TM 9-2320-260-20
Table 2-4. Electrical Troubleshooting (Contd).
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 1. Check continuity between lead 461 attached to front composite light and frame ground.
Step 2. Set multimeter to RX1 scale.
a. Replace turn signal lamp if continuity is not present (para. 4-40).
b. If continuity is present, go to test 3.
Test 3. 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 negative lead of multimeter to frame ground.
Step 5. Touch positive lead of multimeter to contact end of lead 461 (left). Voltage should
fluctuate at a rate of 1 or 2 cycles per second.
a. If voltage is not present, go to test 4.
b. If voltage is present and does not fluctuate, go to malfunction 25.
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 negative lead of multimeter to pin B at cable connector.
Step 5. Touch positive lead of multimeter to contact end of lead 461 at front composite light.
Continuity should be present.
a. If continuity is present, go to test 5.
b. Repair or redate lead 461 if continuity is not present (para. 4-52).
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