TM 9-2350-261-20-l
1.
2.
3.
Remove rear main harness circuit 400A plug (1)
from control box jack (2).
Measure voltage between rear main harness circuit
400A plug (1) pin and ground.
Does multimeter read more than 17 volts?
Y ES
1.
2.
3.
Remove heater control box (page
Measure resistance between lead
breaker terminals 16 (1) and 17
Does multimeter read 0 ohms?
32-42).
ends from circuit
(2).
1. Repair rear main harness
circuit 400 between master
switch and heater control
box (page 14-3).
2. Verify no faults found.
1. Replace heater circuit
breaker (page 32-42).
2. Verify no faults found.
GO TO NEXT PAGE
3-219