Bonsoir,
ta macro, indentée, et un peu arrangée, mais sans border les risques de la manoeuvre...
Sub t()
Const constant As Integer = 2
Dim C%, L%, Lcellactive%, Ccellactive%
Lcellactive = ActiveCell.Row - 1
Ccellactive = ActiveCell.Column - 1
For C = 1 To constant
For L = 1 To constant
Select Case Cells(Lcellactive + L, Ccellactive + C)
Case "pls"
MsgBox "c bien"
Case Else
MsgBox "c nul"
End Select
Next L
Next C
End Sub