Programming Parameters
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Programming Parameters
The electronic service tool can be used to view
certain parameters that can affect the operation of the
engine. The electronic service tool can also be used
to change certain parameters. The parameters are
stored in the Electronic Control Module (ECM). Some
of the parameters are protected from unauthorized
changes by passwords. Parameters that can be
changed have a tattletale number. The tattletale
number shows if a parameter has been changed.
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Test ECM Mode
“
Test ECM Mode
”
is a feature in the software that
can be used to help troubleshoot an engine that may
have a fault in the Electronic Control Module (ECM).
This feature allows a standard ECM to be used as a
test ECM. This feature eliminates the need to stock a
test ECM.
1.
Search for the latest flash file for the engine.
Note:
If a newer software version is available for the
engine, install the newest software on the suspect
ECM. If the new software does not eliminate the fault,
continue with this procedure.
2.
Use the
“
Copy Configuration
”
feature on the
electronic service tool to copy the parameters from
the suspect ECM.
Note:
If the
“
ECM Replacement
”
feature cannot be
used, record the programmed values into the
“
Customer Specified Parameters Worksheet
”
. Also
record the system configuration parameters.
3.
Disconnect the suspect ECM. Temporarily connect
the test ECM to the engine. Do not mount the test
ECM on the engine.
4.
Flash program the test ECM with the newest
software that is available.
5.
Start the
“
Test ECM Mode
”
on the electronic
service tool. Access the feature through the
“
Service
”
menu. The electronic service tool will
display the status of the test ECM and the hours
that are remaining for the
“
Test ECM Mode
”
.
Note:
“
Test ECM Mode
”
can only be activated if the
engine serial number has not already been
programmed during normal operation of the ECM. If
the engine serial number is programmed and the
ECM is not in
“
Test ECM Mode
”
, the ECM can never
be used as a test ECM.
6.
Use the
“
Copy Configuration
”
feature on the
electronic service tool to program the test ECM.
Note:
If the
“
ECM Replacement
”
feature can not be
used, program the test ECM with the values from the
“
Customer Specified Parameters Worksheet
”
and the
values from the System Configuration Parameters.
7.
Program the engine serial number into the test
ECM.
Note:
The
“
Test ECM Mode
”
must be activated
before the engine serial number is programmed into
the ECM.
8.
Verify that the test ECM eliminates the fault.
When the
“
Test ECM Mode
”
is activated, an internal
timer sets a 24 hour clock. This clock will count down
only while the ECM is powered and the keyswitch is
in the ON position. After the ECM has counted down
the 24 hour period, the ECM will exit the
“
Test ECM
Mode
”
. The parameters and the engine serial
number will be set.
If the test ECM eliminates the fault, the engine can be
released while the
“
Test ECM Mode
”
is still active.
Once an ECM has been activated in the
“
Test ECM
Mode
”
, the ECM will stay in the
“
Test ECM Mode
”
until the timer times out. If the ECM is used as a test
ECM for more than one engine, the
“
Test ECM
Mode
”
must be reactivated. Anytime prior to the
“
Test ECM Mode
”
timing out, the ECM can be reset
to 24 hours.
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Factory Passwords
NOTICE
Operating the engine with a flash file not designed for
that engine will damage the engine. Be sure the flash
file is correct for your engine.
Note:
Factory passwords are provided only to
Perkins dealers.
Factory passwords are required to perform each of
the following functions:
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