Circuit Description

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Electronically Erasable Programmable Read Only (EEPROM) is used to contain program information and calibrations required for powertrain diagnostic operation. EEPROM is not replaceable. When PCM is replaced or a required calibration update is required, PCM must be programmed using approved equipment.

DTC will set when PCM does not contain the correct program required to operate vehicle, or PCM has not been programmed.