The problem started a few months back, central locking stopped working then I started having the red flashing light when trying to start the car and the car wouldnt start. Managed to trace this down to the brown 5 fuse for central locking (it was quite corroded) so I cleaned the fuse up. Its been find for a few months since then, but its started happening again, fuse looks fine? Its getting quite annoying now where I cant start the car for up to 5 minutes at times waiting for the immobiliser to sort itself out.
Is there anything iv missed or should look at?