ENGINE OIL PRESSURE INDICATOR CIRCUIT. (Cont)

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.

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