TM 9-2320-387-24-l
DIAGNOSTIC FLOWCHART
I
KNOWN INFO
r OPTIONS
DOES THE BRAKE WARNING
LAMP OPERATE PROPERLY?
WATT-TO-START
LAMP OK
INSTRUMENTS
SENDING UNITS
REASON FOR QUESnON
If the brake warning lamp comes
on at any time, then the circuit is
being powered.
KNOWN INFO
OPflONS
VISUAL
BRAKE LAMP OK
DOES THE VOLTMETER WORK?
REASON FOR QUESnON
If the voltmeter works then the
power to the instruments is OK.
POSSIBLE
PROBLEMS
INSTRUMENTS
WIRING
SENDING UNITS
6
1
TEST OPnONS
KNOWN INFO
VOLTMETER OK
VISUAL
TURN ROTARY SWITCH TO OFF
POSITON. DISCONNECT THE
GLOW PLUG CONTROLLER. WITH
THE ROTARY SWITCH IN THE RUN
POSITION, DOES THE
WINDSHIELD WIPER WORK?
TURN ROTARY SWITCH TO OFF
POSITION. RECONNECT THE
GLOW PLUG CONTROLLER.
REASON FOR QUESnON
If the windshield wiper works,
then the power to the wiper is
OK.
POSSIBLE
PROBLEMS
INSTRUMENTS
WIRING
SENDING UNITS
2-308
