ONE OR BOTH HEADLIGHTS 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 TEST

(1) Set multimeter to volts dc.

(2) Connect multimeter positive lead (+) to

female connector of faulty socket

where wire 49 connects.

(3) Connect multimeter negative lead () to

known good ground.

(4) Turn blackout light switch to SER.

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

HEADLIGHT

(5) 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 14

of this fault.

WIRE 49

(b) If 24 vdc is not present, go to

Step 3 of this fault.

(6) Turn blackout light switch OFF position

(TM 10-3930-673-10).

(7) Turn engine start switch to OFF

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

FEMALE CONNECTOR

VOLTAGE TEST

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

(2) Disconnect negative battery cable from

negative side of battery (Para 8-42).

(3) Set multimeter to volts dc.

(4) Connect multimeter positive lead (+) to

starter motor solenoid where wire 9

connects.

(5) Connect multimeter negative lead () to

known good ground.

(6) Connect negative battery cable to

negative side of battery (Para 8-42).

(a) If 24 vdc is present, go to Step 4 of

this fault.

(b) If 24 vdc is not present, service or

WIRE 9

replace battery cable (Para 8-42).

(7) Disconnect negative battery cable from

negative side of battery (Para 8-42).

STARTER SOLENOID

TR01739

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