Thursday, July 11, 2019

2A77 - P105A

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



none









2A77 - P105A (DME)



2A77 - P105A







Information saved in



DME









Fault code



2A77 - P105A









Fault text



Control module, internal fault: Valvetronic output stage









Fault description



Internal Control Module VVT Error, Current Too High









Condition for fault identification



Test condition:





Escess current recognized on high side or low side transistors (ATIC61 diagnosis)





Terminal condition: Terminal 15 ON Voltage condition:





Battery voltage > 9.953125V and battery voltage < 25.898438V









Condition for fault memory entry



0.2









Action in service



Ignition off, let control module return to dormant state as indicated, restart



If Item 1 is not OK, it will be necessary to check the electronics in the control module







Fault effect and breakdown warning







Driver information



Warning light:





Fault entry in info memory only

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