TM 9--2350--292--20--1
0018 00--12
AUXILIARY POWER UNIT FAILS TO CRANK -- CONTINUED
0018 00
CONTINUED FROM STEP AA
Is 24 V dc present?
AB
no
yes
AC
CONTINUED ON NEXT PAGE
Repair (WP 0290 00) or
replace (WP 0649 00)
harness 3W711. Verify
fault is corrected.
1. Disconnect harness 3W702 J1 from harness
3W711 P1.
2. Place multimeter red lead to harness 3W702
J1 socket E and black lead to ground.
3. Turn MASTER switch ON
(TM 9--2350--292--10).
4. Turn PREHEAT switch to MOM ON
(TM 9--2350--292--10).
5. Turn START switch to MOM ON.
6. Check for voltage.
7. Turn MASTER switch OFF.
8. Reconnect harness 3W702 J1 to harness
3W711 P1.
Go to Step AI.
Is 24 V dc present?
1. Place multimeter red lead to starter relay
terminal X1 and black lead to ground.
2. Turn MASTER switch ON
(TM 9--2350--292--10).
3. Turn PREHEAT switch to MOM ON
(TM 9--2350--292--10).
4. Turn START switch to MOM ON
(TM 9--2350--292--10).
5. Check for voltage.
6. Turn MASTER switch OFF.