Congrats!nice job.
After replacing the DS1213 with a new NVRAM in my CSA803 (I replaced one DS1213 only )
I rebooted it 3 times to get rid of the self test failure.
1st time:same err E5322
2nd time:Battery error,but can exit diagnostic and enter operational screen.
subsys --------------block------------area------------routine
Timebase -----TBC control------ Static RAM -----Battery
3rd time:passed self test.