Ford Galaxy start engine problem with one of the keys

[stoyan]

Hi,
Recently i broth second hand Ford Galaxy 1999 year,petrol engine 2000cc.
The owner handed to me 3 keys-one for opening the doors,one Master key for start engine and one for remote unlocking and start the engine.The last mentioned key didn't work due to weak batteries.When i replace the batteries,remote Lock and Unlock system was operating normal,but when I attempt to start the engine did not work.There is system to protect the car against theft and the Master key override it.Now i am caring bunch of keys for the car Is there any thing i can do to use one key only(for remote Lock/Unlock)Normally should work with it but it does not!?

[Graham M]

By the sounds of it, he's had 1 or more locks replaced in its life but not the whole set at once

[AbyssUnderground]

They key you replaced the batteries in will probably have to be reprogrammed. Do a quick google search on how to do it. Its usually quite simple and just involves using the different keys and putting them in/removing them at the right times based on a flashing light on the dashboard or something! Sounds complicated but with instructions it should be a doddle.

[stoyan]

I have done something similar with procedure like you said but still does not work.I think the steps i used are not for my type of key.On the side of the key is "Siemens" logo and i think the product is developed by Siemens.Does some body know how to program this type of immobilizer?