TM 9--2350--292--20--1
0172 00--4
WARNING HORN DOES NOT SOUND WHEN ENGINE IS RUNNING AND
SYSTEM WARNING LIGHT IS LIT -- CONTINUED
0172 00
CONTINUED FROM STEP C
CONTINUED ON NEXT PAGE
D
Is 24 V dc present?
no
yes
1. Remove switch panel and reconnect ground
wire to switch panel (WP 0242 00).
2. Disconnect harness 4W117 leads 26A from
horn override switch.
3. Place horn override switch in the up (open)
position.
4. Turn MASTER switch ON and start engine
(TM 9--2350--292--10).
5. Place red multimeter lead in each wiring
harness 4W117 lead 26A connector (one at a
time) and black lead to ground. Check for
voltage.
6. Shut engine down and turn MASTER switch
OFF (TM 9--2350--292--10).
Repair (WP 0290 00) or
replace (WP 0242 00)
lead 26A. Verify fault is
corrected.
E Place horn override switch in the down (closed)
position and place one multimeter lead on each
switch connector pin. Check for continuity.
Is continuity present?
no
yes
Replace override
switch (WP 0242 00).
Verify fault is corrected.