Tuesday, August 6, 2019

2D52 - P16A9

2020 BMW 128i Coupe (E82) L6-3.0L (N51) Diagnostic Trouble Codes ( DTC ): Service instruction



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2D52



2D52 - P16A9







Information saved in



DME









Fault code



2D52 - P16A9









Fault text



DME, internal fault: monitoring, engine speed









Fault description



Control Module Self-Test, Speed Monitoring Reset









Condition for fault identification



Test condition:





Control module monitor





Modelled rpm from segment time is compared with crankshaft rpm





Terminal condition: Terminal 15 ON Voltage condition:





Voltage in onboard electrical system >= 10 V









Condition for fault memory entry



480 ms









Action in service



If frequency >=3 Replace DME









Fault effect and breakdown warning







Driver information



Warning light:





MIL OFF EML ON CC: Reduced power, engine malfunction





RPM limited to 1300 rpm

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