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Page Title:
12 VDC AND 24 VDC CIRCUITS DO NOT OPERATE (CONT) |
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 TM 9-2320-366-20-1
e3. 12 VDC AND 24 VDC CIRCUITS DO NOT OPERATE (CONT)
KNOWN INFO
TEST OPTIONS
3.
Continuity Test or
Circuit breaker CB70 OK.
STE/ICE-R Test #91
Battery(ies) OK.
Is continuity present from
Cab to chassis ground strap
REASON FOR QUESTION
terminal lug TL48 to
OK.
This question eliminates
terminal lug TL62?
PDP to cab ground cable OK.
possible problems and
determines where
POSSIBLE PROBLEMS
troubleshooting continues.
Faulty dashboard cable
assembly.
Faulty shunt.
NO
Faulty starter to shunt 24 VDC
cable.
Faulty battery to shunt cable
assembly.
Faulty starter to chassis
ground cable.
YES
Go to step 8 of this fault.
Faulty 100 AMP reverse
polarity relay.
Faulty battery to 100 AMP
reverse polarity relay 12 VDC
cable.
Faulty 100 AMP reverse
polarity relay to PDP 12 VDC
cable.
Faulty 200 AMP reverse
polarity relay.
Faulty 200 AMP terminal
block.
Faulty 200 AMP terminal block
to PDP 12 VDC cable.
Faulty 200 AMP terminal block
to reverse polarity relay 12
VDC load cable.
Faulty 200 AMP terminal block
to reverse polarity relay 12
VDC battery cable.
Faulty battery to 200 AMP
terminal block 12 VDC cable
assembly.
2-266.2
Change 1
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