Section 4
TM 9-2320-363-20-1
TROUBLESHOOTING CHARTS
E. CODE 6X (X = 1 to 6) l INJECTOR RESPONSE TIME TOO LONG (Cent’d.)
STEP/SEQUENCE
6X-1 3 Check for Short
l Replace fuse(s).
l Run engine to see if fuses
blow again.
6X-1 4 Check ECM Power
l Turn ignition off.
l Disconnect the 6-way, power
harness connector.
l Read voltage on socket A (red
lead) to a good ground (black
lead).
l Also read voltage On Sockets B, E
and F (red lead) to a good
ground.
6X-1 5 Check for Open
l Read voltage on socket E or F (red
lead) to socket C or D (black
lead) of the 6-way, power harness
connector.
l Also read voltage on Socket A or
B (red lead) to socket C or D
(black lead) of the 6-way, power
harness connector.
F u s e s
b l o w n .
F u s e s a r e o k a y .
F u s e s b l o w n .
F u s e s a r e o k a y .
Greater than
or equal to 11.5 volts
for each reading.
Less than
11.5 volts on any reading.
B o t h r e a d i n g s —
WHAT TO DO NEXT
-Go to 6X-13.
-Go to 6X-15.
-Go to 6X-14.
-Go to 6X-30.
-Go to 6X-15.
- Short exists between Bank A
Power (ckt #240) or Bank B
Power (ckt #241) and ground.
Contact Direct Support.
-GO to 6X-16.
are greater than or
equal to 11.5 volts.
Either reading
-Bank A Power (ckt #240) or
is less than
Bank B Power (ckt #241 ) is
11.5 volts.
open. Contact Direct Support.
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