Wednesday, May 20, 2020

2010 BMW 128i Convertible (E88) L6-3.0L (N52K) Manufacturer Code Page 94

2010 BMW 128i Convertible (E88) L6-3.0L (N52K) Manufacturer Code Page 94

Fault code

2A41 – P1075

Fault text

Valvetronic, electrical overload protection

Fault description

VVT-Overload Protection (Bank 1)

Condition for fault identification

Test condition:

Electrical overload protection

The engine management 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.

Always active provided that fault codes #10813,#10816,

#10819 are not present.

Terminal condition: none

Voltage condition:

none

Condition for fault memory entry

Warning threshold: 112 掳C DME internal driver circuit

temperature

Deactivation threshold: 126 掳C internal DME driver circuit

temperature

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 (Clear

fault memory / switch ignition terminals)

3. Check VVT motor wiring harness between VVT motor

and DME for shorts between both VVT motor wires and

vehicle ground.

Fault effect and breakdown warning

Driver information

Warning light:

MIL ON

Service instruction

none

2A42

2A42 – P1064

Information saved in

DME

Fault code

2A42 – P1064

Fault text

Valvetronic, position at new start: plausibility

Fault description

VVT-Value Comparison Starting Position/Parking Position

Plausibility (Bank 1)

Condition for fault identification

Test condition:

When the DME is activated (wake-up) it assesses the current

VVT sensor angle based on the last VVT sensor angle prior

to shutdown. If there is a substantial difference in the two