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Home >> Cadillac >> 1999 >> Catera V6-3.0L VIN R >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Relays and Modules - Computers and Control Systems >> Engine Control Module >> Service and Repair >> EEPROM Programming
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EEPROM Programming

The replacement ECM comes pre-programmed with vehicle software/calibrations. However, the new ECM must be programmed with the frequency code of the Theft Deterrent Module currently on the vehicle. Refer to Programming Replacement keys, Ign Cyl, or ECM in Body and Accessories for the proper procedure. The vehicle will not start until this procedure is performed.
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