Operation Section
-93-
Advanced Diagnostics(G643E Only)
MI-07 systems are equipped with built-in fault diagnostics.
Detected system faults can be displayed by the Malfunction
Indicator Lamp (MIL) as Diagnostic Fault Codes (DFC) or
flash codes, and viewed in detail with the use of the Service
Tool software. When the ignition key is turned on, the MIL
will illuminate and remain on until the engine is started.
Once the engine is started, the MIL lamp will go out unless
one or more fault conditions are present. If a detected fault
condition exists, the fault or faults will be stored in the
memory of the small engine control module (SECM). Once
an active fault occurs the MIL will illuminate and remain ON.
This signals the operator that a fault has been detected by
the SECM.
(1) Malfunction Indicator Lamp(MIL) for Engine control system
Reading Diagnostic Fault Codes
All MI-07 fault codes are three-digit codes. When the fault
codes are retrieved (displayed) the MIL will flash for each
digit with a short pause (0.5 seconds) between digits and a
long pause (1.2 seconds) between fault codes. A code 12
is displayed at the end of the code list.
EXAMPLE: A code 461 (ETCSticking) has been
detected and the engine has shut down and the MIL has
remained ON. When the codes are displayed the MIL will
flash four times (4), pause, then flash six times (6), pause,
then flash one time (1) This identifies a four sixty one (461),
which is the ETCSticking fault. If any additional faults were
stored, the SECM would again have a long pause, then
display the next fault by flashing each digit. Since no other
faults were stored there will be a long pause then one flash
(1), pause, then two flashes (2). This identifies a twelve,
signifying the end of the fault list. This list will then repeat
.
Displaying Fault Codes (DFC) from SECM
Memory
To enter code display mode you must turn OFF the ignition
key. Now turn ON the key but do not start the engine. As
soon as you turn the key to the ON position you must cycle
the foot pedal by depressing it to the floor and then fully
releasing the pedal (pedal maneuver). You must fully cycle
the foot pedal three (3) times within five (5) seconds to
enable the display codes feature of the SECM. Simply turn
the key OFF to exit display mode. The code list will
continue to repeat until the key is turned OFF.
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