4-15
Copyright 2017 Cummins Inc.
TABLE 4-5. 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.
*1. Install harness tool between A31 J4/P4. Reset
the control. Attempt to start and check for B+ at
J4-2. If no B+, remove F3 and check continuity.
If open, replace the fuse with one of the same
type and Amp rating (5 Amps). If F3 is OK,
check the B+ supply from the wiring harness.
1. Fuse F3 on the engine interface board
(A31) may be open, or B+ may not be
getting to F3.
Indicator(s) Possible Cause Corrective Action
“FAIL TO
CRANK”
(221)
message
Reset and
attempt to
start:
Start LED
DS11 on the
engine
interface board
does NOT
turn on.
NOTE:
These two
indications
suggest that
the PCC has
received a
start signal
and has NOT
sent a start
command to
the start output
(J4-2) on the
engine
interface
board.
2. To isolate:
Check for B+ at S13-1 and S13-2.
If there is B+ at S13-2, but not at S13-1
(and S13 is NOT in the emergency stop
position), then S13 is bad. Replace S13.
If there is no B+ at S13-2, disconnect
J3/P3, and check for B+ at A31 J3-2. If
there is no B+, replace A31.
If there is B+ at A31 J3-2, check continuity
from P3-2 to P3-6. If no continuity, repair
or replace as necessary.
2. Emergency Stop switch S13 or the
PCC door harness may be bad.
4. Engine interface board (A31) may be
bad.
*4. If there is a ground output at A32 J4-3, and yet
there is no B+ output at A31 J4-2; then A31 is
bad. Replace A31.
*3. Install harness tool between A32 J4/P4. Reset
the control. Attempt to start, and test for ground
output at A32 J4-3. If there is no ground output,
A32 is bad. 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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