Wednesday, July 22, 2020

2010 BMW 128i Convertible (E88) L6-3.0L (N52K) P Code Charts

2010 BMW 128i Convertible (E88) L6-3.0L (N52K) P Code Charts

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P107A

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

54

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

1. Check for correct reluctor attachment at VVT sensor.

2. Defective VVT servo motor (for instance, interturn short

circuit) Check servo motor and replace as indicated

3. Check wiring harness from VVT motor to DME for shorts

between the two VVT wires and vehicle ground.

4. 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