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Lurch, Aftermarket & Factory Electronics
Category: Car
Satisfied Customers: 20798
Experience:  Ford, Chev Cert, Heavy Line Mech, Mobile Electronics.Sales, Installation & Repair for 30 years.
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disconnected..theft alarm system sounded off..After a few minutes

Resolved Question:

I disconnected the positive battery terminal to clean it. When I connected it the theft alarm system sounded off. After a few minutes it quite but the car would not start. There is a red light blinking in the middle of the dash. 1991 Mazda Miata
Submitted: 7 years ago.
Category: Car
Expert:  Lurch replied 7 years ago.



If this is the Factory Alarm, you should be able to DisArm by turning the Driver or Passenger Door Key Cylinder to Unlock or Unlocking Doors with Factory Remote.

If not there may be a problem with the Security System.



Be sure the Battery is fully charged.
Disconnect Positive Battery Cable.
Open Driver Door & LEAVE Open.
Turn Ignition to ON (run) position & LEAVE On.
Reconnect Positive Battery Cable.
Alarm may sound for a few seconds.
Start vehicle.


If none of the above work, you may have a Aftermarket Alarm & need to find the Valet Switch / Button which is typically located under Driver Dash, could be Red Light, or could be part of the Alarm Antenna.
Once the Valet Switch / Button is found, push in & hold for apprx 5 seconds or until the flashing lite stays on or off


Otherwise, you may have to find the Alarm Unit & find the wires that is preventing the vehicle from starting

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