P1064

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

Service instruction
none