TM 9-2350-256-20-1
0044 00
CORRECTIVE ACTION Continued
6.
Reconnect wire 486 to circuit breaker side of manifold preheat switch. Disconnect wire 486 from
bulkhead side of manifold preheat switch. Place red lead of multimeter on switch terminal and black
lead to ground. Turn MASTER switch on, push START and manifold preheat switches, and check for
voltage. Turn MASTER switch OFF. If voltage is present, go to step 7. If voltage is not present, replace
manifold preheat switch assembly (see WP 0122 00).
7.
Reconnect switch panel to neutral safety switch to bulkhead wiring harness to main switch panel. Open
air inlet doors (TM 9-2350-256-10). Disconnect bulkhead to engine harness and starter relay wiring
harness from bulkhead disconnect. Place red lead of multimeter on pin B of wire 486 and black lead to
ground. Turn MASTER switch on, push START and manifold preheat switches, and check for voltage.
Turn MASTER and manifold preheat switches OFF. If voltage is present, go to step 8. If voltage is not
present, replace/repair wire 486 of switch panel to neutral safety to bulkhead wiring harness.
0044 00-6
