DIAGNOSTIC FLOWCHART
PROTECTIVE CONTROL BOX/DISTRIBUTION BOX
2-228 Change 1
START
GO TO 4,
Page 2-230
PLACE TRANSMISSION AND
TRANSFER CASE SHIFT
LEVERS IN NEUTRAL DRIVE
POSITION.
1
2
3
ENSURE ALL ENGINE AND
ELECTRICAL ACCESSORY
SWITCHES ARE IN THE
OFF POSITION.
ENGAGE PARKING BRAKE.
ENSURE ALL VEHICLE GROUNDS
AFFECTING PROTECTIVE
CONTROL BOX/DISTRIBUTION
BOX ARE SECURE.
TM 9-2320-280-20-1