TM 9--2350--292--20--10172 00--4WARNING HORN DOES NOT SOUND WHEN ENGINE IS RUNNING ANDSYSTEM WARNING LIGHT IS LIT -- CONTINUED0172 00CONTINUED FROM STEP CCONTINUED ON NEXT PAGEDIs 24 V dc present?noyes1. Remove switch panel and reconnect groundwire to switch panel (WP 0242 00).2. Disconnect harness 4W117 leads 26A fromhorn 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 wiringharness 4W117 lead 26A connector (one at atime) and black lead to ground. Check forvoltage.6. Shut engine down and turn MASTER switchOFF (TM 9--2350--292--10).Repair (WP 0290 00) orreplace (WP 0242 00)lead 26A. Verify fault iscorrected.E Place horn override switch in the down (closed)position and place one multimeter lead on eachswitch connector pin. Check for continuity.Is continuity present?noyesReplace overrideswitch (WP 0242 00).Verify fault is corrected.
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