TM 9-2320-387-24-l
ELECTRICAL
KNOWN INFO
ROTARY SWITCH OK
CIRCUIT BREAKER 1 OK
POSSIBLE
PROBLEMS
BATTERY
ALTERNATOR
PCB
RUN WIRING
ACCESSORY
WIRING
KNOWN INFO
BATTERY OK
START WIRING OK
ROTARY SWITCH OK
ALTERNATOR
OK
POSSIBLE
PROBLEMS
PCB
RUN WIRING
ACCESSORY
WIRING
KNOWN INFO
BATTERY OK
START WIRING OK
ROTARY SWITCH OK
ALTERNATOR OK
POSSIBLE
PROBLEMS
PCB
RUN WIRING
ACCESSORY
WIRING
DIAGNOSTIC FLOWCHART
TEST OPTIONS
1. VOLTMETER
START THE ENGINE. WHEN THE
ENGINE STARTED, DID THE
BAlTERY VOLTAGE INCREASE
SO THE VOLTMETER IS IN THE
GREEN ZONE?
2. STEXE-R
TEST 67 (Page 246)
3. MULTIMETER
REASON FOR QUESTtON
If the voltage increases, the
alternator is connected and
DOES THE HEATER COOLING
FAN WORK?
ST OPTIONS
1 TE!
I
TRY IT.
REASON FOR QUESTlON
The cooling fan should work when
the rotary switch is turned to RUN.
DOES THE WINDSHIELD WIPER
WORK WITH THE ROTARY SWITCH
IN THE RUN POSITION?
I
TE! ST OPTIONS
TRY IT.
The windshield wiper should
work with the rotary switch in the
RUN Position.
2-80
