TM 5-3805-254-20-1
ORGANIZATIONAL TROUBLESHOOTING - CONTINUED
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
46.
DOME LIGHT DOES NOT WORK - CONTINUED.
WARNING
Although KEY SWITCH must be on and battery ground cable connected to test electrical circuit
voltage, turn off KEY SWITCH and disconnect battery ground cable before doing resistance tests
or replacing parts. This will keep you from getting shocked and prevent damage to parts and
equipment.
NOTE
Scrape painted surfaces to bare metal before connecting test leads to ensure correct multimeter
readings.
Step 5. Set multimeter to 20 vdc scale. Connect red test lead to 63C wire (1) at output side (2) of
connector (3) and black test lead to ground. Check for 11 to 13 vdc on multimeter. Disconnect
test leads.
a.
If multimeter does not read 11 to 13 vdc, 63C wire (1) on
output side of connector (2)
must
be
replaced. Notify Direct Support maintenance.
b.
If multimeter reads 11 to 13 vdc, go to step 6.
Step 6.Set multimeter to 20 vdc scale. Connect red test lead to 63C wire (4) at input side (5) of
connector (3) and black test lead to ground. Check for 11 to 13 vdc on multimeter. Disconnect
test leads.
a.
If multimeter does not read 11 to 13 vdc, go to step 7.
b.
If multimeter reads 11 to 13 vdc, go to step 8.
Step 7.
Check connector (3) for corrosion.
a.
If connector(3) is corroded, clean using emery cloth.
b.
If connector(3) is not corroded, go to step 8.
Step 8.Open upper center instrument panel (page 2-424). Set multimeter to 20 vdc scale.
Connect red test lead to 63C wire terminal (6) on DOME PNL light switch (7) and black test lead
to ground. Check for 11 to 13 vdc on multimeter. Disconnect test leads.
a.If multimeter does not read 11 to 13 vdc, 63C wire (8) must be replaced. Notify
Direct Support maintenance.
b.
If multimeter reads 11 to 13 vdc, go to step 9.
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