2011 fiesta won’t start after disconnecting battery

[SimonC1976]

Any idea why my wife’s fiesta won’t start. battery went flat so I jumped it and ran it hard for 10 miles. When I trued restarting it nothing. I replaced the battery and now doesn’t even attempt to turn over. Any help would be great. 

[MarksST]

Are you able to check the battery voltage?

Haven’t done something like this,lol.

[SimonC1976]

Defiantly haven’t done that. Nothing to check voltage with but it was band new. Thought maybe it had imobalised itself due to removing the battery

[Jimpster]

Quote

 

is the immobiliser light on ??????? if so resetting may be an option.

dependant on mk google reset procedure.

 

[SimonC1976]

Ok I’ll give it a try. Red light in centre of dash flashing?

[Jimpster]

yep immobiliser active

 

[SimonC1976]

1 hour ago, JImpster said:

yep immobiliser active

 

New problem. How do you reset that

[Jimpster]

google will tell you dependant on Mk 4,5,6,7,8, etc

generally inserting key turn 1 click and wait or thereabouts 

maybe a new fob battery while your at it