TM 9--2350--292--20--1
0009 00--7
AUXILIARY POWER UNIT FAILS TO CRANK -- CONTINUED
0009 00
P
Is continuity present?
CONTINUED FROM STEP K
no
yes
CONTINUED ON NEXT PAGE
Q
Is continuity present?
no
yes
Place one multimeter lead on control box recep-
tacle pin A and place other multimeter lead on
lead 487 connector socket for CB2. Check for
continuity.
R
Is continuity present?
no
yes
1. Reconnect lead 487 at CB2.
2. Disconnect lead 4W123--4 at switch S2.
3. Place one multimeter lead on lead 4W123--4
connector socket for CB2 and place the other
multimeter lead on lead 4W123--4 at connector
socket for the switch S2. Check for continuity.
Replace lead 4W123--4
(WP 0247 00). Verify
fault is corrected.
1. Disconnect lead 487 from CB2.
2. Disconnect lead 4W123--4 from other side of
CB2.
3. Place multimeter leads across CB2
connector pins. Check for continuity.
Replace CB2 (WP 0247 00).
Verify fault is corrected.
Repair (WP 0290 00) or
replace (WP 0247 00)
wiring harness 4W725.
Verify fault is corrected.
