TP-5737 5/01 35Section 5 Decision-Makert 3+ Troubleshooting
Check for DC voltage at the F2 fuse
(3 amp). See Figure 5-20. Voltage
at the fuse indicates the fuse is
good. Is voltage present?
Check the engine start circuit
(P1 harness, starter, solenoid,
battery connections, etc.). Is
the start circuit okay?
Engine does not crank with the generator
set master switch in the RUN position.
Is the battery fully charged? Yes
No
Charge the battery and attempt
restart. If the engine does not
crank, continue the troubleshooting
sequence.
Press the lamp test
button. Do lamps light?
No
Check the P3/P4 harness and
connections. Are the connections okay?
No
Replace the P3/P4
harness.
Replace the inoperative
indicator panel circuit board.
Yes
Is the controller LED4 lit?
Yes
Is the emergency stop switch (controller
or remote) activated? See emergency
stopping in Section 2, Operation.
Do the controller’s LED2 and LED3 light
with the generator set master switch in
the RUN position?
Yes
Was there a fault shutdown?
Replace the
circuit board.
Correct the
fault.
Repair the
inoperative
component.
Replace the
circuit board.
Reset the emergency stop
switch (controller or remote). Is
LED4 lit?
Check the fuse.
Is the fuse okay?
Replace the fuse. If the fuse
blows again, refer to Section
5.3.2, Fuses.
Check the P1 connector/harness.
Check if the battery connections
are loose or reversed.
Replace the circuit board.
No Yes
No
No Yes
No
YesNo
Yes
No
No
Yes
Yes
Yes
Place the test jumper between TB1-1
and TB1-1A. Is LED4 lit? Remove
the test jumper before proceeding.
No
No
Yes
Repair/replace the
inoperative emergency
stop switch (controller or
remote.)
Figure 5 -18 Engine Does Not Crank
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