TM 9-2350-261-20-1
1. Install circuit 520 plug on IR/BO selector switch.
2. Replace lighting control switch (page 11-9).
3. Verify no faults found.
1. Remove circuit 514 (high beam) plug (1) or
515 (low beam) plug (2) from failing IR service
headlight (3).
2. Measure voltage between front main harness circuit
514 plug (1) or 515 plug (2) and ground.
3. Does multimeter read less than 17 volts?
NO
1. Replace IR service
headlight lamp unit
(page 12-3).
2. Verify no faults found.
1. Is failing IR headlight located on right side of
1. Repair front main harness
carrier?
circuit 514 or 515 between
left IR head light and
Y E S
dimmer switch
(page 14-3).
2. Verify no faults found.
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