TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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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).