2-176
Change 4
TM 9-2250-267-20
G Place red lead of multimeter on heat selector switch (output wire 402) and
black lead to ground Move HEAT SELECTOR switch to HIGH and LOW
positions (position red leaden HIGH and LOW terminals). If voltage is not
present in both positions, replace switch (p 6-26). If voltage is present go
to step H.
H
Assemble and install accessory control box (p 6-26). Disconnect wire 402A
at personnel heater fuel pump. Place MASTER switch ON, HEAT
SELECTOR switch LOW. Place red lead of multimeter in wire 402A
connector and black lead to ground If voltage is not present replace wire
402A (p 6-100.3). If voltage is present, replace fuel pump (p 14-71). If
heater still does not operate, replace heater (p 14-68.2).