Troubleshooting

RENR2696-01 33
Troubleshooting Section
Flash Programm
ing a Personality
Module
1. Connect the electronic service tool to the service
tool connector.
2. Select “WinFlash” from the “Utilities” menu on the
electronic service tool.
“WinFlash” will try to detect an ECM.
3. When an ECM has
been detected, the “ECM
Selector” window will appear. Select the
appropriate ECM that needs to be flashed and
press “Brows
e”.
The “Flash File Selection” window will appear.
4. Theflashfilesarelocatedonadiskdriveandin
a directory. Select the correct disk drive and the
correct dire
ctory from “Drives” and “Directories” on
the electronic service tool.
Alistoffla
sh files will appear.
5. Select the correct file from the list of flash files.
Read the “Fi
le Info” and the “Description” in order
to verify that the correct file is selected. Select
“OK”.
6. Select the “Begin Flash” button in order to program
the personality module.
When the flash is completed, this message will
appear: “Flash Completed Successfully”.
7. Start the engine and check for proper operation.
a. If a diagno
stic code of 253-02 Incorrect
ECM Software is generated, program any
parameters that were not in the old personality
module.
b. Access the “Configuration” screen under
the “Servi
ce”menuinordertodetermine
the parameters that require programming.
Look under the “Tattletale” column. All of the
paramete
rs should have a tattletale of 1 or
more. If a parameter has a tattletale of 0,
program that parameter.
“WinFlash” Error Messages
If you rec
eive any error messages during flash
programming, click on the “Cancel” button in order
to stop the process. Access the information about
the “ECM
Summary” under the “Information” menu.
Make sure that you are flashing the correct file for
your engine.