TM 9-2320-387-24-l
2-20. HOW TO USE THIS TROUBLESHOOTING
GUIDE (CONT’D)
INFORMATION ABOUT THE
QUESTION
TEST OPTIONS:
This box lists at least one way of getting the answer
to the question. When there is more than one way
to get the answer, the different options will be
given. Usually the easiest or best option is first.
REASON FOR
QUESTION:
If you know why the question is being asked, it
should be easier to understand the diagnostic logic
and easier to answer the question. This is
especially helpful when a measurement
is just a
little bad. Knowing why the question is being asked
should help you decide if the answer should be
YES or NO.
INFORMATION ABOUT THE
DIAGNOSTIC LOGIC
KNOWN
INFO:
This box indicates what is known about the vehicle’s condition.
As you follow a test chain, parts will be listed here after they have
checked ok. Sometimes this box will indicate a fault that you
know exists, such as a shorted or open drcuit, or a component
that doesn’t work. DO NOT USE THIS BOX TO PICK A JUMP-IN
POINT. ALWAYS RUN A COMPLETE
CHAIN WHEN
INSTRUCTED TO DC SO.
’ :
POSSIBLE
PROBLEMS:
This box is the opposite of KNOWN INFO. Possible causes of
the problem are listed here until tested and shown to be ok.
TEST OPTIONS
KNOWN
INFO
POSSIBLE
PROBLEMS
2-40
