TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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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