Interest can continue to be charged but at no higher rate than the initial cost cap (calculated per day on the outstanding principal and fixed default charges). (fca.org.uk)
And of course by default the Charge 2 will show the current time / date. (gogi.in)
If the wiring to the PCM is OK (I have no reason at this moment to think that the PCM is the cause) and the alternator is in default charging mode. (mechanics.stackexchange.com)