TM 9--2350--292--20--1
0018 00--17
AUXILIARY POWER UNIT FAILS TO CRANK -- CONTINUED
0018 00
CONTINUED FROM STEP AK
no
yes
AL
Replace circuit breaker
CB1 (WP 0247 00).
Verify fault is corrected.
no
yes
AM
Replace lead 4W123--5
(WP 0247 00). Verify
fault is corrected.
Is continuity present?
CONTINUED ON NEXT PAGE
Is continuity present?
1. Disconnect 4W123--5 lead 65A from circuit
breaker CB1 connector.
2. Place multimeter leads across circuit
breaker CB1 connectors.
3. Check for continuity.
1. Reconnect harness 4W725 lead 65 to circuit
breaker CB1 connector.
2. Disconnect 4W123--5 lead 65A from START
switch S1.
3. Place multimeter leads across 4W123--5
lead 65A.
4. Check for continuity.
