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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 524 (Engine Controls/Fuel - 5.3L, 6.0L, 6.2L - Description And Operation) >> Description and Operation >> Engine Control Module Description >> EEPROM

Engine Control Module Description: EEPROM

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The electronically erasable programmable read only memory (EEPROM) is an integral part of the ECM. The EEPROM contains program and calibration information that the ECM needs in order to control engine operation.

Special equipment, as well as the correct program and calibration for the vehicle, are required in order to reprogram the ECM.

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