I
TM 9-2320-387-24-l
ALTERNATOR
DIAGNOSTIC FLOWCHART
KNOWN INFO
1 OPTIONS
1. STEIlCE-R TESTS 67,68
(Pages 2496,2497)
2. MULTIMEI-ER
BAllERY
IS NOT CON-
NECTED TO ALTERNATC
WHEN ROTARY SWITCH
IS IN RUN POSITION
IS THE STARTER MOTOR VOLTAGE
THE SAME AS BATTERY VOLTAGE?
POSSIBLE PROBLEMS
REASON FOR QUESTION
PCB
The cable connecting the batteries
WIRING
to the alternator goes to the
starter first.
KNOWN INFO
. OPTIONS
3AlTERY IS NOT CON-
NECTED TO ALTERNATOf
WHEN ROTARY SWITCH
IS IN RUN POSITION.
BAllERIES
CONNECTED
TO STARTER
1. STE/ICE-R TESTS 67.89
(Pages 2496.2-506)
DISCONNECT THE BAlTERY
NEGATIVE CABLE. DISCONNECT
ENGINE CONNECTOR AT PCB.
RECONNECT THE BAITERY
NEGATIVE
CABLE. IS THERE BAITERY
VOLTAGE
AT PIN E OF THE PCB ENGINE
CONNECTORHARNESS?
2. MULTIMETER
REASON FOR QUESTION
This checks the wire from the
starter to the PCB engine
connector.
POSSIBLE PROBLEMS
PCB
WIRING
I
KNOWN INFO
TEST OPTIONS
REMOVE THE BATTERY NEGATIVE
‘. STUICE-R
TEST
g1
CABLE. IS THERE CONTINUITY
(Page 2-508)
BATTERY IS NOT CON-
NECTED TO ALTERNATOR
WHEN ROTARY SWlTCH IS
IN RUN POSITION.
BAl-fERIES
CONNECTED
TO STARTER
2. MULTIMETER
-c
I POSSIBLE PROBLEMS
REASON FOR QUESTION
If the box is connected to the
alternator, the relay in the PCB is
PCB
WIRING
SEE NOTE ON
RIGHT HAND
c
2-206
