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KevinB, Technician
Category: Heavy Equipment
Satisfied Customers: 228
Experience:  Cat Field Tech for 6 years, John Deere Field Tech For 5 years
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The password XXXXX acess the ECM, cant set the moter to my specs

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I have a KW WL900 e model cat, previose owner forgot the password XXXXX acess the ECM, cant set the moter to my specs any ideas
Your CAT dealer could not reflash the computer?
Customer: replied 7 years ago.

Rush Peterbilt of Fort Worth Tx. told us the ecm could not be reset without password. That sounds pretty far fetched to me , they said my only other opption would be to replace ecm. Which they could redily produce.


Customer parameters can be protected by customer passwords. The customer passwords are programmed by the customer. Factory passwords can be used to change customer passwords if customer passwords are lost.


My advice would be to find a different dealer the above post is straight out of the CAT repair manual.

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