KNOWN INFO
TEST OPTIONS
REASON FOR QUESTION
Is continuity present from
terminal lug TL166 to
terminal lug TL168?
If continuity is not present,
200 AMP terminal block to
reverse polarity relay 24 VDC
battery cable is faulty.
e4. 24 VDC CIRCUITS DO NOT OPERATE (CONT)
NO
YES
Continuity Test or
STE/ICE-R Test #91
Replace 200 AMP terminal block to
reverse polarity relay 24 VDC
battery cable (para 20-67).
19.
Faulty 200 AMP reverse
polarity relay.
Faulty 200 AMP terminal block
to reverse polarity relay 24
VDC battery cable.
Faulty 200 AMP terminal block
to reverse polarity relay 24
VDC load cable.
Faulty 200 AMP terminal block
to power distribution panel
(PDP) 24 VDC cable.
Service drive lights OK.
Circuit breaker CB70 OK.
Batteries OK.
200 AMP terminal block OK.
Battery to 200 AMP terminal
block 24 VDC cable assembly
OK.
POSSIBLE PROBLEMS
TM 9-2320-365-20-1
2-274.20 Change 1