28 KENR6933
Troubleshooting Section
Replacement of electronic components should
not be based on s
napshot data alone. If too much
emphasis is put on snapshot data, the result could
be a misdiagnosed root cause. Also when snapshot
data that is tr
iggered by a diagnostic code is being
viewed, the ECM sets a sensor value with an active
diagnostic code to a default value when the code
is active. Th
is is the reason that the sensor value
suddenly jumps to a specific value at the trigger point
and the sensor value remains at the specific value for
the rest of t
he snapshot frames.
i02415228
Factory Passwo rds
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: Facto
ry passwords are provided only to
Perkins dealers.
Factory pa
sswords are required to perform each of
the following functions:
•
Program a n
ew Electronic Control Module (ECM).
When an ECM is replaced, the system
configurat
ion parameters must be programmed
into the new ECM. A new ECM will allow these
parameters to be programmed once without factory
password
s. After the initial programming, some
parameters are protected by factory passwords.
•
Rerate th
eengine.
This may require changing the interlock code,
which is
protected by factory passwords.
•
Clear engine events and certain diagnostic codes.
Most engine events require factory passwords in
order to clear the code from ECM memory. Clear
these co
des only when you are certain that the
problem has been corrected. For example,
the E362-1 Engine Overspeed requires the
use of f
actory passwords in order to clear the
code from ECM memory.
Since factory passwords contain alphabetic
characters, th
e electronic service tool must be
used to perform these functions. In order to obtain
factory passwords, proceed as if you already
have the passw
ord. If factory passwords are
needed, the electronic service tool will request
the factory p asswords and the electronic service
tool will dis
play the information that is required
to obtain the passwords. For the worksheet that
is used for acquiring factory passwords, refer to
Troublesho
oting, “Factory Passwords Worksheet”.
i02415238
Flash Prog ramming
Flash Programming – A method of loading a flash
file into the Electronic Control Module (ECM)
The electronic service tool can be utilized to
flash program a flash file into the ECM. The flash
programming transfers the flash file from the P C to
the ECM.
Flash P rogramming a Flash Fi le
1. Obtain the part number for the new flash file.
Note: If you do not have the part number for the flash
file, use “PTMI” on the Perkins Internet.
Note: You must have the engine serial number in
order to search for the flash file’s part number.
2. Connect the electronic service tool to the service
tool connector.
3. Turn the keyswitch to the ON position. Do not start
the engine.
4. Select “WinFlash” from the “Utilities” menu on the
electronic service tool.
Note: If “WinFlash” will not communicate with the
ECM, refer to Troubleshooting, “Electronic Service
Tool Will Not Communicate with ECM”.
5. Flash program the flash file into the ECM.
a. Select the engine ECM under the “Detected
ECMs”.
b. Press the “Browse” button in order to select
the part number of the flash file that will be
programmed into the ECM.
c. When the correct flash file is selected, press
the “Open” button.
To Next Page
Loading...
