TM-9-2350-238-20-1
HULL AND RELATED COMPONENTS RECOVERY VEHICLE, FULL TRACKED: LIGHT, ARMORED, M578
TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL
MAY 1994
TM-9-2350-238-20-1 - Page 96 of 1364
TM 9-2350-238-20-1
2-11. TROUBLESHOOTING INFORMATION (CONT).
Table 2-3. UNIT TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
44.
45.
46.
47.
48.
49.
ELECTRICAL—BLACKOUT MARKER
HEADLAMP AND TAILLIGHT BUCKOUT MARKERS ARE OFF WHEN MASTER SWITCH IS
ON AND VEHICULAR LIGHT SWITCH IS TURNED TO BO MARKER.
Troubleshoot blackout marker circuit. Refer to Electrical Circuit Symptom Index,
page 2-92.
TAILLIGHT BLACKOUT MARKER IS OFF AND HEADLAMP BLACKOUT MARKER IS ON.
Troubleshoot taillight blackout marker circuit. Refer to Electrical Circuit Symptom Index,
page 2-92.
HEADLAMP BLACKOUT MARKER IS OFF AND TAILLIGHT BLACKOUT MARKER IS ON.
Troubleshoot headlamp blackout marker circuit. Refer to Electrical Circuit Symptom
Index, page 2-92.
BOTH BLACKOUT DRIVE HEADLAMPS ARE OFF WHEN MASTER SWITCH IS ON,
VEHICULAR LIGHT SWITCH IS TURNED TO BO DRIVE, AND BO-IR SWITCH IS SET TO
BO.
Troubleshoot blackout drive headlamp circuit (vehicular light switch). Refer to Electrical
Circuit Symptom Index, page 2-92.
EITHER LEFT OR RIGHT BLACKOUT DRIVE HEADLAMP IS INOPERATIVE.
Troubleshoot blackout drive headlamp circuit (headlamp assembly). Refer to Electrical
Circuit Symptom Index, page 2-92.
BLACKOUT STOPLIGHT IS OFF WHEN BRAKES ARE APPLIED.
Step 1.
Check adjustment of brake warning sensitive switch. Refer to page 2-626.
Step 2.
Troubleshoot blackout stoplight circuit. Refer to Electrical Circuit Symptom
Index, page 2-92.
2-70
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