Panasonic KX-T336 System Reference Manual page 501

2) After the diagnosis ends, "Complete" appears and waits for the
._
3
entry of the next command.
- OPR.
Test start +--
Al-T-MID PROGRAM
v Complete B
DIG>C]
Displayed Message
Displayed Message
Meaning
S-X+- Error. Illegal main command
There is an error in the main command.
++WM Error: Illegal sub command There is an error in the sub command.
13-D-7