TM 9--2350--292--20--1
0023 00--3
APU CONTROL BOX HIGH AIR TEMP INDICATOR DOES NOT LIGHT --
CONTINUED
0023 00
CONTINUED FROM STEP B
no
yes
CONTINUED ON NEXT PAGE
Is continuity present?
no
yes
1. Reconnect harness 3W704 lead 493 to lead
3W705.
2. Open air intake grilles over battery
compartment (TM 9--2350--292--10).
3. Disconnect harness 3W702 P1 at bulkhead
disconnect.
4. Place one multimeter lead on harness 3W702
P1 socket D and other multimeter lead on
harness 3W702 J2 pin C at the APU engine
disconnect. Check for continuity.
Repair (WP 0290 00) or
replace (WP 0311 00)
harness 3W702. Verify
fault is corrected.
D
1. Remove jumper wire from harness 3W704.
2. Open forward air intake grilles
(TM 9--2350--292--10).
3. Disconnect harness 3W704 connector P1 at
APU engine disconnect.
4. Place one multimeter lead on harness 3W704
P1 socket C and the other multimeter lead on
harness 3W704 lead 493 connector socket.
Check for continuity.
Is continuity present?
E
Repair (WP 0290 00) or
replace (WP 0643 00)
harness 3W704. Verify
fault is corrected.
