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Q: reset theft alarm

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i replaced the cluster on my 1999 ford mustang and disconnected the battery. when i connected everything the theft light were flashing and car wont start, the motor is just swinging. i need to know how to reset the theft alarm for the car to start

My car has 80273 miles.
My car has an automatic transmission.

If your alarm is OEM, resetting instructions and in most cases, the service itself; is provided by the manufacturer through a dealership or authorized repair center. You might want to call your local Ford dealership for details on how to complete this step; as it’s usually done at the dealership by resetting the ECU.

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