2A42 - P1064

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

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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 angles, the operative assumption will that substantial repairs have been carried out on the cylinder head. The VVT travel limit positions must be re-initialized.

No VVT sensor faults should be present (#10800,

#10801,#10802).

Terminal condition: Terminal 15 ON Voltage condition:

none

Condition for fault memory entry

Following successful travel limit initialization routine (can be initiated by tester),

active only once at moment when system starts (DME wake- up).

Action in service

Conduct travel limit initialization routine using tester for activation. Delete stored fault codes from DME fault memory and initiate dormant vehicle state. Repeat procedure in case of doubt.

Fault effect and breakdown warning

Driver information

Warning light:

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