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Home >> Buick >> 2000 >> Regal LS >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Self-Diagnostics - 3.8L >> Diagnostic Tests >> DTC P0602: Control Module Not Programmed >> Circuit Description

Circuit Description

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PCM uses an Electrically Erasable Programmable Read Only Memory (EEPROM). EEPROM contains program information and calibrations required for engine, transaxle, and powertrain diagnostics operation. If PCM does not contain correct program(s) required to operate vehicle, DTC will set.

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