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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)
CAUTION
Read CAUTION
KNOWN INFO
TEST OPTIONS
on following page.
16.
Continuity Test or
Circuit breaker CB70 OK.
STE/ICE-R Test #91
Battery(ies) OK.
Is continuity present from
REASON FOR QUESTION
Cab to chassis ground strap
terminal lug TL80 to
If continuity is not present,
OK.
terminal X2 on PDP?
200 AMP terminal block to
PDP to cab ground cable OK.
PDP is 12 VDC cable is faulty.
Shunt OK.
Starter to shunt 24 VDC cable
OK.
Battery to shunt cable
NO
assembly OK.
Starter to chassis ground
cable OK.
200 AMP terminal
block OK.
Replace 200 AMP terminal
YES
block to PDP 12 VDC cable
POSSIBLE PROBLEMS
(para 20-54).
Faulty 200 AMP reverse
polarity relay.
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.
2-266.28
Change 1
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