TM 9--2350--292--20--1
APU CONTROL BOX HIGH AIR TEMP INDICATOR DOES NOT LIGHT --
CONTINUED
0014 00
CONTINUED FROM STEP G
no
yes
Is continuity present?
no
yes
Place one multimeter lead on lead 493 indicator
connector socket and the other multimeter lead
on harness 4W725 receptacle pin J. Check for
continuity.
H
1. Remove APU control box rear panel
(WP 0247 00).
2. Disconnect lead 421 from switch S3.
3. Remove connector from indicator L1.
4. Place one multimeter lead on lead 421
connector socket and the other multimeter
lead on lead 27 indicator connector socket.
Check for continuity.
Is continuity present?
I
Repair (WP 0290 00) or
replace (WP 0247 00)
harness 4W725. Verify
fault is corrected.
Repair (WP 0290 00) or
replace (WP 0247 00)
harness 4W725. Verify
fault is corrected.
Replace HIGH AIR
TEMP indicator socket
assembly (WP 0247 00).
Verify fault is corrected.
END OF TASK
0014 00--5/6 blank
