REAR WINDSHIELD WIPERS DO NOT OPERATE - continued

TM 10-3930-673-20-1

Remove rings, bracelets, watches, necklaces, and any other jewelry before working around vehicle. Jewelry can catch on

equipment and cause injury or short across electrical circuit and cause severe burns or electrical shock.

Battery acid is harmful to skin and eyes. Always wear eye protection when working with batteries.

VOLTAGE CHECK

(1) Remove battery cover (Para 8-42).

(2) Disconnect negative battery cable

(Para 8-44).

(3) Remove four screws from left-hand

instrument panel.

(4) Lift panel out to get to back of rear

wiper switch.

(5) Set multimeter to volts dc.

(6) Connect multimeter positive lead (+) to

wire 30 where wire 30 connects to rear

wiper switch.

(7) Connect multimeter negative lead () to

ENGINE START

known good ground.

SWITCH

(8) Connect negative battery cable to

negative side of battery (Para 8-44).

WIRE 30

(9) Turn engine start switch to ON position,

BUT DO NOT START ENGINE

(TM 10-3930-673-10).

(a) If 24 vdc is present, go to Step 2 of

REAR WIPER

this fault.

(b) If 24 vdc is not present, repair

SWITCH

wire 30 (Para 8-48).

(10) Turn engine start switch to OFF

TR01155

position (TM 10-3930-673-10).

(11) Disconnect negative battery cable

(Para 8-44).

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