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Page Title: ENGINE OIL PRESSURE INDICATOR CIRCUIT. (Cont)
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TM 9-2350-238-20-1
2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).
Disconnect lead 36 from ENGINE OIL PRESS indicator. Place red probe
Step 3.
in lead 36. Ground black probe. Start engine and run at 1000 to 1200
rpm. Check resistance and stop engine. If multimeter indicates about 0
ohms and then increases 10 to 16 ohms, replace ENGINE OIL PRESS
indicator. Refer to page 2-571. If multimeter indicates 0 ohms, or
increases to less than 10 ohms, go to step 4. Connect lead 36 to ENGINE
OIL PRESS indicator.
Step 4.
To access engine oil pressure transmitter, open engine fuel filter access
door. Disconnect lead 36 from engine oil pressure transmitter. Place red
probe in input terminal of engine oil pressure transmitter. Ground black
probe. Start engine and run at 1000 to 1200 rpm. Check resistance and
stop engine. If multimeter indicates 10 to 16 ohms, go to step 5. If
multimeter indicates less than 10 ohms or more than 16 ohms, replace
engine oil pressure transmitter. Refer to page 2-626. Connect lead 36 to
engine oil pressure transmitter.
2-152

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