Eco Mode reset

I'm sure its been covered before if so can someone send me the link

Changed the cover on the one and only key me 54 plate car has now it flashes Eco Mode and will not start turns over fine and fast battery at 12.5 +

Is there a process to go through to reset this .

Bringatrailer wrote:I'm sure its been covered before if so can someone send me the link

Changed the cover on the one and only key me 54 plate car has now it flashes Eco Mode and will not start turns over fine and fast battery at 12.5 +

Is there a process to go through to reset this .

Hi Bringatrailer

Eco mode clears when you start the car - eco mode is not a fault.

Turn over and no start after a fob change is due to the immo chip not being swapped over or not fitted correctly in the new fob or old fob with its new battery.

Pictures of the fob parts including the immo chip (PCF7936AS/ 'ID46' 'Crypto II' 'HITAG2')is in this topic (here).