Remote Key Fob

[C_U_Jimi]

My wife put her jacket into the washing machine along with her Aygo ignition key. It still starts the car and opens the doors manually but the remote function no longer works.

I want to open it up to check for water inside.

Does anyone know ..... if I open the key and remove the Battery, will that kill the manual operations? If it does kill it, is that a hefty fee from Toyota for re-coding?

Just had another thought while writing this. At the same time as the key was being washed, the Aygo Battery was disconnected to allow safe working in the engine compartment (New clutch fitted). Could the disconnection possibly have affected the remote sensor?

[another_pleb]

My wife put her jacket into the washing machine along with her Aygo ignition key. It still starts the car and opens the doors manually but the remote function no longer works.

I want to open it up to check for water inside.

Does anyone know ..... if I open the key and remove the battery, will that kill the manual operations? If it does kill it, is that a hefty fee from Toyota for re-coding?

Just had another thought while writing this. At the same time as the key was being washed, the Aygo battery was disconnected to allow safe working in the engine compartment (New clutch fitted). Could the disconnection possibly have affected the remote sensor?

I believe the key-fob has an RFID chip (like an Oyster card or similar) which doesn't require any power to work which allows you to disable the immobiliser to start the car even if the Battery is dead.

The key is designed to be periodically opened so that the Battery can be replaced. Checking for water damage shouldn't be a problem as long as you don't break anything or damage any wires or soldering inside.