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Home >> BMW >> 1997 >> 840Ci (E31) V8-4398cc 4.4L DOHC (M62) >> Repair and Diagnosis >> Powertrain Management >> Description and Operation >> Technical Training >> Control Module Coding and Programming >> Powertrain Control Module Programming >> Storage of Program Data
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Storage of Program Data




Storage Of Program Data - M3.X Systems







In it's unprogrammed basic state, the EPROM only contains the resident data. The resident data provides control module/EPROM identification to the programming software prior to programming.
When programmed, the EPROM is full of the required characteristic maps (ignition timing, injection etc), control module constants, Identification data, etc.