Diesel Direct Fuel Injection (DFI) Engine Control Module (ECM) -J248-, replacing: Installing

Place new Engine Control Module (ECM) -J248- into retaining frame.
Install Engine Control Module (ECM) -J248- connector and lock.
Check previous code and new Engine Control Module (ECM) - J248- code, see ENGINE CONTROL MODULE (ECM) -J248-, CODING
Check DTC memory, if necessary, repair malfunctions and erase DTC memory. See DIAGNOSTIC TROUBLE CODE (DTC) MEMORY, CHECKING AND ERASING .
Set readiness code, see READINESS CODE, SETTING