STEP/SEQUENCE
RESULT
WHAT TO DO NEXT
TM 9-2320-363-20-1
Section 4
TROUBLESHOOTING CHARTS
D. CHART –2 - ENGINE CRANKS BUT WILL NOT START (Cont'd)
C 2-24
Check if Ignition Wire
(Circuit #2) is Open
Read voltage between battery side
Less than
Go to C2-27.
(hot side) of the 5 Amp ignition
11.5 volts (or 23 volts
fuse or circuit breaker (red lead)
if using a 24 volts
and a good ground (black lead).
ignition).
Greater than
Ignition line (ckt#3 or #439)
or equal to 11.5 volts
is open. Repair open. Then go
(or 23 volts if using
to C2-30.
a 24 volt ignition).
C 2-25
Check if Ignition Wire
is Shorted to Ground
Replace blown fuse or reset open
Fuse or circuit
Co to C2-26.
circuit breaker.
breaker is still okay.
Turn ignition on for at least 10
seconds.
Fuse blown or
Ignition line (ckt#439) is
Turn ignition off.
circuit breaker open.
shorted to ground. Repair short.
Check 5 Amp ignition fuse or
Then go to C2-30.
circuit breaker again.
C 2-26
Check If Ignition Fuse
or Circuit Breaker Is
Okay
Reconnect all harness connectors
Fuse or circuit
No short is currently present.
at ECM.
breaker 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: fuse/circuit breaker may
Turn ignition off.
have blown due to temporary
Check 5 Amp ignition fuse or
reverse voltage at the battery).
circuit breaker.
Go to C2-30.
Fuse blown or
Go to C2-11.
circuit breaker open.
Change 3 3-345.77
