TM 9--2350--292--20--1
0012 00--4
AUXIILIARY POWER UNIT FUEL SOLENOID FAILS TO ENERGIZE --
CONTINUED
0012 00
CONTINUED FROM STEP C
Is 24 V dc present?
1. Reconnect harness 4W700 P1.
2. Open air intake grilles above battery
compartment (TM 9--2350--292--10).
3. Disconnect harness 3W702 P1 at bulkhead
disconnect.
4. Turn MASTER switch and FUEL SHUT OFF
switch ON (TM 9--2350--292--10).
5. Place multimeter red lead on bulkhead
receptacle pin F and black lead to ground.
Check for voltage.
6. Turn MASTER switch OFF
(TM 9--2350--292--10).
H
Is 24 V dc present?
1. Reconnect harness 3W702 P1 to bulkhead
disconnect.
2. Disconnect harness 3W711 P1 at APU engine
disconnect.
3. Turn MASTER switch ON
(TM 9--2350--292--10).
4. Place multimeter red lead in harness 3W702 J1
socket B and black lead to ground. Check for
voltage.
5. Turn MASTER switch OFF
(TM 9--2350--292--10)
I
no
Repair (WP 0290 00) or
replace (WP 0311 00)
harness 3W702. Verify fault
is corrected.
yes
no
yes
Repair (WP 0290 00) or
replace (WP 0332 00)
harness 4W700. Verify
fault is corrected.
Fault corrected.
END OF TASK
