TM 9--2350--292--20--1
APU CONTROL BOX LOW OIL PRESS INDICATOR DOES NOT LIGHT WHEN
APU OIL PRESSURE IS LOW -- CONTINUED
0015 00
F
Is continuity present?
CONTINUED FROM STEP E
no
yes
1. Reconnect harness 4W700 connector P2 at
bulkhead disconnect.
2. Remove APU control box from the vehicle
(WP 0247 00).
3. Turn FUEL SHUT OFF switch ON
(TM 9--2350--292--10).
4. Place one multimeter lead on control box
receptacle pin N and the other multimeter lead
on pin F. Check for continuity.
G
Is continuity present?
no
yes
1. Remove APU control box rear panel
(WP 0247 00).
2. Disconnect lead 421 from switch S3.
3. Remove connector from indicator L2.
4. Place one multimeter lead on lead 421
connector socket and the other multimeter lead
on indicator L2 lead 27 connector socket.
Check for continuity.
Repair (WP 0290 00) or
replace (WP 0247 00)
harness 4W725. Verify
fault is corrected.
Go to STEP D of trouble-
shooting procedures for
AUXILIARY POWER
UNIT FUEL SOLENOID
FAILS TO ENERGIZE
(WP 0012 00).
Replace LOW OIL
PRESS indicator socket
assembly (WP 0247 00).
Verify fault is corrected.
END OF TASK
0015 00--5/6 blank
