![]() A 3473-31 (J1939) Aftertreatment Failed to Ignite code is one example. Certain codes require a factory password in order to clear the code. Factory passwords are required in order to read the customer passwords.Ĭlear certain diagnostic trouble codes. Rerating the engine to another engine family - This includes flash programming an ECM from a non-multitorque flash file to a multitorque flash file. After the initial programming, factory passwords are required to program the parameters. A new ECM will allow these parameters to be programmed once without factory passwords. When the Engine Control Module (ECM) is replaced, the system configuration parameters must be programmed into the new ECM. Click to expand.Factory passwords are required in order to perform the following functions in the Caterpillar Electronic Technician (ET):Ĭhange the system configuration parameters. ![]()
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