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12 plate 1.6TDCI - keyless ignition - car alarm goes off several times, went to reset with the key fobs nothing. No indicator flash as normalwhen I open the or close the car. Changed both fob batteries but had to gained entry with the key. There is no power to anything in the car, pressed the clutch and pressed the star button and nothing. The dash red ! warning light is flashing constantly. Strangely the sun visor mirror lights work. Never had this issue before.
 

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It's the car battery the alarm will go off below 11 volts so as your battery loses charge and goes below 11 volt the alarm thinks some one has disconnected the battery to stop the alarm going off but it has it's own back up alarm.
 

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It's the car battery the alarm will go off below 11 volts so as your battery loses charge and goes below 11 volt the alarm thinks some one has disconnected the battery to stop the alarm going off but it has it's own back up alarm.
Thank you for the info you are right, I had it checked. Result new battery after all it was the original Ford installed battery from 2012.
 
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