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Page Title:
BACK-UP ALARM DOES NOT OPERATE - continued |
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 TM 10-3930-673-20-1
VOLTAGE TEST
(1) Set multimeter to volts dc.
(2) Connect multimeter positive (+) lead to
relay K2 where wire 5 connects.
(3) Connect multimeter negative () lead to
known good ground.
(4) Connect negative battery cable to
negative side of battery (Para 8-44).
(5) Turn engine start switch ON, BUT DO
NOT START ENGINE
(TM 10-3930-673-10).
(a) If 24 vdc is present, repair wire 5
(Para 8-48).
(b) If 24 vdc is not present, go to
Step 7 of this fault.
(6) Turn engine start switch to OFF
position (TM 10-3930-673-10).
(7) Disconnect negative battery cable
(Para 8-44).
WIRE 5
WIRE 3
RELAY K2
VOLTAGE TEST
(1) Set multimeter to volts dc.
(2) Connect multimeter positive (+) lead to
relay K2 where wire 3 connects.
(3) Connect multimeter negative () lead to
known good ground.
(4) Connect negative battery cable to
negative side of battery (Para 8-44).
(5) Turn engine start switch ON, BUT DO
TR01097
NOT START ENGINE
(TM 10-3930-673-10).
(a) If 24 vdc is present, replace relay
K2 (Para 8-23).
(b) If 24 vdc is not present, go to
Step 8 of this fault.
(6) Turn engine start switch to OFF
position (TM 10-3930-673-10).
(7) Disconnect negative battery cable
(Para 8-44).
2-71
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