1999 BMW 5 Series 550i No Start DME Codes 002F44 006F56
This 1999 BMW 525i was towed in because of a no start complaint. The engine would crank but the car would not start. Upon running a scan with the BMW diagnostic tool ISTA, we found DME Codes:
002F44 DME: EWS preventing manipulation 100704
006F56 No message (engine control, 0xB4), receiver DSC, transmitter DME-DDE
The DME module had to be re-synced with the CAS module. Once this was done, the vehicle started and ran normally. While we can’t say for certain what caused it to get out of sync, we believe a failing battery may be the cause.
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