Mechanics

HOW TO RESET AN EA FAIRMONT CAR ALARM THAT WAS WORKING AND NOW DOESN'T SEEM TO BE.

1990 Ford Ghia • 340,000 miles

If you disconnect the battery and then reconnect it, the alarm then activates. You can then deactivate it with the remote thats fine, but then if you leave it for any length of time unactivated after that and then try to activate it, the central locking locks the doors, but the lite on the dash remains on and continuously glows instead of flashing and the indicators dont flash at all, as they would normally if activating correctly.

If you do arm the system at any time after reconnecting the battery, and then enter via the key and turn the car on, neither the alarm or the immobilizer activates, the car will start efficiently with no problem.

The lite on the dash will only flash if you immediately arm the system after you reconnect the battery, but it does not seem to arm the system or the immobilizer.

Do I need to reset the alarm? And where is the factory alarms 'black box' situated, under the dash? I really do not want to remove the alarm, unless it is as a last resort.

Any help would be appreciated. Thank You

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Nizharni
September 15, 2012.




Most factory system allows the key to bypass the security and immobilizer system when the door is opened with key or ignition is turned on, especially for the earlier models so I don't see any problem with your system.

The alarm has outlived itself but it is still not ready to give up yet. Why do you keep disconnecting the battery?

KHLow2008
Sep 15, 2012.
The car was originally my fathers I inherited it after he died, but it always had a problem with running the battery flat, so they were forever recharging it, so they would disconnect it at night, every nite.

Since I've been driving it 12 months, I don't disconnect the battery nightly, but then the last 3 months the alarm seems not to be working correctly, in fact during testing it only will go off after you re-connect the battery, and the immobolizer doesn't seem to be working at all. It used to work perfectly a few months ago.

So there is not other way to reset the alarm then?

Thank you for your help KHLow2008 any other ideas?

Tiny
Nizharni
Sep 22, 2012.
I don't have any information on the security system for your vehicle so I am not able to offer much.

1. Ensure all door ajar indicator switches are working correctly.
2. If the battery is still being drained, you would need to check for the cause, which could be related to this.
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KHLow2008
Sep 22, 2012.

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