2A39 - P1024

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



none









2A39 - P1024 (DME)



2A39 - P1024







Information saved in



DME









Fault code



2A39 - P1024









Fault text



Valvetronic, adjustment range









Fault description



VVT-Self-Learning Function Faulty Lower Learning Range (Bank 1)









Condition for fault identification



Test condition:





Adjustment range monitor When travel limit initialization routine is executed. (travel limit initialization routine is automatically executed in a 5 hour (engine operating hours) cycle or with 'initialize travel limits' tester request.





Terminal condition: Terminal 15 ON Voltage condition:





Electrical system voltage Terminal 87 >10.0 V









Condition for fault memory entry



following renewed successful execution of the travel limit initialization routine









Action in service



1. Use tester request to repeat the VVT travel limit initialization routine 2. If Item No.1 is not OK, it will be necessary to check the VVT mechanical components /VVT servo motor









Fault effect and breakdown warning







Driver information



Warning light:





ECE: No warning message. Engine reverts to VVT emergency backup mode (throttled operation) US: OPEN

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