TM 9-2350-256-20-1
0055 00
CORRECTIVE ACTION Continued
4.
Reconnect APU and engine generator relays to voltage regulator wiring harness to engine regulator.
Disconnect wire 2 of APU and engine generator relays to voltage regulator wiring harness from engine
generator relay. Place red lead of multimeter on terminal of engine generator relay and black lead to
ground. Turn MASTER switch on, start engine, open generator cutout switch and check for voltage.
Turn engine and MASTER switch OFF, and close generator cutout switch. If voltage is present, go to
step 6. If voltage is not present, go to step 5.
5.
generator relay. Disconnect wire 62/2 of APU and engine generator relays to voltage regulator wiring
harness from APU generator relay. Place red lead of multimeter on wire 62/2 and black lead to
ground. Turn MASTER and APU generator switches on, and check for voltage. Turn APU generator
and MASTER switches OFF. If voltage is not present, repair/replace wire 62/2 of APU and engine
generator relays to voltage regulator wiring harness. If voltage is present, replace master relay (see WP
0151 00).
0055 00-5
