My 2005 Ford Crown Victoria Police Interceptor has an intermitant beep unless the fan mode is in vent or mix.

Asked by Jul 29, 2016 at 11:29 PM about the 2005 Ford Crown Victoria Police Interceptor

Question type: Maintenance & Repair

This doesn't happen all the time, it can be fine and then suddenly start and I change the fan mode and it goes away. Sometimes I can put it right back into the other fan mode and there is no noise, other times it comes right back on.

4 Answers

16,325

Check and see if your air bag light is working or not. It (the LCM) will beep about 4 or 5 times if the bulb burns out. If the bulb is loose in the socket the fan may be causing it to become unseated temporarily. A similar question to yours answered here: https://www.cargurus.com/Cars/Discussion-t51687_ds584669

I read the other problem and that's why I wrote in here and I'm hoping someone might know what's up with my car, My air bag light does work and the sound is only in certain fan modes and not all the time but when I do get the noise I can turn the mode to vent and it comes off immediately, but if I leave the mode in off for example even after I shut the car off the beep continues. When the beep is going it is steady nonstop, and it almost sounds like a whistle. I hope this additional information is helpful and thanks for your help.

16,325

The only tone generator I'm aware of it the LCM (light control module). You may have a faulty LCM, or one of the circuits it monitors is showing signs of a fault. One of those circuits, and the one usually responsible for those mystery beeping complaints, is the air bag circuit. Just to eliminate the air bag, as a culprit, here is a section from the owner's manual: "air bag diagnostic monitor will turn on its internal tone generator (beeper). The beep pattern is five sets of five beeps. The pattern is repeated every 30 minutes while the ignition switch is in RUN position." If that is NOT the sound you here, but it is coming from the center of the dash, and is NOT the radio, it is still most likely to be coming from the LCM.

16,325

small correction, air bag diagnostic monitor is it's own module and also has a tone generator. If you are certain the sound isn't that of the air bag warning, it seems more likely a problem with the LCM, especially being an ex-police car.

Your Answer

Add photo

Related Questions

Crown Victoria

Looking for a Used Crown Victoria in your area?

CarGurus has 1,493 nationwide Crown Victoria listings starting at $2,900.

ZIP:

Search Ford Crown Victoria Questions

Ford Crown Victoria Experts

#1 Tracy Hooks
Tracy Hooks
Reputation 1,640
#2 Tom Demyan
Tom Demyan
Reputation 820
#3 FordNut
FordNut
Reputation 800
View All

Related Models For Sale

Used Mercury Grand Marquis
34 Great Deals out of 2,243 listings starting at $1,500
Used Dodge Charger
521 Great Deals out of 29,008 listings starting at $2,275
Used Lincoln Town Car
41 Great Deals out of 2,138 listings starting at $1,999
Used Ford Mustang
682 Great Deals out of 38,456 listings starting at $1,963
Used Chevrolet Impala
928 Great Deals out of 36,398 listings starting at $1,800
Used Ford Taurus
356 Great Deals out of 22,363 listings starting at $1,499
Used Ford Explorer
1,448 Great Deals out of 72,827 listings starting at $985
Used Ford F-150
3,363 Great Deals out of 205,120 listings starting at $1,273
Used Chevrolet Tahoe
1,070 Great Deals out of 31,943 listings starting at $1,495
Used Toyota Camry
1,442 Great Deals out of 100,210 listings starting at $700
Used Chrysler 300
490 Great Deals out of 20,895 listings starting at $1,500