TM 9-2320-289-20
Section Ill. TROUBLESHOOTING
2-9.
GENERAL.
a. This section provides information for identifying malfunctions which may develop in the
CUCV. Because of the complexity of the CUCV, troubleshooting has been divided into two major
areas: mechanical troubleshooting (Table 2-3) and electrical troubleshooting (Table 2-4). The
troubleshooting symptom index (paragraph 2-11) provides a list of possible malfunctions, grouped
alphabetically by major truck system, with the location of steps that can be taken to correct the
malfunction.
b. For a better understanding of how a system operates, see Principles of Operation
(Chapter 1, Section Ill). If you’re unsure about the location of an item mentioned in troubleshooting,
refer to the maintenance task where the item is replaced. DO NOT perform the maintenance task
unless the troubleshooting table or your supervisor tell you to do so.
c. When troubleshooting a malfunction:
(1) Ensure that both batteries are fully charged.
(2) Question the operator to obtain any information that might help determine the
cause of the problem. Also ensure that all applicable operator troubleshooting was performed before
beginning troubleshooting procedures in this manual.
(3) Locate the symptom or symptoms in paragraph 2-11 that describe the
malfunction. Check both mechanical and electrical symptoms. If a symptom of a truck malfunction is
not listed, notify your supervisor.
(4) Turn to the page in the troubleshooting table where the troubleshooting
procedures are listed. Headings at the top of each page show how each troubleshooting task is
organized: MALFUNCTION, TEST OR INSPECTION (in step number order), and CORRECTIVE
ACTION.
(5)
d. If a
supervisor.
Perform each step in the order listed until the malfunction is corrected.
malfunction cannot be corrected by the listed corrective actions, notify your
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