Troubleshooting

Service
i06599992
Service Tool Features
Override Parameters
The override parameters screen has multiple
overrides. The parameters control various functions
on the engine and the aftertreatment. These
functions and features allow the technician to
troubleshoot different engine systems.
Navigate to the following menu options in the
electronic service tool to access the “Override
Parameters” :
• Diagnostics
• Diagnostic Tests
• Override Parameters
Glow Plug Starting Aid Override
This override is used to check that the glow plugs are
functioning correctly. The override will remain active
until switched off using 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.
Select the “Diagnostics” tab.
Select the “Active Diagnostic Codes” tab.
Logged Diagnostic Codes
The purpose of this screen is to show all the logged
diagnostic codes. Logged diagnostic codes will be
cleared from the “Logged Diagnostic Codes” screen
when the code has not been active for 40 hours.
In the electronic service tool, select the engine ECM.
Select the “Diagnostics” tab.
Select the “Logged Diagnostic Codes” tab.
Diagnostic Tests
Electronic service tool diagnostic tests are listed
below.
Select the “Diagnostics” tab.
Select the “Diagnostic Tests” tab.
Cylinder Cutout
This test can disable individual cylinders when the
engine is running to help identify cylinders that are
performing below the required level.
Click “Change” for an individual cylinder to switch off
that cylinder manually. This test can be used to
identify faults by listening to the sound of the engine
as a cylinder is disabled. If there is no change in the
sound of the engine as a cylinder is disabled, a fault
in that cylinder may be indicated.
Fuel Rail Pressure Test
This test raises the fuel pressure in the high-pressure
fuel rail to 180000 kPa (26107 psi) for 1 minute at
1300 rpm.
After this test has completed and the fuel pressure
has dropped to a safe level, the fuel system can be
inspected for signs of leakage.
Calibrations
In the electronic service tool, go to the following
menu options:
Select the “Service” tab.
Select the “Calibrations” tab.
Calibrations Listed in the Engine ECM
Menu
Injector Codes Calibration
Whenever an injector is replaced, the injector must
be trimmed. Trimming the injector calibrates all the
injectors to deliver the same amount of fuel. The
Injector Codes Calibration allows the injector trim
code information to be programmed into the ECM.
After the injector is calibrated, the calibration data is
checked for validity.
When new injectors are installed, record the serial
numbers of each injector and input using the
electronic service tool. Refer to Troubleshooting,
“Injector Code - Calibrate” for more information.
Component Replacement Resets
In the electronic service tool, go to the
“Configurations” screen.
Oxidation Catalyst Replacement Reset
Use this reset when the Diesel Oxidation Catalyst
(DOC) is replaced.
Lambda Sensor Replacement Reset
Use this reset when the oxygen sensor is replaced.
UENR0612-07 255
Service
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