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TM 10-3930-669-20
1. ENGINE FAILS TO CRANK (CONT).
KNOWN INFO
TEST OPTIONS
Shunt to starter cable OK.
Starter ground cable OK.
Starter OK.
Batteries OK.
Battery to shunt cable OK.
Wire 2 OK.
Relay R5 ground wire OK.
Wire 7 OK.
Wire 23 OK.
Relay R5 OK.
Engine switch OK.
Wire 33 OK.
Wire 32 OK.
Relay R3 OK.
Voltage test.
STE/ICE-R #89.
POSSIBLE PROBLEMS
REASON FOR QUESTION
Main power switch faulty.
Fuse 1 faulty.
Wire 4 faulty.
If 22 to 24 vdc are not
present. main power switch is
faulty.
2-32
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