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Page Title:
FRONT WINDSHIELD WIPERS DO NOT OPERATE - continued |
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 TM 10-3930-673-20-1
VOLTAGE CHECK
(1) Set multimeter to volts dc.
(2) Connect multimeter positive lead (+) to
wire 32 where wire 32 connects to front
wiper motor.
(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 to ON position,
BUT DO NOT START ENGINE
(TM 10-3930-673-10).
(6) Turn front wiper switch to LO position
(TM 10-3930-673-10).
(a) If 24 vdc is present, go to Step 5 of
this fault.
(b) If 24 vdc is not present, repair
wire 32 (Para 8-48).
(7) Turn front wiper switch to OFF position
(TM 10-3930-673-10).
(8) Turn engine start switch OFF
(TM 10-3930-673-10).
(9) Disconnect negative battery cable
(Para 8-44).
VOLTAGE CHECK
(1) Set multimeter to volts dc.
(2) Connect multimeter positive lead (+) to
wire 31 where wire 31 connects to front
wiper motor.
(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 to ON position,
BUT DO NOT START ENGINE
TR01154
(TM 10-3930-673-10).
(6) Turn front wiper switch to HI position
(TM 10-3930-673-10).
(a) If 24 vdc is present, replace front
wiper motor (Para 17-2).
(b) If 24 vdc is not present, repair
wire 31 (Para 8-48).
(7) Turn front wiper switch to OFF position
(TM 10-3930-673-10).
(8) Turn engine start switch OFF
(TM 10-3930-673-10).
(9) Install battery cover (Para 8-42).
(10) Install four screws to secure left-hand
instrument panel.
2-415
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