KNOWN INFO
TEST OPTIONS
REASON FOR QUESTION
4.
e4. 24 VDC CIRCUITS DO NOT OPERATE (CONT)
NO
YES
If continuity is not present,
wire 1602 is faulty.
Continuity Test or
STE/ICE-R Test #91
Service drive lights OK.
Circuit breaker CB70 OK.
Batteries OK.
100 AMP reverse polarity relay
OK.
100 AMP reverse polarity relay
to power distribution panel
(PDP) 24 VDC cable OK.
Battery to 100 AMP reverse
polarity relay 24 VDC cable
OK.
200 AMP reverse polarity relay
OK.
200 AMP terminal block OK.
Battery to 200 AMP terminal
block 24 VDC cable assembly
OK.
200 AMP terminal block to
reverse polarity relay 24 VDC
battery cable OK.
200 AMP terminal block to
reverse polarity relay 24 VDC
load cable OK.
200 AMP terminal block to
power distribution panel
(PDP) 24 VDC cable OK.
POSSIBLE PROBLEMS
Faulty relay K2.
Faulty master power switch.
Faulty dashboard cable
assembly.
2-264 Change 1
TM 9-2320-365-20-1
Repair wire 1602 from terminal X1on
PDP to relay K2 socket 30 on PDP (para 2-40)
or replace WTEC II dashboard cable assembly
(para 7-10) or WTEC III dashboard cable
assembly (para 7-11).
CAUTION
Read CAUTION
on following page.
Is continuity present from
relay K2 socket 30 on PDP
to terminal X1 on PDP?
