TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
8.
OIL TEMPERATURE LIGHT DOES NOT OPERATE PROPERLY (MODEL A ONLY)
(continued).
9.
KNOWN INFO
TEST OPTIONS
Oil temperature bulb OK.
Continuity Test.
Is there an open circuit
Oil temperature light is on
across the terminals of
REASON FOR QUESTION
all the time.
the oil temperature
switch?
The oil temperature
POSSIBLE PROBLEMS
switch is faulty if there is
Oil temperature switch
continuity across the
faulty.
switch terminals at room
Linking harness faulty.
temperature.
Main junction box wire
harness faulty.
Replace oil temperature
NO
switch (para 4-87).
YES
4-148
Change 1
