DRIVER'S HEATER CIRCUIT. (Cont) - TM-9-2350-238-20-10367

TM 9-2350-238-20-1

Make sure MASTER switch is OFF before repairing

electrical circuits. Failure to observe this warning

could result in injury to personnel.

Step 3.

Place red probe on pin A (lead 402 R). Ground black probe. Set MASTER

switch ON. Set START-OFF-RUN switch to START, then to RUN. If

multimeter indicates about 24 volts in both switch settings, go to step 4. If

multimeter indicates no voltage in both switch settings, replace driver's

heater control box. Refer to page 2-1029. Set MASTER switch OFF. Set

START-OFF-RUN switch OFF. Connect wiring harness.

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