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Peugeot 306 - Peugeot 306 Battery Change Car Wont Start - Fas702

Hi All,

I have a peuogot 306 2000 "X" plate automatic. Had it for a few years. Tried to change battery in Key fob (CR1620 battery). Being stupid, I assumed I could just change battery and start using. No it didnt !

Tried to start car after manually opening doors, but wouldnt start. Got spare keys that had no battery in it and started fine.

Have tried the re-programming technique of switch off ignition, put in Accessory or Ignition mode - press large button and start - no luck. Even tried taking battery out and try to start - no luck. Only starting with spare key - which has no battery in it.

Its the Mrs car - and being her - she wants to use the remote! Any ideas how I can get the remote key working otherwise my life will continue to be a pain.

Cheers all,

Peugeot 306 - Peugeot 306 Battery Change Car Wont Start - Peter.N.

You haven't lost the identification chip from inside the fob when you were changing the battery?

Peugeot 306 - Peugeot 306 Battery Change Car Wont Start - Fas702

Nope, still have that. Does that help ?

Peugeot 306 - Peugeot 306 Battery Change Car Wont Start - Fas702

Can I use the reference to get it reset - any help would be appreciated?

Peugeot 306 - Peugeot 306 Battery Change Car Wont Start - elekie&a/c doctor

The battery in the key is for the locking system only. There is no reset procedure for the immobiliser system.It is passive operation,it either works or doesn't work.Sounds like something on the circuit board may have been damaged.

Peugeot 306 - Peugeot 306 Battery Change Car Wont Start - Gibbo_Wirral

It sounds to me like the ID46 chip has been lost during battery swap.