TM 5-3805-291-23-1
ELECTRICAL SYSTEM TESTS, INSPECTIONS, AND ADJUSTMENTS - CONTINUED
0013 00
USER DEFINED SHUTDOWN INPUT CIRCUIT TEST - CONTINUED
3.
Check status of user defined shutdown switch on ET.
a.
Connect ET to diagnostic connector. Start ET (WP 0005 00).
b.
Turn engine start switch to ON position (TM 5-3805-291-10).
c.
Operate user defined shutdown switch. Observe status for user defined shutdown switch on ET.
Expected Results. Status of user defined shutdown switch reads "ON" with user defined shutdown switch in
d.
SHUTDOWN position. Status of user defined shutdown switch reads "OFF" when user defined shutdown switch
is in RUN position.
If results are OK, there may be an intermittent problem. If problem is intermittent, refer to Electrical Con-
(1)
nector Inspection (WP 0022 00).
(2)
If results are not OK, proceed to step 4.
4.
Short wires together at user defined shutdown switch.
a.
Turn engine start switch to OFF position (TM 5-3805-291-10).
b.
Record position of wiring on user defined shutdown switch before removing wires.
c.
Disconnect wires from user defined shutdown switch.
d.
Create a short circuit at user defined shutdown switch between wire X919 WH and digital return wire H795 PK.
Leave wire X918 PU open.
e.
Turn engine start switch to ON position (TM 5-3805-291-10).
f.
Observe status of user defined shutdown switch on ET.
g.
Remove short between wire X919 WH and wire H795 PK.
h.
Create a short circuit at user defined shutdown switch between wire X918 PU and digital return wire H795PK.
i.
Observe status of user defined shutdown switch on ET.
j.
Turn engine start switch to OFF position (TM 5-3805-291-10).
k.
Remove wire short.
Expected Results. Status of user defined shutdown switch reads "OFF" when wire X919-WH and wire H795 PK
l.
are shorted together. User defined shutdown switch status reads "ON" when wire X918 PU and wire H795 PK are
shorted together.
(1)
If results are OK, problem is not with harness or ECM. Install new emergency shutdown switch.
(2)
If results are not OK, proceed to step 5.
0013 00-70