CAB DEFROSTER FAN(S) DO NOT OPERATE - continued

TM 10-3930-673-20-1

Remove rings, bracelets, watches, necklace, 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) Remove battery cover(s) (Para 8-44).

(2) Disconnect negative battery cable from

negative side of battery (Para 8-44).

(3) Disconnect wire 80 female connector

from male connector.

(4) Set multimeter to volts dc.

(5) Connect multimeter positive (+) lead to

wire 80 female end.

(6) Connect multimeter negative () lead to

known good ground.

(7) Connect negative battery cable to

negative side of battery (Para 8-44).

(8) Turn engine start switch ON, BUT DO

NOT START ENGINE

(TM 10-3930-673-10).

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

this fault.

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

Step 3 of this fault.

(9) Turn engine start switch to OFF

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

(10) Disconnect negative battery cable

(Para 8-44).

TR01087

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