TM 9-2350-287-20-1
2-19. TROUBLESHOOTING CHART (continued).
h. LIGHTS (continued).
(5) GLOW PLUG WAIT LIGHT FAILS TO OPERATE,
ENGINE STARTS IN COLD WEATHER (BELOW
50° F). All other lights operate (continued).
CONTINUED FROM A
B. 1. Install light bulb and lens in glow plug
indicator.
2. Loosen six screws and cover from driver’s
instrument panel.
3. Disconnect wire 486 from indicator lamp
on back of the driver’s instrument panel.
4. Connect multimeter red lead in wire 486
and ground black lead.
5. Turn MASTER switch ON and hold GLOW
PLUG switch ON (refer to TM 9-2350-287-
10).
6. Check for 24 ± 3 vdc.
7. Turn MASTER switch GLOW PLUG switch
OFF (refer to TM 9-2350-287-10).
Is voltage indicated?
Replace glow plug wait light socket
(para 7-9). Verify problem is solved.
C. 1. Disconnect wire harness 12260287 from
bulkhead disconnect.
2. Place one multimeter lead in pin C of
harness 12260287 bulkhead connector and
place other lead on wire 486 of harness
12260287 and check for continuity.
Is continuity indicated?
Repair wire 486 or replace harness
12260287 (para 7-56). Verify problem is
solved.
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