(Table 240, contd)
Service Error Identifiers
Description Troubleshooting
$1164
Engine Speed / Load Incorrect
Bring the engine to idle and remove load and
then restart the Aftertreatment Sulfation Re-
covery Procedure. The test will try to take con-
trol of engine speed to elevate idle to required
position for duration of test.
$1168
Engine Exhaust Back Pressure Too High
The observed exhaust back pressure when
testing the EBPR is too high. Identify any as-
sociated EBPR diagnostics. Run the “Air Sys-
tem Motor Valves Verification Test” to check
correct operation of the EBPR.
$1169
Engine Exhaust Back Pressure Too Low
The observed exhaust back pressure when
testing the EBPR is too low. Identify any asso-
ciated EBPR diagnostics. Check for exhaust
system leaks. Run the “Air System Motor
Valves Verification Test” to check correct oper-
ation of the EBPR.
$116F
Engine Exhaust Gas Recirculation Valve Not
Responding to Command
Bring the engine to idle and remove load. The
current operating load may be too high to al-
low the EGR valve to close. Check for associ-
ated EGR valve diagnostics. Run the “Air
System Motor Valves Verification Test” to
check correct operation of the EGR valve.
i06071165
Customer Passwords
Customer passwords may be used to protect
customer parameters from being changed. The
electronic service tool can be used to change certain
parameters. There are some parameters that cannot
be changed and there are some applications that do
not allow any changes to the programmable
monitoring system. The passwords are programmed
into the Electronic Control Module (ECM) with the
electronic service tool. One password may be
programmed or both passwords may be
programmed. If customer passwords are not
programmed, customer parameters may be changed
by anyone.
To obtain customer passwords, contact the owner of
the machine. If the owner has forgotten the customer
passwords, factory passwords are used to create
temporary customer passwords. Temporary
customer passwords can be used to change the
original customer passwords or any parameter that is
protected by a customer password. When the
electronic service tool is disconnected, a prompt will
request the restoration of the original customer
passwords. If the original passwords are not
restored, the passwords will be changed to the
temporary passwords.
i06177728
Factory Passwords
Note: Factory passwords are provided only to
Perkins authorized distributors.
Factory passwords are necessary to authorize
access to certain screens on the electronic service
tool. Factory passwords are also used to access
specific configuration parameters in the Electronic
Control Module (ECM). If changes are made that
require factory passwords, the “Enter Factory
Passwords” dialog box will automatically be
displayed. A factory password must be obtained
before the change can be made.
Factory passwords may be required to perform each
of the following functions in the electronic service
tool:
ECM Replacement – When an ECM is replaced, the
system configuration parameters must be
programmed into the new ECM. The new ECM will
allow specific parameters to be programmed once
without the use of factory passwords. There may be
parameters that require factory passwords on the
ECM that is being replaced. Factory passwords may
be required in order to configure these parameters on
the new ECM.
Rerate Engine Power – Changing the interlock code
may be necessary. The interlock code is protected by
factory passwords.
UENR4469-36 499
Service
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