DEF Dosing Injector Override
This override is used to check the solenoid operation
of the DEF Dosing Injector. The test verifies that the
injector opens and closes correctly.
This test is only available when no engine speed is
present.
Unless the function is disabled, the override will
remain enabled for 5 minutes.
DEF Dosing Pump Motor Override
This override is used to check the operation of the
DEF Dosing Pump Motor. The override will supply
current to the motor. This test verifies that the pump
motor is working correctly.
This test is only available when no engine speed is
present.
Unless the function is disabled, the override will
remain enabled for 5 minutes.
Note: This override will only test the reverse (purge)
function of the pump motor. Forward motion is not
available.
Line Heaters 1, 2 and 3
These overrides are used to check the electrical
operation of the individual line heaters. This test can
be used to verify that each line heater is working
correctly.
Unless the function is disabled, the override will
remain enabled for 5 minutes.
System Troubleshooting Settings
The “System Troubleshooting Settings” screen will
allow overrides to be enabled.
In the electronic service tool, select the engine ECM
or the Diesel Exhaust Fluid Controller (DCU) as
appropriate for the required override.
System Troubleshooting Settings Listed
in the Engine ECM Menu
Engine Emissions Operator Inducement
Service Mode Override
The override is used by service technicians to stop
the inducement counter and disable engine
restrictions due to inducement to troubleshoot. Once
the override is activated, the operator can navigate to
other functions in the electronic service tool.
Factory passwords are required to perform this
override as the engine will be operating outside of the
emissions window.
Injector Disable Override
This override will allow the user to disable the
injectors from activating when performing certain
troubleshooting procedures.
SCR Thermal Management Active
Override
This override will disable SCR thermal management
(HC dosing) whilst performing certain troubleshooting
procedures. Once the override is activated, the
operator can navigate to other functions in the
electronic service tool.
Active Diagnostic Codes
The purpose of this screen is to show all the active
diagnostic codes.
In the electronic service tool, select the engine ECM
or the Diesel Exhaust Fluid Controller (DCU) as
appropriate.
Select the “Diagnostics” tab.
Select the “Active Diagnostic Codes” tab.
Tab Functions At Bottom of Screen
Reset All
This tab will reset all the active codes.
Troubleshoot Code
This tab is not available for Tier 4 engines. Refer to
Troubleshooting, “Diagnostic Trouble Codes” for
further information.
Troubleshoot Symptom
This tab is not available for Tier 4 engines. Refer to
Troubleshooting, “Diagnostic Trouble Codes” for
further information.
Logged Diagnostic Codes
The purpose of this screen is to show all the logged
diagnostic codes.
In the electronic service tool, select the engine ECM
or the Diesel Exhaust Fluid Controller (DCU) as
appropriate.
Select the “Diagnostics” tab.
Select the “Logged Diagnostic Codes” tab.
UENR4469-36 455
Service
Copyright of Perkins Engine Company Limited. NOT FOR REPRINTING OR RESALE
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