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DRAFT
TB 9-2320-364-13&P-1
FIELD LEVEL TROUBLESHOOTING INTRODUCTION - Continued
b. How to Begin Troubleshooting.
1. Determine the symptom or condition that indicates a problem or failure. Troubleshooting is divided into
symptoms peculiar to a component, for example: AC heater/evaporator blower or AC compressor. Refer
to the Troubleshooting Fault Index on page 0009-8.
2. Go to the referenced page to begin troubleshooting. Open the technical bulletin flat so both the left-hand
and right-hand pages are displayed before you. The information on both pages is important to resolve
the problem or failure. However, the experienced technician can follow the left-hand page instructions
and refer to the right-hand page when necessary.
3. Follow the diagnostic procedure. Answer question No. 1 on the left-hand page and follow the YES or NO
path to either the remedy or the next question. If necessary, look on the right-hand page for test
instructions and illustrations.
4. Observe warnings, cautions, and notes. The formatting and symbols used in this manual for warnings,
cautions, and notes are as follows:
WARNING
This is the symbol for a warning statement. If you see the word WARNING above a
question on the left-hand page, look on the right-hand page for the text of the
message. WARNINGs describe a situation which could cause severe injury or death
to personnel.
CAUTION
This is the symbol for a caution statement. If you see the word CAUTION above a
question on the left-hand page, look on the right-hand page for the text of the
message. CAUTIONs describe a situation which could cause damage to
equipment.
NOTE
This is the symbol for a note. Notes are located directly above the test to which they refer.
Notes provide additional information for performing a test.
c. Measurements Required for Troubleshooting.
CAUTION
Use proper-sized test leads and ensure care is used when checking for resistance,
continuity, or voltage at connectors, or damage to equipment may result.
1. Resistance measurements.
(a) Connect red test lead to volt-ohm input connector and black lead to COM input connector on meter.
(b) Set the function/range switch to the desired ohm position. If the magnitude of the resistance is not
known, set the switch to the highest range, then reduce until a satisfactory reading is obtained.
0009-2

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