TM 5-5420-234-14&P
4-12. UNIT TROUBLESHOOTING (continued).
8.
OIL TEMPERATURE LIGHT DOES NOT OPERATE PROPERLY (MODEL A ONLY)
(continued).
10.
TEST OPTIONS
KNOWN INFO
Oil temperature bulb OK.
Voltage Test.
Are there 2228 volts
Oil temperature light is on
measured at main
REASON FOR QUESTION
all the time.
junction box connector
Oil temperature switch
(J4), position P, at
If voltage is measured at
OK.
main junction box?
the main junction box,
this indicates that the
POSSIBLE PROBLEMS
circuit is shorted inside
Linking harness faulty.
the main junction box. If
Main junction box harness
no voltage is measured,
faulty.
the circuit is shorted
after the junction box.
Replace (24-pin)
NO
linking harness
Replace main
YES
junction box
harness (para 4-
4-150
Change 1
