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 197 of 1207
TM 9-2320-361-20
Table 2-4. Electrical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Test 4. Test continuity of front composite light wiring harness.
Step 1. Disconnect lead 461 from front composite light.
Step 2. Disconnect cable connector at turn signal switch.
Step 3. Set multimeter to RX1 scale.
Step 4. Touch multimeter negative lead to pin B at cable connector.
Step 5. Touch multimeter positive lead to contact end of lead 461 at front composite light.
a. Continuity should be present.
b. If continuity is not present, replace or repair lead 461 (para 4-51).
c. Perform test 4 again. If lamp fails to flash, go to test 5.
Test 5. Test continuity of turn signal switch.
Step 1. Disconnect cable connector at turn signal switch.
Step 2. Place turn signal switch to LEFT position.
Step 3. Touch multimeter negative lead to pin G of turn signal switch.
Step 4. Touch multimeter positive lead to pin B 461 (front left) and pin C 22/461 (left rear) of turn
signal switch.
a. Continuity should be present.
b. If continuity is not present, replace turn signal switch (para. 4-19).
Step 5. Place turn signal lever to RIGHT position.
Step 6. Touch multimeter positive lead to pin A 460 (right front) and pin E 22/460 (right rear) at
turn signal switch.
a. Continuity should be present.
b. If continuity is not present, replace turn signal switch (para. 4-19).
Step 7. Touch multimeter positive lead to pin Fat turn signal switch.
a.
b.
Continuity should be present.
If continuity is not present, replace turn signal switch (para. 4-19).
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