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 TM 9-2350-238-20-1
Table 2-3. UNIT TROUBLESHOOTING (CONT)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
MASTER IND light is off. Electrical circuits are not operating.
Step 2.
Troubleshoot master switch circuit. Refer to Electrical Circuit Symptom Index,
MASTER IND light is on. Electrical circuits are not operating.
Step 3.
NOTE
Screws holding master relay on bulkhead also ground
relay.
Check master relay ground for bad connections.
a.
Clean ground connections with crocus cloth (item 10, appx C). Tighten
ground connections.
Troubleshoot master relay circuit. Refer to Electrical Circuit Symptom
b.
Index, page 2-92.
MASTER IND light is on. Vehicle lights are not operating and instruments are
Step 4.
not operating.
Troubleshoot instrument switch circuit. Refer to Electrical Circuit Symptom
Index, page 2-92.
Vehicle lights are operating.
Step 5.
Check neutral position switch on transmission for proper adjustment.
a.
Adjust switch if required. Refer to page 2-562.
Check starter lead for bad connections.
b.
Tighten connections.
Troubleshoot starter circuits. Refer to Electrical Circuit Symptom Index,
c.
2-49
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