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Page Title:
24 VDC CIRCUITS DO NOT OPERATE (CONT) |
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 TM 9-2320-366-20-1
e4. 24 VDC CIRCUITS DO NOT OPERATE (CONT)
KNOWN INFO
TEST OPTIONS
10.
Service drive lights OK.
Visual Inspection
Circuit breaker CB70 OK.
Is vehicle equipped with a
Batteries OK.
REASON FOR QUESTION
100 AMP reverse polarity
POSSIBLE PROBLEMS
This question eliminates
relay?
possible problems and
Faulty 100 AMP reverse polarity
determines where to continue
relay.
troubleshooting.
Faulty 100 AMP reverse polarity
relay to power distribution
panel (PDP) 24 VDC cable.
NO
Faulty battery to 100 AMP
reverse polarity relay 24 VDC
cable.
Faulty 200 AMP reverse
polarity relay.
Faulty 200 AMP terminal
YES
Go to step 16 of this fault.
block.
Faulty battery to 200 AMP
terminal block 24 VDC cable
assembly.
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.
2-284.2
Change 1
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