Can not view the state of the access doors through the keypad with Command 51.
D8112A must be a revision 600/600 or newer.
Also check the following programming prompts.
MAIN : 82 Cmd 99 Blank (no entry) = Command bar is not restricted and will operate normally.
AUX : 7.1 Cmd51 Y = Command 51 enabled to view and control access doors.
*Passcode in Combo group 8 must be used .
Part number D8112A