ELECTRONIC TECHNICIAN (ET) TROUBLESHOOTING - Continued
This is a method of programming or updating the flash file in an engine's Electronic Control Module (ECM). Use
this procedure if original ECM flash files are missing or not available. To update configuration files, refer to WP
0013, SYMPTOM 15. Caterpillar Electronic Technician (ET)
to flash program
a file into the memory
engine's ECM. If you do not have the flash file, it must be obtained from your Caterpillar dealer.
Personality Module Mismatch. ECM has an incorrect or outdated Flash File.
On EMCP, set ENGINE CONTROL switch to OFF/RESET. Set Battery
Disconnect Switch to OFF. Set DEAD CRANK SWITCH to OFF.
Set Battery Disconnect Switch to ON. Set DEAD CRANK SWITCH to NORMAL.
On EMCP set ENGINE CONTROL switch to COOL DOWN/STOP.
Establish communication between Cat ET and the engine's ECM.
Select WinFlash from the Utilities menu on Cat ET.
If WinFlash will not communicate with the ECM, refer to Troubleshooting, Electronic Service Tool
Will Not Communicate with ECM.
Program the flash file into the ECM.
a. Select the engine ECM under the Detected ECMs.
b. Press the Browse button in order to select the name of the flash file that will
be programmed into the ECM.
The Flash Files are located on a CD provided with the Cat ET software.
When the correct flash file is selected, press the Open button.
d. Verify that the File Values match the application. If the File Values do not
match the application, obtain the correct flash file.
e. When the correct flash file is selected, press the Begin Flash button.
Cat ET will indicate when flash programming has been successfully
Turn the ENGINE CONTROL switch to MANUAL START. Check for proper
operation. Repair any active diagnostic or event codes.
WinFlash Error Messages
If you receive 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.