Troubleshooting

32 RENR2696-01
Troubleshooting Section
Programming Pa
rameters
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Programmin g Parameters
Theelectronicservicetoolcanbeusedtoview
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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Factory Passwords
Passwords
Passwords a
re part of a security system that helps
to prevent unauthorized reprogramming of certain
parameters. Passwords prevent unauthorized
erasing of
logged events. Passwords allow the
factory to control access to engine calibration
parameters. Passwords allow the customer to control
access to c
ertain programmable engine parameters.
Factory P
asswords
Factory passwords are required to clear any event
code. Fac
tory passwords are required to change
certain parameters such as Full Load Setting. The
factory passwords restrict changes to authorized
personne
l. When the correct factory passwords have
been entered, the changes can then be made.
In order
to obtain the proper factory passwords,
certain information must be given to an authorized
Perkins distributor. Since the factory passwords
contain
alphabetic characters, the electronic service
tool can be used to perform this function. In order
to obtain the factory passwords, proceed as if
you alr
eady have the factory passwords. At some
point, if the factory passwords are actually needed,
the electronic service tool will request the factory
passwo
rds and the electronic service tool will display
the information that is required to obtain the factory
passwords.
Note: The old interlock code is required to change
the interlock c
ode on a used ECM. A new interlock
code is also required to change the interlock code
onausedECM.
The electronic service tool screen for factory
passwords will display the following parameters:
•
Serial number of the Electronic Control Module
(ECM)
•
Engine serial number
•
Serial numbe
r for the electronic service tool
•
Reason Code
•
Total Tattletale number
Note: The fact
ory passwords may only be used
for one programming session. A different set of
factory passwords will be required after you exit
the electron
ic service tool screen. A different set of
passwords will be required to change information on
another electronic service tool screen.
Customer Passwords
Customer Passwords allow the customer to restrict
access to parameters that are programmable by the
customer. T
he customer passwords cannot be longer
than eight characters. The customer has the option
of entering one or two customer passwords.
Note: If the owner loses the owner’s customer
passwords, the owner will not be able to program
parameter
s that are protected by customer
passwords. By using factory passwords, one can
read customer passwords. Then use those customer
password
s to program parameters that have been
protected by customer passwords.
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Flash Programming
Flash Programming – This is a method of
programming or updating the personality module in
an ECM.
Theelectronicservicetoolcanbeutilizedtoflash
a new personality module into the ECM. The flash
is accomplished by transferring the data from a PC
to the ECM.