SmartCraft PCM
Page 12
Fault Seconds
When critical faults occur and remain active the PCM keeps track of how many
seconds the fault has persisted during engine operation. e type and number of
critical faults this function keeps track of is pre-selected by the engine manufac-
turer. All PCM faults do not have an associated “Fault Second” counter assigned
to them, only a select number of fault types are kept track of.
To view Fault Seconds information select the “Fault Seconds” menu option. A
list of fault types will be displayed showing how many seconds each fault type
persisted.
Erase Fault History
Selecting this option from the Fault History menu will erase the PCM’s Fault
Second data and Freeze Frame Memory data. If active faults are present the
PCM’s Freeze Frame Memory may immediately repopulate with current active
fault information.
RPM History
PCM control modules have the ability to record the number of hours an engine
has been operated within a predetermined set of RPM ranges. ese ranges are
set at the factory and allow a service technician to view a prole of how a partic-
ular engine has been operated. Upon selecting the RPM History menu option a
list will be displayed showing the hours accumulated in particular RPM ranges.
Use the ▲ and ▼ keys to scroll through the RPM History data. Press the NO
key to return to the PCM History menu.
Erase RPM History
Selecting this option from the Fault History menu will erase the PCM’s RPM
History data. Accumulated hours in all of the RPM History’s ranges will be reset
to zero. is function DOES NOT erase total engine operating hours.
Total operating hours are displayed when initially selecting a system type using
the “Mercury Outboards” selection from the scan tool’s main menu. Total
engine operating hours cannot be cleared and reect the total run time for the
life of the engine.
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