TM 9-2350-287-20-1
2-19. TROUBLESHOOTING CHART (continued).
d. ENGINE, ELECTRICAL SYSTEM (continued).
(5) ENGINE CRANKS, BUT WILL NOT START IN
COLD WEATHER OR GLOW PLUG SYSTEM
FAILS TO OPERATE. All other electrical systems
operate.
Initial Setup:
Tools/Test Equipment:
Equipment Conditions:
• Digital multimeter (DMM) (Item 13, Appendix 1)
• MASTER switch set to OFF (refer to TM
•General mechanic’s tool kit (Item 24,
9-2350-287-10).
Appendix 1)
• Open engine intake grille (refer to
TM 9-2350-287-10).
Personnel Required: Two
NOTE
• Instead of using mutlimeter for voltage
check, STE/lCE troubleshooting,
INDIVIDAL BATTERY VOLTAGE
TEST-TEST 89 maybe performed.
• Instead of using multi meter
for continuity check, STE/lCE
troubleshooting, TEST 91 may
be performed.
• Glow plug controller is programmed
n o t t o o p e r a t e a t a m b i e nt
temperatures of below 50°F and
higher. The controller can be tricked
into thinking the ambient temperature
is 50°F if an ice bag is placed on the
controller.
A. 1. Disconnect harness 12268389 connector
from glow plug controller.
2. Place multimeter red lead on pin A of glow
plug controller and ground black lead.
3. Have assistant turn MASTER switch ON
and hold GLOW PLUG switch ON (refer to TM
9-2350-287-1 O).
4. Check for 24 ± 3 vdc.
5. Repeat above steps for pins B through H.
6. Turn MASTER switch OFF (refer to TM 9-
2350-287-1 O).
Is voltage indicated at all 8 pins?
Continued on next page
2-74
