DTC CEM-B14DE - Key System Programming Failures

[jdhx]

Anyone any knowledge of this DTC

CEM-B14DE - Key System Programming Failures- - System Programming Failures

I have had problems with the keyless entry and I suspect this is related.

I have successfully programmed a new key but I can't try to reproduce the fault because I am wary of deleting all keys in case the reprogramming fails

Thanks