The imobilization and remote functions are unrelated. The imobilization is hard coded and can't be programmed or paired. The remote function you can program into the key.

Did you have times when a key would only work after a couple tries ? The symptom you are hoping for is key that works but not always. If it just stopped working one day and never worked after it's less likely the switch and something in the EWS.

Also somebody meant fusible link but meant the BST battery safety terminal that explosively disconnects the high amp battery cable but you said you jumpered the starter solinoid which indicates the BST is good.

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2011 E70 • N55 (me)
2012 E70 • N63 (wife)