TM 9-2350-256-20-1
0092 00
CORRECTIVE ACTION Continued
18. Reconnect wire 26B to Y-connector behind gage panel. Open air inlet doors. Disconnect bulkhead
to APU, master relay and rigger's lights wiring harness from bulkhead disconnect. Place red lead of
multimeter in socket H of wire 26 and black lead to ground. Turn MASTER switch on and check for
voltage. Turn MASTER switch OFF. If voltage is present, repair/replace wire 26 of APU control box to
foot dimmer switch and bulkhead wiring harness (see WP 0228 00 for dual voltage; 0229 00 for single
voltage). If voltage is not present, go to step 19.
19. Reconnect bulkhead to APU, master relay, and rigger's lights wiring harness to bulkhead. Remove
engine deck (see WP 0336 00). Disconnect wire 26 of bulkhead to APU, master relay and rigger's
lights wiring harness from connector. Place red lead of multimeter in wire 26 and black lead to ground.
Turn MASTER switch on and check for voltage. Turn MASTER switch OFF. If voltage is present,
repair/replace wire 26 of bulkhead to APU, master relay, and rigger's lights wiring harness (see WP
0224 00 for dual voltage; 0225 00 for single voltage). If voltage is not present, go to step 20.
0092 00-12
