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

none

2A43 - P107A (DME)

2A43 - P107A

Information saved in

DME

Fault code

2A43 - P107A

Fault text

Valvetronic, thermal overload protection: warning threshold

Fault description

VVT-Overload Protection Control Motor Current Too High

Condition for fault identification

Test condition:

The engine-management system monitors the VVT motor's current draw. If the monitored current draw exceeds a defined threshold for several seconds the VVT system is deactivated (VVT emergency operation mode), and the engine reverts to throttled operation.

Terminal condition: Terminal 15 ON Voltage condition:

none

Condition for fault memory entry always active when DME is awake current threshold roughly 24A,

Action in service

Check for correct reluctor attachment at VVT sensor.

Defective VVT servo motor (for instance, interturn short circuit) Check servo motor and replace as indicated

Check wiring harness from VVT motor to DME for shorts between the two VVT wires and vehicle ground.

If abuse is suspected: Clear fault memory from DME

Fault effect and breakdown warning

Driver information

Warning light:

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