TM 5-3805-261-20LIGHT SYSTEM TROUBLESHOOTING AND MAINTENANCE PROCEDURES. (cont)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONc.HEADLIGHTS FAIL TO OPERATE.Step 3. Test the continuity of the dimmer switch (Figure 7-107). Connect multimeter to the back of switch.Figure 7-107If the multimeter needle does not move, the circuit does not have continuity. Replace dimmer switch. Refer toparagraph 7-74.Step 4. Check the wiring harness for corrosion, cracks or breaks.If the wiring harness is damaged or defective--repair. Refer to paragraph 7-117. If replacement is necessary--contact Direct Support.d.INDIVIDUAL LIGHT FAILS TO OPERATE.Step 1. Check the bulb.If the bulb is burned out--replace.Step 2. Check the wiring harness.If the wiring harness is damaged or defective--repair. Refer to paragraph 7-117. If replacement is necessary--contact Direct Support.Step 3. Check individual light socket.If corrosion is evident, or if the socket is damaged or defective replace.7-182
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