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Page Title:
CHART - 2 - ENGINE CRANKS BUT WILL NOT START (Cont'd) |
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 TM 9-2320-364-20-1
Section IV. TROUBLESHOOTING CHARTS (Cont.)
D. CHART - 2 - ENGINE CRANKS BUT WILL NOT START (Cont'd)
-
STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
C 2- 24
-
Check if Ignition Wire
(Circuit #2) is Open
Read voltage between battery side
Less than
Go to C 2--27.
(hot side) of the DDEC ignition
11.5 volts.
circuit breaker (CB13)
(red lead) and a good ground
(black lead).
Greater than
Ignition line (ckt #439)
or equal to 11.5 volts.
is open. Repair open. Then go
to C 2--30.
C 2- 25
-
Check if Ignition Wire
is Shorted to Ground
Reset open circuit breaker.
Circuit breaker
Go to C 2--26.
is still okay.
Turn ignition on for at least 10
seconds.
Turn ignition off.
Circuit breaker
Ignition line (ckt #439) is
Check DDEC ignition
open.
shorted to ground. Repair short.
circuit breaker (CB13) again.
Then go to C 2--30.
C 2- 26
-
Check if Ignition
Circuit Breaker is
Okay
Reconnect all harness connectors
Circuit breaker
No short is currently present.
at ECM.
is still okay.
(WARNING: If there is an
Attempt to start.
intermittent short, engine will shut
If engine starts, run engine for at
down again if not repaired. Also
least one minute.
note circuit breaker may
Turn ignition off.
have blown due to temporary
Check DDEC ignition circuit
reverse voltage at the battery.)
breaker (CB13).
Go to C 2--30.
Circuit breaker open.
Go to C 2--11.
2-571
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