6-4 Generator/Controller Troubleshooting TP-5353 8/94
Engine Will Not Crank
Check for DC voltage at Fuse
F2 (3 amp). See Figure 6-4.
Voltage at fuse indicates fuse
is good. Is voltage present?
Check engine start circuit (P1
harness, starter, solenoid,
battery connections, etc.). Is
start circuit okay?
Engine will not crank with generator
master switch in RUN position.
Is battery fully charged? Yes
No
Charge battery and attempt restart.
If engine will not crank, continue
troubleshooting sequence.
Press lamp test button.
Do lamps light?
No
Check P3/P4 harness and connections.
Are connections okay?
No
Replace P3/P4 harness. Replace defective indicator
panel circuit board.
Yes
Is controller LED4 lit?
Yes
Is emergency stop switch (controller
or remote) activated? See emergency
stopping in Section 2—Operation.
Do controller LED2 and LED3 light with
generator master switch in RUN position?
Yes
Was there a fault shutdown?
Replace circuit
board.
Correct fault.
Repair defective
component.
Replace
circuit board.
Reset emergency stop switch
(controller or remote). Reset air
damper on 200-1600 kW Detroit
Diesel models only. Is LED4 lit?
Check fuse. Is
fuse okay?
Replace fuse. If fuse blows
again, refer to Fuses
earlier in this section.
Check P1 connector/harness.
Check if battery connections
are loose or reversed.
Replace circuit board.
No Yes
No
No Yes
No
YesNo
Yes
No
No
Yes
Yes
Yes
Place test jumper between TB1-1
and TB1-1A. Is LED4 lit? Remove
test jumper before proceeding.
No
No
Yes
Repair/replace defective
emergency stop switch
(controller or remote.)
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