TM-9-2320-361-24-1

2-1/2 TON, 6X6, M44A2 SERIES TRUCKS

TECHNICAL MANUAL; FIELD AND SUSTAINMENT MAINTENANCE PART 1 OF 2

AUGUST 2006

TM-9-2320-361-24-1 - Page 225 of 1176

TM 9-2320-361-24-1

0013 00

0013 00-13

LIGHTING AND WIPER SYSTEM TROUBLESHOOTING (Contd)

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

1. DIRECTIONAL

SIGNAL

INOPERATIVE

(Contd)

Test 2. Test for voltage at front

composite light.

1. Disconnect lead 461 at left

front composite light.

2. Place turn signal lever in left

position.

3. Set multimeter to range that

will measure 24 volts.

4. Touch multimeter negative

lead to frame ground.

5. Touch multimeter positive lead

to contact end of lead 461.

Voltage should fluctuate at

rate of 1 or 2 cycles per second.

Test 3. Test continuity of filament and

socket for turn signal lamp.

Check continuity between lead

460-461 attached to front

composite light and frame

ground.

1. If voltage does fluctuate, go to

test 3.

2. If voltage does not fluctuate, go to

test 4.

1. If continuity is present, reconnect

leads 460-461 and check turn signal

operation. If turn signal operates

but does not flash, go to tests 6

and 7.

2. If continuity is not present, replace

turn signal lamp (WP 0122 00).

TURN SIGNAL

LIGHT

MAL 1

TEST 3

MAL 1

TEST 2

STEPS 4 AND 5

491

491

460/461

461

20

20

Table 3. Directional Signal Systems Troubleshooting Procedures (Contd).