2A44 - P1062

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

none

2A44

2A44 - P1062

Information saved in

DME

Fault code

2A44 - P1062

Fault text

Valvetronic, power limitation

Fault description

VVT-Limp Home Request Full Stroke Position not Reached (Bank 1)

Condition for fault identification

Test condition:

VVT must be in emergency operation mode (meaning that no VVT sensor signal is present) and unit travels to upper travel limit at 30 % pulse-duty factor for VVT motor.

The mass induction airflow is employed as an index to determine whether the maximum VVT stroke has been reached.

Terminal condition: Terminal 15 ON Voltage condition:

none

Condition for fault memory entry

after Terminal 15 switch and/or always active if DME is awake.

Action in service

Check and repair the sensor defect using the correct repair instructions.

Check HFM mass airflow signal

2. Check VVT mechnical system (VVT servo motor, VVT gearset, VVT eccentric shaft,...)

Fault effect and breakdown warning

Driver information

Warning light:

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