Hi Phil,
This may be a wild guess or you may find I'm absolutely right.
Remove the storage drawer from under the front passenger seat. Behind the seat crossmember is a big multiplug that is probably sitting in a puddle and looking green. Proceed with care and take photos before disturbing it! If you pull it around too much you will have little idea what wire goes where and they are not all colour to colour, you have been warned .
To repair it successfully you would be advised to remove the passenger seat, lift the carpet and remove the false floor panels for access.
Shaun