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TM-9-2320-361-24-1 Page 226

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

Page 226 of 1176


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TM 9-2320-361-24-1 0013 00 0013 00-14 LIGHTING AND WIPER SYSTEM TROUBLESHOOTING (Contd) MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION 1. DIRECTIONAL SIGNAL INOPERATIVE (Contd) Test 4. Test continuity of front composite light wiring harness. 1. Disconnect lead 461 from front composite light. 2. Disconnect cable connector at turn signal switch. 3. Set multimeter to RX 1 scale. 4. Touch multimeter negative lead to pin B at cable connector. 5. Touch multimeter positive lead to contact end of 461 at front composite light. Test 5. Test continuity of turn signal switch. 1. Disconnect cable connector at turn signal switch. 2. Place turn signal switch in left position. 3. Touch multimeter negative lead to pin G of turn signal switch. 4. Touch multimeter positive lead to pin B 461 (front left) and pin C 22-461 (left rear) of turn signal switch. 5. Place turn signal lever in right position. 6. Touch multimeter positive lead to pin A 460 (right front) and pin E (right rear) at turn signal switch. 7. Touch multimeter positive lead to pin F at turn signal switch. 1. If continuity is not present, repair or replace lead 461 (WP 0090 00). 2. Perform test 4 again. If lamp fails to flash, go to test 5. If continuity is not present, replace turn signal switch (WP 0102 00). If continuity is not present, replace turn signal switch (WP 0102 00). If continuity is not present, replace turn signal switch (WP 0102 00). Table 3. Directional Signal Systems Troubleshooting Procedures (Contd).