CHAPTER 7 SAMPLE TROUBLESHOOTING TM 9-2320-209-34-1 PROCEDURE 7-1. GENERAL. This chapter gives a sample troubleshooting procedure. The purpose of the sample procedure is to help you see how detailed troubleshooting procedures, test equipment procedures, and summary troubleshooting procedures are used to find faults in a system. 7.2. SAMPLE DETAILED PROCEDURE. (See figure 7-1.) The sample detailed pro- cedure given is the fuel system troubleshooting procedure for the symptom, STARTER MOTOR WILL NOT CRANK ENGINE. This symptom is one you will have when you try to start your truck and certain parts on the truck are not working correctly. In each numbered box, instructions are given which tell you what to do, and how to do it. A large dot is placed next to the “what-to-do” instructions, and small dots next to the “how-to-do-it” instructions. a. Box number gives general instructions on getting the truck ready before you start to troubleshoot. b. Box number gives fault isolation test instructions. In this case you are told to check the starting system circuit for loose, burned, or broken leads and connections. These tests or checks, are often referred to in detailed troubleshooting procedures to help you find the problem and fix it. After you do the tests or checks you read the question at the bottom of box number If the starter system is not okay, the answer to the question is so you go to the next box. c. Box number gives you a corrective action. In this case the fault is burned or broken leads or connectors. The corrective action is what you do to fix the fault, which is to replace any burned or broken leads or connectors. If the engine still doesn’t start after you do this, it could mean that there are other faults in the system. When this happens, go back to the beginning of the procedure and do each step again until you find the other faults. d. Sometimes the corrective actions given for a fault will tell you what to do to fix the fault, but will not give you detailed instructions on how to fix it. Instead, you will be told to refer to another volume in this manual for these instructions. Box number is an example of this. 7-1