1997 - 2000 DFI ECM
Page 28
Fault History
e DFI’s engine control module contains a non-volatile memory that is used to
retain the number of times a fault has occurred. To view Fault History informa-
tion, perform the following steps:
1) Select the “Fault History“ function from the scanner’s DFI system menu.
2) Use the ▲ and ▼ keys to recall and scroll through the Fault History occur-
rence counters. Press NO to return to the main DFI system menu.
Run History
e DFI control modules have the ability to record the number of hours an
engine has been operated within a predetermined set of RPM ranges. e Run
History feature also includes additional data related to the length of time par-
ticular engine conditions have been present (such as over-temperature or RPM
limit).
To view Run History information select the “Run History” menu item then press
YES. e scanner will display the total number of hours the engine has operated
as well as the number of hours it has operated in various RPM ranges. Engine
fault timers will also be displayed. Use the ▲ and ▼ keys to scroll through
the Run History data. Aer viewing the Run History data press the NO key to
return to the main DFI system menu.
Erase Fault History
is function clears the Fault History memory. e Fault history counters will
be reset to zero aer this function is executed.
Note: On pre-1998 DFI engines the fault history cannot be erased.
Erase Run History
is function clears the Run History memory. All accumulated Run History data
will be reset to zero aer this function is executed. Please note that ECM Run
Time will not be cleared. is value is not erasable.
DFI Functions
e DFI Functions option allows a technician to access a variety of DFI
functional tests and settings as shown in Figure 17.
To Next Page
Loading...