VBA clear cells adjacent to the column if it is empty - excel

Question

I have 5 columns. If column 3 has no value, I want all other adjacent cells (column 1,2,4,5) to clear.
I got this from another site:
Sub ClearCust()
'Clears data in column if there is no Amt number next to it.
'Used in conjunction to fill blanks.
Dim j As Range
For Each j In Workbooks("OH Details_v1").Worksheets("Sheet1").Range("C2:D" & Worksheets("Sheet1").Range("a65536").End(xlUp).Row)
If j.Value = 0 Then
j.Offset(0, 1).ClearContents
End If
Next j
End Sub
But it only clears column C, D, E...

Answer 1

Something like this might be what you're looking for:
Sub ClearCust()
Dim wb As Workbook
Dim ws As Worksheet
Dim rLast As Range
'Set wb = Workbooks("OH Details_v1")
Set wb = ThisWorkbook
Set ws = wb.Worksheets("Sheet1")
Set rLast = ws.Range("A:E").Find("*", ws.Range("A1"), xlValues, , , xlPrevious)
If rLast Is Nothing Then Exit Sub 'No data
With ws.Range("C1:C" & rLast.Row)
.AutoFilter 1, "="
Intersect(.Parent.Range("A:E"), .Offset(1).EntireRow).ClearContents
.AutoFilter
End With
End Sub
EDIT:
To address your request of iterating over sets of columns to perform this same task, you can do something like this:
Sub ClearCust()
Dim wb As Workbook
Dim ws As Worksheet
Dim rLast As Range
Dim aClearAreas() As String
Dim i As Long
'Set wb = Workbooks("OH Details_v1")
Set wb = ThisWorkbook
Set ws = wb.Worksheets("Sheet1")
ReDim aClearAreas(1 To 3, 1 To 2)
'Define columns that will be cleared Define column within that range to evaluate for blanks
aClearAreas(1, 1) = "A:E": aClearAreas(1, 2) = "C"
aClearAreas(2, 1) = "F:J": aClearAreas(2, 2) = "H"
aClearAreas(3, 1) = "K:O": aClearAreas(3, 2) = "M"
'loop through your array that contains your clear area data
For i = LBound(aClearAreas, 1) To UBound(aClearAreas, 1)
'Get last populated row within the defined range
Set rLast = ws.Range(aClearAreas(i, 1)).Find("*", ws.Range(aClearAreas(i, 1)).Cells(1), xlValues, , , xlPrevious)
If Not rLast Is Nothing Then
'Filter on the column to be evaluated
With ws.Range(aClearAreas(i, 2) & "1:" & aClearAreas(i, 2) & rLast.Row)
.AutoFilter 1, "=" 'Filter for blanks
Intersect(.Parent.Range(aClearAreas(i, 1)), .Offset(1).EntireRow).ClearContents 'Clear cells only in the defined range
.AutoFilter 'Remove the filter
End With
End If
Next i
End Sub

Answer 2

Your explanation and title are two different subjects but based on your explanation-i understand you want to loop through column C and if a cell is empty, then you make other cells value to blank-i wrote below code. You may use. Tested
Sub test()
Dim ws As Worksheet
Set ws = ActiveSheet
With ws
lr = .Cells(Rows.Count, "C").End(xlUp).Row
For i = 2 To lr
If .Cells(i, "C") = "" Then
.Cells(i, "A") = ""
.Cells(i, "B") = ""
.Cells(i, "D") = ""
.Cells(i, "E") = ""
End If
Next i
End With
End Sub