TM 9--2350--292--20--1
0175 00--4
VEHICLE HORN FAILS TO OPERATE -- CONTINUED
0175 00
Is 24 V dc present?
1. Disconnect harness 4W105 lead 25 from
switch panel side of horn switch.
2. Turn MASTER switch ON
(TM 9--2350--292--10).
3. Place multimeter red lead in lead 25 connector
socket and black lead to ground. Check for
voltage.
4. Turn MASTER switch OFF
(TM 9--2350--292--10).
no
yes
no
yes
F
G
CONTINUED ON NEXT PAGE
1. Disconnect harness 4W105 P1 from switch
panel.
2. Turn MASTER switch ON
(TM 9--2350--292--10).
3. Place multimeter red lead on harness 4W105
P1 socket N and black lead to ground. Check
for voltage.
4. Turn MASTER switch OFF
(TM 9--2350--292--10).
Is 24 V dc present?
Repair (WP 0290 00) or
replace (WP 0314 00)
harness 4W100.
Verify fault is corrected.
Go to Step H.
CONTINUED FROM STEP D