TM 9--2350--292--20--1
0012 00--2
AUXIILIARY POWER UNIT FUEL SOLENOID FAILS TO ENERGIZE --
CONTINUED
0012 00
no
yes
CONTINUED ON NEXT PAGE
1. Remove APU control box from the vehicle (WP
0247 00).
2. Remove control box rear panel (WP 0247 00).
3. Disconnect lead 421 from switch S3.
4. Disconnect lead 4W123--6 from switch S3.
5. Set FUEL SHUT OFF switch to the ON position
(TM 9--2350--292--10).
6. Place multimeter leads across switch S3
connector pins. Check for continuity.
Is continuity present?
Replace FUEL SHUT OFF
switch (WP 0247 00).
Verify fault is corrected.
CONTINUED FROM STEP B
Is continuity present?
1. Turn FUEL SHUTOFF switch to ON
(TM 9--2350--292--10).
2. Place one multimeter lead on pin N of control
box connector and other lead on pin F of control
box connector. Check for continuity.
no
yes
Go to Step H.
C
D
