since I replaced the battery on my citreon van 07 plate the imobilizer light keeps coming on therefore the van wont start an auto mechanic came round he says the keys have lost its codes I don't know what to do now please help me if you can
Try this - I assume your Citroen "Van" is a Berlingo. Otherwise search on the right name.
http://bit.ly/1NvekXV
XXX, April 2016
If that is the case then the only way is to get it onto the correct computer/code reader to code in your keys. You will need the security code relating to your vehicle to enable this.
