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TM 9-2320-364-20-4
2-3042
1. ARCTIC KIT WATER PUMP DOES NOT OPERATE (CONT).
Arctic batteries OK.
Blackout stop lights operate
indicating CB20 is OK.
Wire 1435 faulty.
Water pump faulty.
Wire 1431 from connector
MC119 to CB20 faulty.
Wire 1431 between relays R32
and arctic heater switch faulty.
Relay R32 faulty.
Arctic heater switch faulty.
Wire 1644 faulty.
Relay R33 not grounded.
Relay R33 faulty.
Wire 1644 to arctic water faulty.
KNOWN INFO
POSSIBLE PROBLEMS
TEST OPTIONS
REASON FOR QUESTION
Continuity test.
STE/ICE-R #91.
Water pump will not operate if it
is not grounded.
YES
NO
Repair wire 1435 (see
schematic Fig 2-74)
or notify DS
Maintenance.
Verify repair, go to
Step 11 of this Fault.
2.
Is continuity measured on
wire 1435 between water
pump and a known good
ground?
Replace water pump
(Para 21-6).
Verify repair, go to
Step 11 of this Fault.
WARNING
Read WARNING
on Page 2-3043
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