C7.1 Engines and Generator Sets Caterpillar

Probable Causes

One of the following items may not be recorded correctly on the electronic service tool:

• Passwords

• Serial numbers

• Total tattletale

• Reason code

Recommended Actions

1. Verify that the correct passwords were entered. Check every character in each password. Remove the electrical power from the engine for 30 seconds and then retry.

2. Verify that the electronic service tool is displaying the "Enter Factory Passwords" dialog box.

3. Use the electronic service tool to verify that the following information has been entered correctly:

   • Engine serial number

   • Serial number for the electronic control module

   • Serial number for the electronic service tool

   • Total tattletale

   • Reason code

For additional information, refer to Troubleshooting, "Factory Passwords".