C-10, C-12, C-15 and C-16 Industrial Engines – ECM Will Not Accept Factory Passwords

Probable Causes

One of the following items may not be recorded correctly on the Caterpillar^® Electronic Technician (ET):

Passwords
Serial numbers
Total tattletale
Reason code

Recommended Actions

Note: The procedures have been listed in order of probability. Complete the procedures in the order of the listed test steps.

Table 1
Troubleshooting Test Steps	Values	Steps
1. Check Factory Password A. Verify that the correct passwords were entered. B. Verify that Cat ET is displaying the “Enter Factory Passwords” dialog box.	Factory Password	Result: Factory passwords were not accepted in Cat ET. Repair: Check every character in each password and remove the electrical power from the engine for 30 seconds and then retry. Use Cat ET to verify that the following information has been entered correctly: Engine Serial Number, Serial Number for the Electrical Control Module, Serial Number for Cat ET, Total Tattletale, and Reason Code.

For additional information, refer to Troubleshooting, “Factory Passwords”.

If the procedure did not correct the issues, contact your Cat dealer Technical Communicator (TC). For further assistance, your TC can confer with the Dealer Solutions Network (DSN).