HORN INOPERATIVE CONTINUED - TM-9-2320-270-20-10162

TM 9-2320-270-20-1

TROUBLESHOOTING - CONTINUED

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

35. HORN INOPERATIVE CONTINUED.

At two horns (1), using multimeter set at 30 vdc, put red probe on horn

Step 7.

terminal for wire no. 168 (2) and black probe to good ground. Have assistant

push horn button, hold and release.

If meter reads no voltage, close right side of hood (TM 9-2320-270-10)

and notify direct support maintenance.

Take off wires to two horns (1). Using multimeter set at RX1, put probes on horn

Step 8.

contacts (3).

If meter does not read zero, replace horns (page 4-438).

Take off ground wires (4). Using multimeter set at RX1, put probe on each end.

Step 9.

a. If meter reads zero, close right side of hood (TM 9-2320-270-10)

and notify direct support maintenance.

b. If meter does not read zero, put on wires and go to BOTH HEAD-

LIGHTS DO NOT WORK, and do steps 6 thru 9 (page 3-48).

3-100