4-19
Copyright 2017 Cummins Inc.
TABLE 4-9. ENGINE DOES NOT CRANK—LOCAL 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
DOES NOT
appear on
digital display
−and:
Run LED DS4
on the engine
interface board
(A31) is off−
NOTE:
This condition
suggests that
the start input
is NOT getting
from the
Run/Off/ Auto
switch (S12) to
the engine
interface board
(A31) to
enable the
remote start
logic on the
digital board.
The start input is not getting from the Run/
Off/ Auto select switch (S12) to A31 (indi-
cating that S12, A31, or the harness is bad.
1. Run/Off/ Auto select switch S12 or the
wiring harness may be bad.
*1. Check continuity to ground at A31 J3-11. If
ground is not present, replace A31. If ground is
present, place S12 in Run and check continuity
from P3-11 to P3-12. If no continuity, isolate to
switch or wiring harness. Repair as necessary.
If there is continuity, A31 may be bad.
2. Engine interface board A31
may be bad.
*2. Install harness tool between A32 J4/P4. Check
the 16 volt (nominal) supply at A32 J4-16.
If the voltage is present at A32 J4-16, and
ground is present at A31 J3-12—and yet A31
DS5 is off, replace A31.
3. If there is no +16 volt supply voltage at A32
J4-16, replace A32.
3. Digital board A32 may be bad.
*CAUTION: Wearing a wrist strap, set S12 to Off and A32 S5 to Standby before connecting/disconnecting harness plugs.
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