TM 9--2350--292--20--1
APU CONTROL BOX HIGH AIR TEMP INDICATOR DOES NOT LIGHT --
CONTINUED
0023 00
CONTINUED FROM STEP F
no
yes
Is continuity present?
no
yes
1. Place one multimeter lead on lead 493
indicator connector socket and the other
multimeter lead on harness 4W725 receptacle
pin J. Check for continuity.
2. Connect harness W725 to harness W700.
G
1. Remove APU control box from vehicle
(WP 0247 00).
2. Remove APU control box rear panel
(WP 0247 00).
3. Disconnect lead 421 from FUEL SHUTOFF
switch S3.
4. Remove connector lead 27 from HIGH AIR
TEMP indicator L1.
5. Place one multimeter lead on lead 421
connector socket and the other multimeter
lead on lead 27 indicator connector socket.
Check for continuity.
6. Connect lead 421 to switch S3.
Is continuity present?
H
Repair (WP 0290 00) or
replace (WP 0247 00)
harness 4W725. Verify
fault is corrected.
Repair (WP 0247 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
0023 00--5/6 blank
