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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 31 where wire 31 connects to front
wiper switch.
(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 HI position
(TM 10-3930-673-10).
(a) If 24 vdc is present, go to Step 3 of
this fault.
(b) If 24 vdc is not present, replace
front wiper switch (Para 8-7).
(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
ENGINE
(1) Set multimeter to volts dc.
START
(2) Connect multimeter positive lead (+) to
SWITCH
WIRE 31
wire 32 where wire 32 connects to front
wiper switch.
(3) Connect multimeter negative lead () to
known good ground.
(4) Connect negative battery cable to
WIRE 32
negative side of battery (Para 8-44).
(5) Turn engine start switch to ON position,
FRONT WIPER
BUT DO NOT START ENGINE
SWITCH
(TM 10-3930-673-10).
(6) Turn front wiper switch to LO position
TR01153
(TM 10-3930-673-10).
(a) If 24 vdc is present, go to Step 4 of
this fault.
(b) If 24 vdc is not present, replace
front wiper switch (Para 8-7).
(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).
2-413
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