P1031

2A63 - P1031

Information saved in
DME

Fault code
2A63 - P1031

Fault text
Valvetronic, actuator motor: monitoring sluggish movement,
direction of rotation

Fault description
VVT-Actuator Monitoring Recognition of Direction of
Rotation Plausibility (Bank 1)

Condition for fault identification
Test condition:
- Fault class:
Rotation direction recognition
- Check to determine whether adjustment
can be approved. Check VVT system once
before each power application
within one ? driving cycle?
for correct servo motor
polarity and stiction in
system.
Terminal condition: Terminal 15 ON
Voltage condition:
9.6 - 15.5 V

Condition for fault memory entry
63 ms to 498 ms

Action in service
After repair?
Yes: Check power plug terminal assignments using circuit
diagram;
check wiring harness for open circuit;
check for wear, mechanical stiction;

Fault effect and breakdown warning


Driver information
Warning light:
none

Service instruction
none