2019 BMW 128i Convertible (E88) L6-3.0L (N51) A L L Diagnostic Trouble Codes ( DTC ): Manufacturer Code Charts Page 95
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
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 wakeup).
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
