TM-9-2320-361-20

2-1/2-TON, 6x6, M44A2 SERIES TRUCKS (MULTIFUEL)

TECHNICAL MANUAL; UNIT MAINTENANCE

OCTOBER 1991

TM-9-2320-361-20 - Page 196 of 1207

TM 9-2320-361-20

Table 2-4. Electrical Troubleshooting (Contd).

MALFUNCTION

TEST OR INSPECTION

CORRECTIVE ACTION

NOTE

Testing procedures for left and right turn signal leads 461 and 460

are performed the same using tests 1 through 8. This test covers left

side 461 turn signal circuit.

Test 2. Test for voltage at front composite lights.

Step 1. Disconnect lead 461 at left front composite light.

Step 2. Place turn signal lever to LEFT position.

Step 3. Set multimeter to a range that will measure 24 volts.

Step 4. Touch multimeter negative lead to frame ground.

Step 5. Touch multimeter positive lead to contact end of lead 461 (left). Voltage should fluctuate at

a rate of 1 or 2 cycles per second.

a. If voltage does fluctuate, go to test 3.

b. If voltage does not fluctuate, go to test 4.

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.

a. 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.

b. If continuity is not present, replace turn signal lamp (para. 4-19).

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