Passwords allow the factory to control access to engine calibration parameters. Passwords prevent unauthorized erasing of logged events. Passwords are part of a security system that helps to prevent unauthorized reprogramming of certain parameters.
A permanent record is essential when customer programmable parameters must be recovered. The tattletale number shows if a parameter has been changed.Īlways document the parameters and the settings that are programmed into the engine control. Parameters that can be changed have a tattletale number. Some of the parameters are protected from unauthorized changes by passwords. The Cat ET can also be used to change certain parameters. Cat ET can be used to view certain parameters that can affect the operation of the engine.
