KNOWN INFO
TEST OPTIONS
13.
Is continuity present from
terminal lug TL99 to
terminal lug TL47?
REASON FOR QUESTION
YES
NO
Continuity Test or
STE/ICE-R Test #91
Circuit breaker CB70 OK.
Battery(ies) OK.
Cab to chassis ground strap
OK.
PDP to cab ground cable OK.
Shunt OK.
Starter to shunt 24 VDC cable
OK.
Battery to shunt cable
assembly OK.
Starter to chassis ground
cable OK.
100 AMP reverse polarity relay
to PDP 12 VDC cable OK.
POSSIBLE PROBLEMS
Faulty 100 AMP reverse
polarity relay.
Faulty battery to 100 AMP
reverse polarity relay 12 VDC
cable.
If continuity is not present,
battery to 100 AMP reverse
polarity relay 12 VDC cable
is faulty. If continuity is
present, 100 AMP reverse
polarity relay is faulty.
Replace 100 AMP reverse polarity relay
(para 7-27).
Replace battery to 100 AMP reverse
polarity relay 12 VDC cable (para 7-67).
TM 9-2320-365-20-1
2-256.22 Change 1
e3. 12 VDC AND 24 VDC CIRCUITS DO NOT OPERATE (CONT)