TM 9-2350-287-20-1
2-19. TROUBLESHOOTING CHART (continued).
u.
AUXILIARY POWER UNIT (continued).
(2) ENGINE FAILS TO CRANK. All other electrical
systems operate (continued).
CONTINUED FROM A
B. Using multimeter, check continuity between
terminal E of generator and chassis ground.
Is continuity 0 OHMS?
Repair ground lead or replace harness
12329650 (para 18-22). Verify problem
is solved.
Replace generator (para 18-16).
Verify problem is solved.
CONTINUED FROM STEP A
C. 1. Disconnect lead 66 from output side of APU
starter relay.
2. Using multimeter, check continuity of lead 66
between starter relay and generator.
Is continuity indicated?
Replace cable assembly 11672191 (para
18-23). Verify problem is solved.
D. 1. Connect lead 66 to generator and output
side of APU starter relay.
2. Disconnect lead 66 from input side of APU
starter relay.
Continued on next page
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