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TM 9-2320-364-20-3
2-2778
19. CRANE HIGH IDLE NOT WORKING (CONT).
3.
Is there continuity on green
wire between throttle relay
and ground?
Repair green wire
(see schematic
Fig 2-58) or notify DS
Maintenance.
Verify repair, go to
Step 19 of this Fault.
YES
NO
Crane operates.
Red wire from terminal 17 to
relay OK.
Green wire from relay to ground
faulty.
Black wire from terminal 3 to
relay faulty.
Relay faulty.
Blue wire from relay to diode
faulty.
Diode faulty.
Red wire from diode to HIGH
IDLE switch faulty.
Green jumper wire on HIGH
IDLE switch faulty.
HIGH IDLE switch faulty.
Wire 231 faulty.
Relay R22 faulty.
Black wire from power switch to
HIGH IDLE switch faulty.
HIGH IDLE switch faulty.
Green wire from HIGH IDLE
switch to terminal 17 faulty.
White wire from terminal 17 to
crane connector faulty.
Wire 1737 faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
If green wire is loose or faulty,
throttle relay will not be
grounded.
WARNING
Read WARNING
on Page 2-2779
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