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Page Title:
HORN DOES NOT OPERATE - continued |
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 TM 10-3930-673-20-1
VOLTAGE TEST
(1) Remove four screws and access panel.
ACCESS
P
(2) Set multimeter to volts dc.
ANEL
(3) Connect multimeter positive (+) lead to
circuit breaker CB10 where wire 20
connects.
(4) Connect multimeter negative () lead to
known good ground.
(5) Connect negative battery cable
(Para 8-44).
(a) If 24 vdc is not present, go to
Step 5 of this fault.
(b) If 24 vdc is present, repair wire 20
(Para 8-48).
(6) Disconnect negative battery cable
(Para 8-44).
SCREW
B CIRCUIT
REAKER
C
B10
WIRE 29
VOLTAGE TEST
(1) Set multimeter to volts dc.
(2) Connect multimeter positive (+) lead to
WIRE 20
circuit breaker CB10 where wire 29
connects.
(3) Connect multimeter negative () lead to
known good ground.
(4) Connect negative battery cable
(Para 8-44).
(a) If 24 vdc is not present, go to
Step 6 of this fault.
TR00949
(b) If 24 vdc is present, replace circuit
breaker CB10 (Para 8-11).
(5) Disconnect negative battery cable
(Para 8-44).
2-51
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