FUEL FILTER HEATER CIRCUIT. (Cont) - TM-9-2350-238-20-10334

TM 9-2350-238-20-1

2-12. ELECTRICAL CIRCUIT TROUBLESHOOTING (CONT).

Make sure MASTER switch is OFF before repairing

electrical circuits. Failure to observe this warning

could result in injury to personnel.

To access wiring harness, remove hull engine compartment deck assembly

Step 7.

lid. Refer to page 2-935. Disconnect wiring harness. Place red probe in

socket B (lead 403 B). Ground black probe. Set MASTER switch ON. Set

fuel filter heater switch ON. If multimeter indicates about 24 volts, go to

step 8. If multimeter indicates no voltage, repair lead 403B between wiring

harness disconnect and fuel filter heater switch. Refer to page 2-371. Set

MASTER switch OFF. Set fuel filter heater switch OFF. Connect wiring

harness.

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