TM 9-2320-387-24-l
INSTRUMENTS ClRCUfl/
G&s>
TEST
OPT,ONS
DIAGNOSTIC FLOWCHART
1
r
L
KNOWN INFO
I
TRY IT.
I
L
GAUGE HAS POWER 8
GROUND
I
SENDER OK
WIRING OK
POSSIBLE
PROBLEMS
WITH THE ROTARY SWITCH IN
THE RUN POSITION, SHORT THE
SOCKET FOR WIRE 28A TO
GROUND. DOES THE FUEL
GAUGE READ AT OR BELOW
EMPTY?
REASON FOR QUESTION
Gauge should read at or
below empty.
KNOWN INFO
GAUGE HAS POWER &
GROUND
SENDER OK
WIRING OK
POSSIBLE PROBLEMS
1
GAUGE
WITH THE ROTARY SWITCH IN
THE ON POSITION AND WIRE
28A OPEN, DOES THE FUEL
GAUGE READ OFF SCALE TO
ABOVE FULL?
OPTIONS
TRY IT.
REASON FOR QUESTtON
Gauge should read off scale.
2-340
