4-14
Copyright 2017 Cummins Inc.
TABLE 4-4. ENGINE DOES NOT CRANK—LOCAL OR REMOTE RUN
WARNING
Many troubleshooting procedures present hazards that can result in severe personal inju-
ry or death. Only qualified service personnel with knowledge of fuels, electricity, and machinery haz-
ards should perform service procedures. Review Important Safety Instructions page.
Indicator(s) Possible Cause Corrective Action
“FAIL TO
CRANK”
(221)
message
Reset and
attempt to
start:
Start LED
DS11 on the
engine
interface board
turns on.
NOTE:
These two
indications
suggest that
the PCC has
received a
start signal
and has sent a
start command
to the start
output (J4-2)
on the engine
interface
board.
2. Starter could be bad.
5. If there is continuity at A37 J7-5/J7-6,
there may be an open between A37
and A31, an open between A37 and
K4, or A31 may be bad.
2. Reset the control. Attempt to start, and test for
B+ at the starter. If there is B+ at the starter, the
starter could be bad. Test starter (see engine
service manual). Replace the starter.
3. Reset the control. Attempt to start, and test for
B+ into and out of start solenoid contacts. If
there is B+ in, but not out, check for B+ at the
start solenoid coil. If there is B+ at the coil,
check ground connection. If ground connection
is good, the start solenoid is bad. Replace the
start solenoid.
If there is B+ into and out of the start solenoid
contacts, check for an open between the start
solenoid contacts and the starter. If there is no
B+, go to the next step.
3. If there is no B+ at the starter, start so-
lenoid K4 could be bad.
4. If there is no B+ at the start solenoid
coil (K4), the backup start disconnect
contacts in the regulator output mod-
ule (A37) could be open (indicating
that A37 is bad).
*4. Disconnect J7/P7 at the regulator output mod-
ule. Test for continuity at A37 J7-5/J7-6. If there
is no continuity, the regulator output module is
bad. Replace A37.
*5. If there is continuity at A37 J7-5/J7-6, reset the
control, attempt to start, and check for B+ at
A37 P7-5.
If there is B+ at P7-5, there may be an open be-
tween start solenoid coil (K4) and A37. If there
is no B+ at P7-5, check for B+ at J4-2 on the en-
gine interface board (A31) while attempting to
start.
If there is B+ at A31 J4-2, check for an open be-
tween A37 and A31.
If there is no B+ at A31 J4-2, (and DS11 is on)
the engine interface board is bad. Replace A31.
1a. Recharge or replace the battery. Specific gravi-
ty for a fully charged battery is approximately
1.260 at 80 F (27 C).
1b. Clean and tighten or replace the battery cable
connectors and cables at the battery and the
generator set.
1c. Adjust charge rate of battery charging circuit.
1d. Replace engine DC alternator if normal battery
charging voltage (12 to 14 VDC) is not obtained.
1. Insufficient battery voltage. Check the
following conditions:
a. Batteries not charged.
b. Battery connections loose or
dirty.
c. Insufficient battery charging volt-
age.
d. Engine DC alternator could be
bad.
*CAUTION: Wearing a wrist strap, set S12 to Off and A32 S5 to Standby before connecting/disconnecting harness plugs.
6. The mag pickup signal is not being
sensed.
6. Refer to the mag pickup shutdown message
(220).
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