The code is made up of four groups of flashes each representing a digit.
A long flash indicates the 'thousands' digit.
'Hundreds' 'Tens' and 'Ones' are groups of short flashes respectively.
A long pause separates each trouble code.
A shorter pause separates each group of flashes
Upper Code Format Diagram 'A' shows code No. 1132
Please note: A '0' digit is indicated by 10 flashes with this system.
Or...
Each code is made up of two series of flashes.
The long flashes indicate the 'tens' digits.
The short flashes indicate the 'ones' digits.
A long pause separates each code sequence.
Code Format Diagram shows code No. 12.
If no long flashes are detected, the code is a straight count of short flashes.