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TM 10-3930-643-20
ELECTRICAL SYSTEM TROUBLESHOOTING AND MAINTENANCE.
5-8.
Instrument Panel Troubleshooting.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
d.
ENGINE OIL PRESSURE WARNING LIGHT DOES NOT OPERATE.
Step 1.
Remove socket and check the engine oil pressure warning light
bulb.
If the bulb is burned out, replace, refer to paragraph 5-25.
NOTE
Before proceeding with continuity test, refer to paragraph 2-13 for
i n i t i a l s e t u p i n s t r u c t i o n s.
Step 2.
Test the continuity of the oil pressure switch. Disconnect the
wire assembly from the switch, as shown. Connect multimeter to
terminals on the switch.
If multimeter needle does not move, the switch does not have
continuity. Replace the switch, refer to paragraph 5-41.
5-43
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