TM 9-2350-256-20-1
0066 00
CORRECTIVE ACTION
WARNING
Remove all jewelry such as rings, dog tags, bracelets, etc. If jewelry contacts a metal surface a direct
short may result in instant heating of tools, damage to equipment, and injury or death to personnel.
1.
Disconnect gage panel to bulkhead wiring harness from warning horn relay. Place red lead of multi-
meter in socket A of wire 26 and black lead to ground. Turn MASTER switch on, start engine, set to
idle, and check for voltage. Turn engine and MASTER switch OFF. If voltage is present, go to step 7.
If voltage is not present, go to step 2.
2.
Reconnect gage panel to bulkhead wiring harness to warning horn relay. Open air inlet doors (TM
9-2350-256-10). Disconnect bulkhead to APU, master relay, and rigger's lights wiring harness from
bulkhead. Place red lead of multimeter in socket H of wire 26 and black lead to ground. Turn MASTER
switch on, start engine, set to idle, and check for voltage. Turn engine and MASTER switch OFF. If
voltage is present, go to step 3. If voltage is not present, go to step 4.
0066 00-3
