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Matt, Engineer
Category: UK Ford
Satisfied Customers: 21632
Experience:  BEng hons Mech engineering, in auto industry 23 years
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My 13 plate Ford Fiesta has died and comes up with

Customer Question

Hi my 13 plate Ford Fiesta has died and comes up with immobiliser malfunction and won't start
Submitted: 1 year ago.
Category: UK Ford
Expert:  Matt replied 1 year ago.


1st thing to try is check that the main battery is fully charged as a low voltage will stop the immobiliser from working properly

Check battery voltage with either a multimeter OR a.) hold RESET button on left stalk, while holding turn on to ignition 2, wait, scroll through menu options with reset until you see battery voltage... should be above 12v with engine off, and 14v+ with engine on

What happens when you try to crank the engine over, any ticking or dimming of dash

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