TP-6591 10/1318 Section 2 Operation
Fault Shutdowns
Code Description
Sensing
Mechanism
Active
State
Inhibit
Time
Delay
Time
Default
Setting
Check
Over crank
(fault)
Overcrank
shutdown occurs
after 3
unsuccessful
starting attempts.
Fail to start Excessive
crank cycles
0sec 7 sec on/
15 sec off
3 crank
cycles
Check t he fuel supply and battery.
Also check for loose connections.
Contact an authorized
distributor/dealer for service if
problem continues.
Locked rotor
(fault)
Overcrank (locked
rotor) shutdown
ECM data Excessive
locked rotor
cycles
0sec 3sec 3sec Contact an authorized
distributor/dealer for service if
problem continues.
Low oil pres
(fault)
Low oil pressure
shutdown occurs if
a low oil pressure
condition exists.
Note: The low oil
pressure shutdown
does not protect
against low oil
level. Check the
oil level at the
engine.
ECM data Below s etting 30 sec 5sec 7psi Check for leaks in the lubrication
system.
Check t he oil level and add oil if the
level is low.
Over speed
(fault)
Overspeed
shutdown occurs
if the engine
speed exceeds
the default setting.
ECM data Above setting 0sec 1sec 70 Hz Contact an authorized
distributor/dealer for service if
problem continues.
Coolant loss
(fault)
Loss o f coolant
shutdown occurs
after a loss of
coolant condition
is detected.
Digital input Grounded 30 sec 5sec N/A Check for a clogged seawater intake
or sea strainer.
Check for a damaged seawater pump
impeller.
Check for a clogged or dirty seawater
flow switch.
Check f or damaged water lines.
Check for proper installation.
Check for inlet restriction exceeding
the s eawater pump’s maximum inlet
restriction.
Hi eng temp
(fault)
High engine
temperature
shutdown occurs if
the engine coolant
temperature
exceeds the
default setting.
Note: The high
engine temp.
shutdown
functions only
when the coolant
level is in the
operating range.
ECM data Above setting 30 sec 5sec 230_ F Check for a low engine coolant level.
Check seawater pump impeller,
strainers, and seacock.
Aux input
(fault)
Auxiliary fault
input shutdown.
Note: Input from a
customer-supplied
switch that closes
when the fault is
active.
Digital input Grounded 3sec 0.3 sec N/A Check the cause of the auxiliary fault.