Monday, August 12, 2019

2A3D - P1049

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



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2A3D - P1049 (DME)



2A3D - P1049







Information saved in



DME









Fault code



2A3D - P1049









Fault text



Valvetronic, actuator motor: activation









Fault description



VVT-Control Circuit Engine Cables Short Circuit (Bank 1)









Condition for fault identification



Test condition:





Short circuit between motor wires Terminal condition: Terminal 15 ON Voltage condition:





Battery voltage > 6.99 V









Condition for fault memory entry



Fault set immediate without debounce









Action in service



Check wiring to VVT motor



Ignition off, allow control module to assume dormant state as indicated, restart



If Items 1 and 2 are not OK, it will be necessary to inspect the control module's electronic circuitry







Fault effect and breakdown warning







Driver information



Warning light:





Emergency default mode 2

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