cutting the single black wire
out of the connector will work as well. Make sure to tape up the
ends if you choose this route.
Also note that it if the vehicle's battery is not disconnected after
the dark mode connectors are seperated, the lcm will typically exit
dark mode too. But it will take countless door open/close events until
the domelight mysteriously springs to life. And even this will vary
depending on which software version your lighting computer runs on.
It is also possible to refresh the lcm's keep alive memory by
pulling fuses instead of disconnecting the battery, but the power
distribution systems varies in crown vics depending on model year and
the lcm is also fed off of a couple different circuits. So you'd have
to pull more than one fuse, and which fuses to pull would also vary.
Hence, the suggestion to disconnect the vehicles battery which
effectively removes all the fuses in one quick step.
This article is only relevant to 1995 through 2004 crown
interceptors, the connector in question is not present on earlier
1994 and prior crown vics use a conventional parallel/series wiring
for domelight illumination. 1995 and later use a lighting control
and the domelights can be disabled on the 2005 and earlier crownvics by
grounding one of the LCM pins
is not desirable for the courtesy lights to illuminate when a door is
Note the 2005
crownvics still have a dark car connector, but it is
located in a different
location. Starting in the 2006 model year,
the dark car option is enabled/disabled using the ford
ids laptop and vcm to connect to your vehicle and electronically
alter the module preferences inside the lcm. Unfortunetly, for most
crown vic owners this will mean a trip to your local ford dealer's service
department. However, if you are a large volume shop, regularly want
to be able to toggle the dark car feature, and can justify spending a
few thousand dollars, you can purchase a vcm and the ids software
subscription from www.motorcraftservice.com.
For some screenshots of a 2008 ford crown victoria police interceptor
having the domelights enabled with the ford ids scantool, click here.
Note: Instead of conventional pin switches on the door jamb, 1995
crown vics use a door ajar switch located inside the door on top of the
mechanism. Is not uncommon for these switches to fail and short to
so domelight illuminates constantly and will not shut off. Also, some
departments cut the wire running to the drivers door ajar switch since
disables the key in ignition buzzer and parking light reminder buzzer.
See the door latch article for further
details on this topic.
A few crown vic owners have asked how to retrofit the dark car
onto their civilian models. Below are a few solutions: